:root{
  --rb-void:#05070E;
  --rb-deck:#0B1222;
  --rb-line:#1D2C47;
  --rb-cyan:#37E6FF;
  --rb-cyan-deep:#1C8FA8;
  --rb-violet:#8B5CFF;
  --rb-lime:#D8FF3E;
  --rb-ice:#E8F3FF;
  --rb-steel:#8DA2BA;
  --rb-coral:#FF6B8B;
  --rb-shell-w:1280px;
  --rb-pad:clamp(1rem,4vw,2.75rem);
  --rb-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --rb-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --rb-ease:cubic-bezier(.22,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{
  outline:2px solid var(--rb-lime);
  outline-offset:3px;
}

body{
  min-height:100vh;
  font-family:var(--rb-sans);
  font-size:clamp(1rem,.5vw + .9rem,1.0625rem);
  line-height:1.75;
  color:var(--rb-ice);
  background-color:var(--rb-void);
  background-image:
    radial-gradient(90% 60% at 50% -8%,rgba(139,92,255,.16),transparent 62%),
    radial-gradient(70% 50% at 92% 3%,rgba(55,230,255,.10),transparent 66%),
    linear-gradient(rgba(29,44,71,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(29,44,71,.42) 1px,transparent 1px);
  background-size:auto,auto,88px 88px,88px 88px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  background-position:center top,center top,center top,center top;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

#main-content{display:block;scroll-margin-top:150px}

/* ---------- 排版层级 ---------- */
.rb-display{
  font-size:clamp(2.8rem,8vw,7rem);
  line-height:.94;
  font-weight:200;
  letter-spacing:-.02em;
  color:var(--rb-ice);
}
.rb-display strong,.rb-display em{
  font-weight:800;
  font-style:italic;
  color:var(--rb-cyan);
  text-shadow:0 0 26px rgba(55,230,255,.45);
}
.rb-title{
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--rb-ice);
}
.rb-eyebrow{
  display:inline-block;
  font-family:var(--rb-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--rb-cyan);
}
.rb-lede{
  font-size:clamp(1rem,1.3vw,1.1rem);
  line-height:1.9;
  color:var(--rb-steel);
  max-width:62ch;
}
.rb-mono{font-family:var(--rb-mono);font-variant-numeric:tabular-nums}
.rb-prose{max-width:68ch;color:var(--rb-steel);line-height:1.9}
.rb-prose > * + *{margin-top:1rem}
.rb-prose h2,.rb-prose h3{color:var(--rb-ice);font-size:1.15rem;line-height:1.4;margin-top:1.75rem}
.rb-prose a{color:var(--rb-cyan);border-bottom:1px solid rgba(55,230,255,.45)}
.rb-prose ul{list-style:disc;padding-left:1.25rem}

/* ---------- 布局骨架 ---------- */
.rb-shell{
  width:100%;
  max-width:var(--rb-shell-w);
  margin-inline:auto;
  padding-inline:var(--rb-pad);
}
.rb-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(1rem,2.4vw,1.75rem);
}
.rb-span-4{grid-column:span 4}
.rb-span-5{grid-column:span 5}
.rb-span-6{grid-column:span 6}
.rb-span-7{grid-column:span 7}
.rb-span-8{grid-column:span 8}
.rb-span-12{grid-column:span 12}

/* ---------- 跳转链接 ---------- */
.rb-skip{
  position:fixed;
  top:-100px;
  left:1rem;
  z-index:200;
  padding:.7rem 1.2rem;
  background:var(--rb-cyan);
  color:#04060C;
  font-weight:700;
  font-size:.88rem;
  letter-spacing:.06em;
  transition:top .2s var(--rb-ease);
}
.rb-skip:focus{top:.75rem}

