:root{
  --ink:#061A14;
  --ink-2:#0C2A20;
  --pitch:#14523E;
  --cyan:#3DF5D0;
  --cyan-soft:#A7FFEC;
  --red:#F04E4E;
  --paper:#F7F1E6;
  --paper-mute:#D8D0C0;
  --mute:#5C7268;
  --grid:rgba(167,255,236,.18);
  --grid-soft:rgba(167,255,236,.10);
  --grid-strong:rgba(167,255,236,.38);
  --panel-bg:rgba(12,42,32,.55);
  --font-display:"Barlow Condensed","DIN Condensed","Arial Narrow","Helvetica Neue",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono","SFMono-Regular",ui-monospace,monospace;
  --shell:1320px;
  --gutter:clamp(20px,5vw,72px);
  --header-h:76px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 24px);
}
body{
  margin:0;
  min-height:100vh;
  overflow-x:hidden;
  background:
    radial-gradient(120% 70% at 88% -12%,rgba(20,82,62,.55),transparent 62%),
    radial-gradient(90% 60% at -10% 8%,rgba(61,245,208,.07),transparent 55%),
    var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{font-weight:400;line-height:1.18;letter-spacing:-.01em}
strong,b{font-weight:700}
::selection{background:var(--cyan);color:var(--ink)}

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

.visually-hidden{
  position:absolute;width:1px;height:1px;
  margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);
  white-space:nowrap;border:0;
}

/* ---------- 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(48px,8vw,112px)}
.section--tight{padding-block:clamp(28px,5vw,64px)}

/* ---------- 排版组件 ---------- */
.idx{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.4;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan-soft);
}
.h-hero{
  font-family:var(--font-body);
  font-weight:300;
  font-size:clamp(2.3rem,7vw,5.4rem);
  line-height:1.05;
  letter-spacing:-.035em;
  color:var(--paper);
}
.h-section{
  font-family:var(--font-body);
  font-weight:500;
  font-size:clamp(1.55rem,3.2vw,2.5rem);
  line-height:1.22;
  letter-spacing:-.015em;
  color:var(--paper);
}
.h-card{
  font-family:var(--font-body);
  font-weight:700;
  font-size:clamp(1.05rem,1.7vw,1.3rem);
  line-height:1.45;
  letter-spacing:-.005em;
  color:var(--paper);
}
.lead{
  max-width:62ch;
  font-size:clamp(1rem,1.35vw,1.12rem);
  line-height:1.95;
  color:rgba(247,241,230,.78);
}
.rule{
  height:1px;
  border:0;
  margin:0;
  background:var(--grid);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  min-height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:0;
  font-family:var(--font-body);
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  line-height:1;
  white-space:nowrap;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--solid{
  background:var(--cyan);
  color:var(--ink);
  font-weight:700;
}
.btn--solid:hover{background:var(--cyan-soft)}
.btn--ghost{
  border-color:var(--grid-strong);
  color:var(--cyan-soft);
  background:rgba(6,26,20,.18);
}
.btn--ghost:hover{
  border-color:var(--cyan);
  background:var(--cyan);
  color:var(--ink);
}
.btn--sm{min-height:36px;padding:0 14px;font-size:12px;letter-spacing:.1em}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(247,241,230,.5);
}
.breadcrumbs a{color:rgba(247,241,230,.72);transition:color .2s var(--ease)}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs__sep{color:var(--mute);opacity:.8}
.breadcrumbs [aria-current="page"]{color:var(--cyan-soft)}

/* ---------- 网格 ---------- */
.grid12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}

/* ---------- 面板与数据条 ---------- */
.panel{
  background:var(--panel-bg);
  border:1px solid var(--grid);
  padding:clamp(20px,3vw,32px);
}
.datastrip{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1px;
  border:1px solid var(--grid);
  background:var(--grid);
}
.datastrip__cell{
  background:var(--ink-2);
  padding:18px 20px;
}
.datastrip__label{
  display:block;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(167,255,236,.62);
}
.datastrip__value{
  display:block;
  margin-top:8px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(1.35rem,2.4vw,1.95rem);
  line-height:1;
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  color:var(--cyan);
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 10px;
  border:1px solid var(--grid-strong);
  border-radius:0;
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.6;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan-soft);
}
.tag--live{
  border-color:rgba(240,78,78,.6);
  color:var(--red);
}
.tag--live::before{
  content:"";
  display:block;
  width:6px;height:6px;
  background:var(--red);
  border-radius:50%;
  animation:ab-pulse 1.8s ease-in-out infinite;
}
@keyframes ab-pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.35;transform:scale(.8)}
}

