:root{
  --ink:#061C16;
  --ink-2:#0C2A21;
  --board:#16453A;
  --cyan:#3BF0C8;
  --cyan-soft:#8FFCE2;
  --orange:#FF7A3D;
  --text:#E8F5F0;
  --muted:#93B3AA;
  --shadow:#020D0A;
  --edge:#1E5A4C;
  --rail-w:272px;
  --bar-h:62px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(22,69,58,.55) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(22,69,58,.32) 1px,transparent 1px);
  background-size:96px 96px;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--sans);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.16;
  color:var(--text);
  margin:0 0 .55em;
}
h1{font-size:clamp(32px,5.4vw,68px)}
h2{font-size:clamp(24px,3.4vw,42px)}
h3{font-size:clamp(19px,2.2vw,26px)}
h4{font-size:clamp(16px,1.6vw,19px)}
p{margin:0 0 1em}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--cyan-soft)}
ul,ol{margin:0 0 1em;padding-left:1.15em}
img,svg{max-width:100%}
img{display:block}
button{font:inherit;color:inherit}
::selection{background:var(--cyan);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.foot-mono{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted)}

/* ============ skip link ============ */
.skip-link{
  position:fixed;
  top:10px;left:10px;
  z-index:140;
  padding:10px 16px;
  background:var(--cyan);
  color:var(--ink);
  font-size:13px;font-weight:700;
  border-radius:2px;
  transform:translateY(-220%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:none;color:var(--ink)}

/* ============ 侧边数据轴轨道 ============ */
.site-rail{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  display:flex;
  z-index:80;
  background:linear-gradient(180deg,var(--ink-2) 0%,#0A231C 58%,var(--ink) 100%);
  border-right:1px solid var(--edge);
}
.rail-scale{
  position:relative;
  flex:0 0 30px;
  width:30px;
  overflow:hidden;
  border-right:1px solid rgba(22,69,58,.9);
  background-image:
    repeating-linear-gradient(to bottom,transparent 0 11px,rgba(59,240,200,.16) 11px 12px),
    repeating-linear-gradient(to bottom,transparent 0 59px,rgba(59,240,200,.4) 59px 60px);
}
.rail-scale__label{
  position:absolute;
  left:50%;bottom:16px;
  transform:translateX(-50%);
  writing-mode:vertical-rl;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.34em;
  color:var(--muted);
  opacity:.75;
}
.rail-scale__progress{
  position:absolute;
  inset:0 0 auto 0;
  height:100%;
  transform:scaleY(0);
  transform-origin:top center;
  background:linear-gradient(180deg,rgba(59,240,200,.55),rgba(59,240,200,.06));
}
.rail-inner{
  flex:1 1 auto;
  min-width:0;
  display:flex;
  flex-direction:column;
  padding:22px 18px 18px;
  overflow-y:auto;
  overflow-x:hidden;
}

/* ============ 品牌 ============ */
.brand{
  display:grid;
  grid-template-columns:28px minmax(0,1fr);
  column-gap:11px;
  align-items:center;
  padding-bottom:16px;
  border-bottom:1px solid var(--edge);
  text-decoration:none;
  color:var(--text);
}
.brand:hover{color:var(--cyan-soft)}
.brand__mark{
  grid-row:1 / 3;
  position:relative;
  width:28px;height:28px;
  border:1px solid var(--cyan);
  background:linear-gradient(135deg,rgba(59,240,200,.2),transparent 62%);
}
.brand__mark::before{
  content:"";
  position:absolute;
  top:6px;left:6px;right:6px;
  height:1px;
  background:var(--cyan);
}
.brand__mark::after{
  content:"";
  position:absolute;
  left:6px;right:6px;bottom:6px;
  height:6px;
  background:repeating-linear-gradient(to right,var(--cyan) 0 2px,transparent 2px 5px);
  opacity:.85;
}
.brand__name{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
}
.brand__tag{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  line-height:1.4;
}

/* ============ 导航按钮 ============ */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 11px;
  background:transparent;
  border:1px solid var(--edge);
  color:var(--cyan);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.16em;
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(59,240,200,.08)}
.nav-toggle__icon{
  position:relative;
  flex:0 0 auto;
  width:16px;height:10px;
}
.nav-toggle__icon::before,
.nav-toggle__icon::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:1px;
  background:currentColor;
  transition:transform .25s var(--ease),top .25s var(--ease),bottom .25s var(--ease);
}
.nav-toggle__icon::before{top:0}
.nav-toggle__icon::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before{top:50%;transform:translateY(-50%) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after{bottom:50%;transform:translateY(50%) rotate(-45deg)}