/* ---------- 按钮 ---------- */
.rb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  padding:.62rem 1.15rem;
  border:1px solid var(--rb-line);
  background:transparent;
  color:var(--rb-ice);
  font-size:.85rem;
  font-weight:600;
  letter-spacing:.1em;
  line-height:1.2;
  white-space:nowrap;
  transition:color .2s var(--rb-ease),background .2s var(--rb-ease),border-color .2s var(--rb-ease),box-shadow .2s var(--rb-ease),transform .2s var(--rb-ease);
}
.rb-btn::after{
  content:"";
  width:6px;
  height:6px;
  border-top:1px solid currentColor;
  border-right:1px solid currentColor;
  transform:rotate(45deg);
  opacity:.7;
  transition:transform .2s var(--rb-ease);
}
.rb-btn:hover{transform:translateX(2px)}
.rb-btn:hover::after{transform:translate(2px,-2px) rotate(45deg)}
.rb-btn--primary{
  background:linear-gradient(100deg,var(--rb-cyan) 0%,#5FD6FF 52%,var(--rb-violet) 100%);
  color:#04060C;
  border-color:transparent;
  font-weight:700;
  box-shadow:0 0 0 1px rgba(55,230,255,.4),0 10px 28px -14px rgba(55,230,255,.85);
}
.rb-btn--primary:hover{
  filter:brightness(1.07);
  box-shadow:0 0 0 1px rgba(55,230,255,.7),0 14px 34px -12px rgba(139,92,255,.9);
}
.rb-btn--ghost{
  border-color:rgba(55,230,255,.45);
  background:rgba(55,230,255,.06);
  color:var(--rb-cyan);
}
.rb-btn--ghost:hover{
  background:rgba(55,230,255,.14);
  border-color:var(--rb-cyan);
  box-shadow:0 0 20px -6px rgba(55,230,255,.9);
}

/* ---------- 头部 ---------- */
.rb-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(11,18,34,.98),rgba(5,7,14,.95));
  border-bottom:1px solid var(--rb-line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.rb-header__upper{
  background:
    linear-gradient(90deg,rgba(28,143,168,.16),rgba(11,18,34,0) 42%,rgba(139,92,255,.18));
  border-bottom:1px solid var(--rb-line);
}
.rb-header__upper-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.6rem clamp(1rem,2.5vw,2rem);
  padding-block:.7rem;
}
.rb-brand{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  margin-right:auto;
  min-width:0;
}
.rb-brand__mark{
  flex:0 0 auto;
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  color:var(--rb-cyan);
  background:rgba(55,230,255,.1);
  border:1px solid rgba(55,230,255,.55);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.rb-brand__glyph{width:17px;height:17px;fill:currentColor}
.rb-brand__text{display:flex;flex-direction:column;min-width:0}
.rb-brand__name{
  font-size:1.06rem;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1.25;
  color:var(--rb-ice);
}
.rb-brand__line{
  font-family:var(--rb-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  color:var(--rb-steel);
  white-space:nowrap;
}
.rb-header__meta{display:flex;flex-direction:column;gap:.1rem;min-width:0}
.rb-header__descriptor{
  font-family:var(--rb-mono);
  font-size:.72rem;
  letter-spacing:.12em;
  color:var(--rb-steel);
  white-space:nowrap;
}
.rb-header__status{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  font-size:.76rem;
  letter-spacing:.06em;
  color:var(--rb-cyan);
  white-space:nowrap;
}
.rb-header__pulse{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--rb-lime);
  box-shadow:0 0 0 0 rgba(216,255,62,.6);
  animation:rb-pulse 2.6s ease-out infinite;
}
@keyframes rb-pulse{
  0%{box-shadow:0 0 0 0 rgba(216,255,62,.55)}
  70%{box-shadow:0 0 0 9px rgba(216,255,62,0)}
  100%{box-shadow:0 0 0 0 rgba(216,255,62,0)}
}
.rb-header__actions{display:flex;align-items:center;gap:.6rem}

.rb-header__lower-inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:1rem;
  padding-block:.2rem;
}
.rb-header__utility{
  margin-left:auto;
  font-family:var(--rb-mono);
  font-size:.7rem;
  letter-spacing:.1em;
  color:var(--rb-steel);
  white-space:nowrap;
}