/* ---------- 可展开内容组 ---------- */
.acc{border-top:1px solid var(--grid)}
.acc__item{border-bottom:1px solid var(--grid)}
.acc__trigger{
  display:flex;
  align-items:flex-start;
  gap:clamp(12px,3vw,32px);
  width:100%;
  padding:22px 0;
  text-align:left;
  font-family:var(--font-body);
  font-size:clamp(15px,1.9vw,18px);
  font-weight:500;
  line-height:1.6;
  color:var(--paper);
  transition:color .22s var(--ease);
}
.acc__trigger:hover{color:var(--cyan)}
.acc__num{
  flex:0 0 auto;
  padding-top:5px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--mute);
  transition:color .22s var(--ease);
}
.acc__trigger:hover .acc__num,
.acc__trigger[aria-expanded="true"] .acc__num{color:var(--cyan)}
.acc__label{flex:1 1 auto}
.acc__icon{
  position:relative;
  flex:0 0 auto;
  width:14px;height:14px;
  margin-top:8px;
}
.acc__icon::before,
.acc__icon::after{
  content:"";
  position:absolute;
  background:var(--cyan);
  transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.acc__icon::before{left:0;right:0;top:50%;height:1px;margin-top:-.5px}
.acc__icon::after{top:0;bottom:0;left:50%;width:1px;margin-left:-.5px}
.acc__trigger[aria-expanded="true"] .acc__icon::after{transform:scaleY(0);opacity:0}
.acc__panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .34s var(--ease);
}
.acc__panel[data-open="true"]{grid-template-rows:1fr}
.acc__panel-inner{
  min-height:0;
  overflow:hidden;
  max-width:70ch;
  padding-right:clamp(0px,3vw,28px);
  font-size:15px;
  line-height:1.95;
  color:rgba(247,241,230,.76);
}
.acc__panel-inner > *{margin-bottom:14px}
.acc__panel-inner > *:last-child{margin-bottom:0}
.acc__panel[data-open="true"] .acc__panel-inner{padding-bottom:26px}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  border:0;
}
.media__frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--grid);
  background:
    radial-gradient(120% 100% at 18% 0%,rgba(61,245,208,.16),transparent 58%),
    linear-gradient(158deg,var(--pitch),var(--ink-2) 72%);
}
.media__frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(var(--grid-soft) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-soft) 1px,transparent 1px);
  background-size:100% 48px,48px 100%;
  pointer-events:none;
}
.media__frame img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--wide .media__frame{aspect-ratio:21/9}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}
.media__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  line-height:1.7;
  color:rgba(247,241,230,.55);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-120px;
  z-index:300;
  display:inline-block;
  padding:12px 18px;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:10px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(6,26,20,.92),rgba(6,26,20,.42) 68%,rgba(6,26,20,0));
  border-bottom:1px solid transparent;
  transition:background-color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,26,20,.95);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--grid);
  box-shadow:0 24px 48px -38px rgba(0,0,0,.95);
}
.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  min-height:var(--header-h);
}
.scroll-meter{
  position:absolute;
  left:calc(var(--gutter) * -1);
  right:calc(var(--gutter) * -1);
  bottom:-1px;
  height:1px;
  overflow:hidden;
  pointer-events:none;
}
.scroll-meter__bar{
  display:block;
  width:0;
  height:100%;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(61,245,208,.85);
  transition:width .12s linear;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  order:1;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border:1px solid var(--cyan);
  color:var(--cyan);
  font-family:var(--font-display);
  font-weight:800;
  font-size:20px;
  line-height:1;
  letter-spacing:.02em;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.brand:hover .brand__mark{background:var(--cyan);color:var(--ink)}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{
  font-size:15px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--paper);
}
.brand__line{
  margin-top:3px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--cyan-soft);
  opacity:.78;
}

/* 主导航 */
.site-nav{
  order:2;
  margin-inline:auto;
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.8vw,26px);
  counter-reset:navidx;
}
.site-nav__item{
  counter-increment:navidx;
  position:relative;
}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:10px 1px 11px;
  font-size:14px;
  font-weight:400;
  letter-spacing:.02em;
  color:rgba(247,241,230,.76);
  transition:color .22s var(--ease);
}
.site-nav__link::before{
  content:counter(navidx,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.1em;
  color:var(--mute);
  transition:color .22s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:4px;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover::before{color:var(--cyan-soft)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--cyan)}
.site-nav__link[aria-current="page"]::before{color:var(--cyan)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* 右侧信息区 */
.header-aside{
  order:3;
  display:flex;
  align-items:center;
  gap:16px;
  flex:0 0 auto;
}
.header-aside__note{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--cyan-soft);
  opacity:.6;
  white-space:nowrap;
}