/* ============ 主导航 ============ */
.site-nav{
  display:flex;
  flex-direction:column;
  padding-top:16px;
}
.site-nav__head{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 10px;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--muted);
}
.site-nav__head-k{
  padding:2px 6px;
  border:1px solid var(--edge);
  color:var(--cyan);
  letter-spacing:.14em;
}
.site-nav__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.site-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 10px 9px 14px;
  border-left:2px solid transparent;
  color:var(--muted);
  font-size:15px;
  letter-spacing:.02em;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:14px;right:0;bottom:0;
  height:1px;
  background:var(--edge);
  opacity:.55;
}
.site-nav__link:hover,
.site-nav__link:focus-visible{
  color:var(--cyan-soft);
  background:rgba(59,240,200,.06);
  border-left-color:var(--cyan);
  transform:translateX(2px);
}
.site-nav__link[aria-current="page"]{
  color:var(--cyan);
  border-left-color:var(--orange);
  background:linear-gradient(90deg,rgba(255,122,61,.16),transparent 72%);
}
.site-nav__no{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  opacity:.72;
  flex:0 0 auto;
}
.site-nav__label{font-weight:600;letter-spacing:.02em}

/* ============ 轨道数据维度 ============ */
.rail-meta{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--edge);
}
.rail-meta__title{
  margin:0 0 9px;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--muted);
}
.rail-meta__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:7px;
}
.rail-meta__list li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.rail-meta__list li::before{
  content:"";
  flex:0 0 auto;
  width:5px;height:5px;
  background:var(--cyan);
  transform:rotate(45deg);
  opacity:.85;
}

/* ============ 页脚 ============ */
.site-foot{
  position:relative;
  margin-top:clamp(44px,6vw,92px);
  border-top:1px solid var(--edge);
  background:linear-gradient(180deg,rgba(12,42,33,.72),var(--shadow));
}
.site-foot::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:6px;
  background-image:repeating-linear-gradient(to right,rgba(59,240,200,.34) 0 1px,transparent 1px 24px);
}
.foot-top{
  display:grid;
  grid-template-columns:minmax(220px,1.15fr) repeat(4,minmax(0,1fr));
  gap:clamp(18px,2.4vw,38px);
  max-width:1360px;
  margin:0 auto;
  padding:clamp(30px,4vw,56px) clamp(18px,3vw,40px);
}
.foot-brand__name{
  margin:0 0 10px;
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
}
.foot-brand__line{
  margin:0 0 14px;
  max-width:34ch;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}
.foot-brand__ver{
  display:flex;
  flex-wrap:wrap;
  gap:8px 14px;
  margin:0;
}
.foot-brand__ver .foot-mono{
  padding:3px 8px;
  border:1px solid var(--edge);
  background:rgba(22,69,58,.3);
}
.foot-col__title{
  margin:0 0 12px;
  padding-bottom:8px;
  border-bottom:1px solid var(--edge);
  font-family:var(--mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.foot-col__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:9px;
  font-size:14px;
  color:var(--muted);
}
.foot-col__list a{
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-col__list a:hover,
.foot-col__list a:focus-visible{
  color:var(--cyan-soft);
  border-bottom-color:var(--cyan);
}
.foot-col__list--plain li{
  display:flex;
  flex-direction:column;
  gap:2px;
  color:var(--text);
  font-size:13.5px;
  line-height:1.6;
  word-break:break-word;
}
.foot-k{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  opacity:.85;
}
.foot-legal{
  border-top:1px solid var(--edge);
  background:rgba(2,13,10,.55);
}
.foot-legal__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  max-width:1360px;
  margin:0 auto;
  padding:16px clamp(18px,3vw,40px);
}
.foot-legal__copy{
  margin:0;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.foot-legal__links{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
  margin:0;padding:0;
}
.foot-legal__links a{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.foot-legal__links a:hover{color:var(--cyan)}