/* ---------- 导航 ---------- */
.rb-nav{min-width:0}
.rb-nav__list{display:flex;flex-wrap:wrap}
.rb-nav__item{display:block}
.rb-nav__link{
  position:relative;
  display:block;
  padding:.72rem .95rem;
  font-size:.9rem;
  letter-spacing:.05em;
  color:var(--rb-steel);
  border-bottom:2px solid transparent;
  transition:color .2s var(--rb-ease),border-color .2s var(--rb-ease),background .2s var(--rb-ease);
}
.rb-nav__link:hover{color:var(--rb-ice);background:rgba(55,230,255,.06)}
.rb-nav__link[aria-current="page"]{
  color:var(--rb-cyan);
  border-bottom-color:var(--rb-cyan);
  background:linear-gradient(180deg,transparent,rgba(55,230,255,.1));
}

.rb-nav-toggle{
  display:none;
  align-items:center;
  gap:.6rem;
  padding:.55rem .85rem;
  border:1px solid var(--rb-line);
  background:rgba(29,44,71,.4);
  color:var(--rb-ice);
  font-size:.8rem;
  letter-spacing:.16em;
}
.rb-nav-toggle__bars{display:grid;gap:4px;width:18px}
.rb-nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--rb-cyan);
  transition:transform .25s var(--rb-ease),opacity .2s var(--rb-ease);
}
.rb-nav-toggle__label{line-height:1}
.rb-header[data-open] .rb-nav-toggle{border-color:var(--rb-cyan);box-shadow:0 0 18px -8px rgba(55,230,255,.9)}
.rb-header[data-open] .rb-nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.rb-header[data-open] .rb-nav-toggle__bars span:nth-child(2){opacity:0}
.rb-header[data-open] .rb-nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 滚动进度 ---------- */
.rb-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  pointer-events:none;
}
.rb-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--rb-cyan),var(--rb-violet));
  box-shadow:0 0 12px rgba(55,230,255,.8);
  transition:width .12s linear;
}

/* ---------- 页脚 ---------- */
.rb-footer{
  position:relative;
  margin-top:clamp(3.5rem,7vw,7rem);
  border-top:1px solid var(--rb-line);
  background:
    linear-gradient(180deg,rgba(11,18,34,.78),rgba(5,7,14,.99) 58%),
    radial-gradient(70% 120% at 12% 0%,rgba(55,230,255,.14),transparent 62%),
    radial-gradient(60% 120% at 88% 8%,rgba(139,92,255,.18),transparent 64%);
}
.rb-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,1.3fr) minmax(0,1fr);
  gap:clamp(1.75rem,4vw,3.5rem);
  padding-block:clamp(2.5rem,5vw,4rem) clamp(1.75rem,3.5vw,2.75rem);
}
.rb-footer__brand{min-width:0}
.rb-footer__logo{
  display:inline-block;
  padding-bottom:.45rem;
  border-bottom:2px solid var(--rb-cyan);
  font-size:clamp(1.25rem,2.2vw,1.7rem);
  font-weight:800;
  letter-spacing:.1em;
  color:var(--rb-ice);
}
.rb-footer__summary{
  margin-top:1rem;
  max-width:34ch;
  font-size:.9rem;
  line-height:1.9;
  color:var(--rb-steel);
}
.rb-footer__cta{margin-top:1.4rem}
.rb-footer__nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(1.25rem,3vw,2.25rem);
}
.rb-footer__group-title{
  font-family:var(--rb-mono);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--rb-cyan);
  padding-bottom:.55rem;
  border-bottom:1px solid var(--rb-line);
}
.rb-footer__list{margin-top:.5rem}
.rb-footer__link{
  display:inline-block;
  padding-block:.34rem;
  font-size:.88rem;
  color:var(--rb-steel);
  transition:color .2s var(--rb-ease),transform .2s var(--rb-ease);
}
.rb-footer__link:hover{color:var(--rb-cyan);transform:translateX(3px)}
.rb-footer__contact{min-width:0}
.rb-footer__fields{margin-top:.75rem}
.rb-footer__field{padding-block:.45rem;border-bottom:1px solid rgba(29,44,71,.7)}
.rb-footer__field dt{
  font-family:var(--rb-mono);
  font-size:.68rem;
  letter-spacing:.16em;
  color:var(--rb-steel);
}
.rb-footer__field dd{
  margin:.15rem 0 0;
  font-size:.88rem;
  line-height:1.7;
  color:var(--rb-ice);
  overflow-wrap:anywhere;
}
.rb-footer__note{
  margin-top:.85rem;
  font-size:.76rem;
  line-height:1.85;
  color:var(--rb-steel);
}
.rb-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.75rem 1.5rem;
  padding-block:1.1rem 1.75rem;
  border-top:1px solid var(--rb-line);
  font-size:.78rem;
  letter-spacing:.05em;
  color:var(--rb-steel);
}
.rb-footer__legal,.rb-footer__icp{font-family:var(--rb-mono)}
.rb-footer__icp{color:var(--rb-cyan-deep)}
.rb-footer__legal-links{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem}
.rb-footer__legal-links .rb-footer__link{font-size:.78rem;padding-block:0}