/* 移动端按钮 */
.nav-toggle{
  order:4;
  display:none;
  align-items:center;
  gap:9px;
  min-height:42px;
  padding:0 13px;
  border:1px solid var(--grid-strong);
  border-radius:0;
  color:var(--paper);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:16px;
  height:12px;
}
.nav-toggle__bars span{
  display:block;
  height:1px;
  width:100%;
  background:currentColor;
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){
  transform:translateY(2.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){
  transform:translateY(-2.5px) rotate(-45deg);
}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,132px);
  padding-top:clamp(40px,6vw,76px);
  background:linear-gradient(180deg,rgba(12,42,32,.42),rgba(6,26,20,0) 42%),var(--ink);
  border-top:1px solid var(--grid);
  color:var(--paper);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan) 22%,rgba(61,245,208,.35) 62%,transparent);
  opacity:.65;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1.05fr) minmax(0,1.1fr);
  gap:clamp(28px,5vw,68px);
  padding-bottom:clamp(30px,4.5vw,54px);
}
.footer-brand__mark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(2.1rem,5vw,3.1rem);
  line-height:.95;
  letter-spacing:-.02em;
  color:var(--paper);
}
.footer-brand__mark span{color:var(--cyan)}
.footer-brand__summary{
  margin-top:16px;
  max-width:34ch;
  font-size:14px;
  line-height:1.9;
  color:rgba(247,241,230,.72);
}
.footer-brand__meta{
  margin-top:20px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--cyan-soft);
  opacity:.72;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:clamp(24px,4vw,52px);
}
.footer-links__group{min-width:112px}
.footer-links__title{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(167,255,236,.6);
}
.footer-links__list{
  margin-top:16px;
  display:grid;
  gap:10px;
}
.footer-links__link{
  display:inline-block;
  font-size:14px;
  line-height:1.6;
  color:rgba(247,241,230,.78);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-links__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.footer-contact__title{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(167,255,236,.6);
}
.footer-contact__list{
  margin-top:16px;
  display:grid;
  gap:14px;
}
.footer-contact__item{display:block}
.footer-contact__label{
  display:block;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--mute);
  text-transform:uppercase;
}
.footer-contact__value{
  display:block;
  margin-top:3px;
  font-size:14px;
  line-height:1.7;
  color:rgba(247,241,230,.82);
  word-break:break-word;
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  padding:20px 0 30px;
  border-top:1px solid var(--grid-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  line-height:1.8;
  color:rgba(247,241,230,.55);
}
.footer-legal__icp{color:rgba(247,241,230,.45)}
.footer-legal__links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  margin-left:auto;
}
.footer-legal__link{
  color:rgba(247,241,230,.62);
  border-bottom:1px solid transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-legal__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .header-aside__note{display:none}
}

@media (max-width:1023px){
  :root{--header-h:64px}
  .grid12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-4,.col-5,.col-6,.col-7,.col-8,.col-12{grid-column:span 6}

  .nav-toggle{display:inline-flex}
  .header-aside{margin-left:auto;margin-right:14px}
  .brand__mark{width:36px;height:36px;font-size:18px}

  .site-nav{
    order:5;
    position:absolute;
    top:100%;
    left:calc(var(--gutter) * -1);
    right:calc(var(--gutter) * -1);
    margin:0;
    display:none;
    flex-direction:column;
    padding:6px var(--gutter) 22px;
    background:rgba(8,30,23,.985);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--grid);
    border-bottom:1px solid var(--grid-strong);
    box-shadow:0 44px 70px -46px #000;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .site-nav[data-open="true"]{display:flex}
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .site-nav__item{border-bottom:1px solid var(--grid-soft)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{
    width:100%;
    padding:15px 0;
    font-size:16px;
    color:rgba(247,241,230,.9);
  }
  .site-nav__link::after{display:none}
  .site-nav__link::before{font-size:10px}

  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:720px){
  .grid12{grid-template-columns:minmax(0,1fr)}
  .col-4,.col-5,.col-6,.col-7,.col-8,.col-12{grid-column:1 / -1}

  .footer-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .footer-links{gap:28px}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:8px;padding-bottom:26px}
  .footer-legal__links{margin-left:0}
  .brand__line{display:none}
  .btn{padding:0 16px}
}

@media (max-width:560px){
  .header-cta{display:none}
  .header-aside{margin-right:10px}
  .nav-toggle{padding:0 11px}
  .nav-toggle__label{display:none}
  .datastrip__cell{padding:14px 16px}
  .media__caption{font-size:10px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}