/* ============ 布局与通用组件 ============ */
.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 clamp(18px,3vw,40px);
}
.crumbs{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.crumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;padding:0;
}
.crumbs li{display:flex;align-items:center;gap:8px;color:var(--muted)}
.crumbs li + li::before{content:"/";color:var(--board)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:11px 18px;
  border:1px solid var(--cyan);
  background:rgba(59,240,200,.06);
  color:var(--cyan);
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:hover{
  transform:translateY(-2px);
  background:rgba(59,240,200,.14);
  color:var(--cyan-soft);
  box-shadow:0 6px 0 -2px rgba(59,240,200,.18);
}
.btn--signal{
  border-color:var(--orange);
  background:rgba(255,122,61,.08);
  color:var(--orange);
}
.btn--signal:hover{
  background:rgba(255,122,61,.16);
  color:#FFB08A;
  box-shadow:0 6px 0 -2px rgba(255,122,61,.2);
}
.btn--ghost{
  border-color:var(--edge);
  background:transparent;
  color:var(--text);
}
.btn--ghost:hover{
  border-color:var(--cyan);
  background:rgba(59,240,200,.06);
  color:var(--cyan-soft);
}
.panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--edge);
  box-shadow:inset 0 0 0 1px rgba(59,240,200,.05);
  padding:clamp(16px,2.2vw,26px);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  border:1px solid var(--edge);
  background:rgba(22,69,58,.35);
  color:var(--muted);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.12em;
  white-space:nowrap;
}
.tag--live{color:var(--cyan);border-color:rgba(59,240,200,.45)}
.tag--alert{color:var(--orange);border-color:rgba(255,122,61,.45);background:rgba(255,122,61,.08)}
.kpi{display:flex;flex-direction:column;gap:5px}
.kpi__num{
  font-family:var(--mono);
  font-size:clamp(30px,5vw,54px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.kpi__label{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
}
.grid{
  display:grid;
  gap:1px;
  background:var(--edge);
  border:1px solid var(--edge);
}
.grid > *{
  background:var(--ink);
  padding:clamp(14px,2vw,22px);
}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(196px,1fr))}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px 16px;
  margin-bottom:clamp(18px,2.6vw,30px);
  padding-bottom:12px;
  border-bottom:1px solid var(--edge);
}
.section-head__no{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--orange);
}
.section-head__title{
  margin:0;
  font-size:clamp(22px,3vw,34px);
}
.rule{height:1px;border:0;margin:0;background:var(--edge)}
.rule--scale{height:6px;background:repeating-linear-gradient(to right,var(--edge) 0 1px,transparent 1px 16px)}

/* ============ 视觉/图像容器 ============ */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--edge);
  aspect-ratio:16 / 9;
  background:
    radial-gradient(120% 120% at 18% 0%,rgba(59,240,200,.14),transparent 62%),
    linear-gradient(160deg,var(--ink-2),var(--ink));
}
.media img,
.media > svg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--wide{aspect-ratio:21 / 9}
.media--tall{aspect-ratio:4 / 5}
.media--square{aspect-ratio:1 / 1}
.media__grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(59,240,200,.09) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(59,240,200,.09) 1px,transparent 1px);
  background-size:48px 48px;
}
.media__cap{
  position:absolute;
  left:0;bottom:0;
  padding:8px 11px;
  border-top:1px solid var(--edge);
  border-right:1px solid var(--edge);
  background:rgba(2,13,10,.74);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--muted);
}

/* ============ 显现动效 ============ */
[data-reveal]{opacity:1;transform:none}
.js-on [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js-on [data-reveal].is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  .site-nav{flex:1 1 auto}
}
@media (max-width:1023px){
  body{padding-top:var(--bar-h)}
  .site-rail{
    right:0;bottom:auto;
    width:auto;
    height:var(--bar-h);
    flex-direction:row;
    align-items:center;
    border-right:0;
    border-bottom:1px solid var(--edge);
    background:var(--ink-2);
  }
  .rail-scale{display:none}
  .rail-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:0 14px;
    overflow:visible;
  }
  .brand{
    grid-template-columns:24px minmax(0,1fr);
    column-gap:10px;
    padding-bottom:0;
    border-bottom:0;
    flex:0 1 auto;
  }
  .brand__name{font-size:16px}
  .brand__tag{display:none}
  .nav-toggle{display:inline-flex;order:3}
  .site-nav{
    position:fixed;
    top:var(--bar-h);
    left:0;
    width:min(86vw,320px);
    height:calc(100vh - var(--bar-h));
    height:calc(100dvh - var(--bar-h));
    flex-direction:column;
    padding:18px 16px;
    background:var(--ink-2);
    border-right:1px solid var(--edge);
    overflow-y:auto;
    z-index:90;
    transform:translateX(-102%);
    visibility:hidden;
    transition:transform .3s var(--ease),visibility .3s var(--ease);
  }
  .site-nav[data-open]{
    transform:none;
    visibility:visible;
  }
  .rail-meta{display:none}
  .foot-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:619px){
  .foot-top{grid-template-columns:1fr}
  .foot-legal__inner{flex-direction:column;align-items:flex-start}
}

/* ============ 可访问性偏好 ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal],
  .js-on [data-reveal]{opacity:1;transform:none}
}