/* ---------- 面板 ---------- */
.rb-panel{
  position:relative;
  padding:clamp(1.25rem,3vw,2.5rem);
  border:1px solid var(--rb-line);
  background:linear-gradient(180deg,rgba(11,18,34,.94),rgba(5,7,14,.94));
}
.rb-panel::before,
.rb-panel::after{
  content:"";
  position:absolute;
  width:18px;
  height:18px;
  pointer-events:none;
}
.rb-panel::before{top:-1px;left:-1px;border-top:1px solid var(--rb-cyan);border-left:1px solid var(--rb-cyan)}
.rb-panel::after{bottom:-1px;right:-1px;border-bottom:1px solid var(--rb-cyan);border-right:1px solid var(--rb-cyan)}
.rb-panel + .rb-panel{margin-top:clamp(.75rem,1.6vw,1.25rem)}

/* ---------- 媒体容器 ---------- */
.rb-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--rb-line);
  background:
    linear-gradient(135deg,rgba(28,143,168,.22),rgba(11,18,34,.92) 46%,rgba(139,92,255,.2));
}
.rb-media img{width:100%;height:100%;object-fit:cover}
.rb-media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(232,243,255,.06) 0 1px,transparent 1px 4px);
  mix-blend-mode:screen;
}
.rb-media--portrait{aspect-ratio:3/4}
.rb-media--wide{aspect-ratio:21/9}
.rb-media--square{aspect-ratio:1/1}
.rb-media__caption{
  margin-top:.5rem;
  font-family:var(--rb-mono);
  font-size:.7rem;
  letter-spacing:.12em;
  color:var(--rb-steel);
}

/* ---------- 数据组件 ---------- */
.rb-kpi{
  display:block;
  font-family:var(--rb-mono);
  font-size:clamp(2rem,4.4vw,3.6rem);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--rb-lime);
  font-variant-numeric:tabular-nums;
}
.rb-kpi__label{
  display:block;
  margin-top:.5rem;
  font-family:var(--rb-mono);
  font-size:.7rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--rb-steel);
}
.rb-tag{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.25rem .6rem;
  border:1px solid rgba(139,92,255,.7);
  background:rgba(139,92,255,.14);
  color:var(--rb-ice);
  font-size:.72rem;
  letter-spacing:.1em;
  line-height:1.4;
}
.rb-table{font-size:.9rem}
.rb-table th,
.rb-table td{
  padding:.7rem .85rem;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--rb-line);
}
.rb-table thead th{
  font-family:var(--rb-mono);
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--rb-steel);
  background:rgba(29,44,71,.4);
}
.rb-table tbody tr:hover{background:rgba(55,230,255,.05)}
.rb-table td[data-num]{
  font-family:var(--rb-mono);
  color:var(--rb-lime);
  font-variant-numeric:tabular-nums;
}

/* ---------- 面包屑 ---------- */
.rb-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-family:var(--rb-mono);
  font-size:.72rem;
  letter-spacing:.1em;
  color:var(--rb-steel);
}
.rb-breadcrumb__item{display:inline-flex;align-items:center;gap:.45rem}
.rb-breadcrumb__item + .rb-breadcrumb__item::before{
  content:"/";
  color:var(--rb-line);
}
.rb-breadcrumb__item a{color:var(--rb-steel);transition:color .2s var(--rb-ease)}
.rb-breadcrumb__item a:hover{color:var(--rb-cyan)}
.rb-breadcrumb__item[aria-current="page"]{color:var(--rb-cyan)}

/* ---------- 标签页 ---------- */
.rb-tabs__list{
  display:flex;
  flex-wrap:wrap;
  border-bottom:1px solid var(--rb-line);
}
.rb-tabs__btn{
  padding:.72rem 1.15rem;
  font-size:.84rem;
  letter-spacing:.1em;
  color:var(--rb-steel);
  border-bottom:2px solid transparent;
  transition:color .2s var(--rb-ease),border-color .2s var(--rb-ease),background .2s var(--rb-ease);
}
.rb-tabs__btn:hover{color:var(--rb-ice)}
.rb-tabs__btn[aria-selected="true"]{
  color:var(--rb-cyan);
  border-bottom-color:var(--rb-cyan);
  background:linear-gradient(180deg,transparent,rgba(55,230,255,.1));
}
.rb-tabs__panel{padding-block:clamp(1rem,2.4vw,1.75rem)}

/* ---------- 显现 ---------- */
.rb-js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--rb-ease),transform .6s var(--rb-ease);
}
.rb-js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .rb-header__utility{display:none}
}
@media (max-width:1024px){
  .rb-header__descriptor{display:none}
}
@media (max-width:900px){
  .rb-nav-toggle{display:inline-flex}
  .rb-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    z-index:90;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:linear-gradient(180deg,#0B1222,#080D18);
    border-top:1px solid var(--rb-line);
    border-bottom:1px solid var(--rb-line);
    box-shadow:0 26px 44px -26px rgba(0,0,0,.95);
    transition:max-height .34s var(--rb-ease),visibility .34s var(--rb-ease);
  }
  .rb-header[data-open] .rb-nav{max-height:28rem;visibility:visible}
  .rb-nav__list{display:block}
  .rb-nav__item{border-bottom:1px solid rgba(29,44,71,.7)}
  .rb-nav__item:last-child{border-bottom:0}
  .rb-nav__link{
    padding:.85rem 1.25rem;
    font-size:.95rem;
    border-bottom:0;
    border-left:2px solid transparent;
  }
  .rb-nav__link[aria-current="page"]{
    border-bottom-color:transparent;
    border-left-color:var(--rb-cyan);
    background:rgba(55,230,255,.1);
  }
  .rb-span-4,.rb-span-5,.rb-span-6,.rb-span-7,.rb-span-8{grid-column:span 12}
  .rb-footer__top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rb-footer__contact{grid-column:1/-1}
}
@media (max-width:760px){
  .rb-header__meta{order:3;flex:1 1 100%}
  .rb-header__status{font-size:.72rem;white-space:normal}
  .rb-header__actions{margin-left:auto}
  .rb-footer__top{grid-template-columns:minmax(0,1fr)}
  .rb-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .rb-btn{padding:.55rem .8rem;font-size:.78rem;letter-spacing:.06em}
  .rb-header__actions{flex-wrap:wrap;justify-content:flex-end}
  .rb-brand__name{font-size:.98rem}
  .rb-brand__line{font-size:.62rem;letter-spacing:.1em}
  .rb-brand__mark{width:30px;height:30px}
  .rb-footer__nav{grid-template-columns:minmax(0,1fr)}
  .rb-footer__bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .rb-header__pulse{animation:none;box-shadow:none}
  .rb-js [data-reveal]{opacity:1;transform:none}
  .rb-progress__bar{transition:none}
}