:root{
  --ink:#0E1013;
  --ink-2:#1A1A1A;
  --panel:#2E3138;
  --panel-soft:#1E2126;
  --red:#E23A2E;
  --yellow:#F5C518;
  --cyan:#00E5C3;
  --paper:#F4F1EA;
  --gray:#8A9099;
  --wine:#5A1512;
  --teal:#0F3B36;
  --line:rgba(244,241,234,.10);
  --rail:96px;
  --bar:58px;
  --wrap:1180px;
  --edge:clamp(18px,4vw,56px);
  --font-display:"Oswald","Barlow Condensed","Arial Narrow","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,Consolas,"Courier New",monospace;
  --shadow-card:6px 6px 0 rgba(0,0,0,.55);
  --shadow-card-lg:8px 8px 0 var(--red);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  padding-top:var(--bar);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:clamp(15px,.95rem + .2vw,17px);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--yellow);color:#141414}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.01em;
  text-wrap:balance;
}

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

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

.skip-link{
  position:fixed;
  top:-80px;left:12px;
  z-index:300;
  padding:10px 18px;
  background:var(--yellow);
  color:#141414;
  font-family:var(--font-display);
  font-size:14px;
  letter-spacing:.12em;
  border:1px solid #000;
  box-shadow:4px 4px 0 var(--red);
  transition:top .18s ease;
}
.skip-link:focus{top:10px}

/* ---------- 侧边轨道头部 ---------- */
.site-header{position:relative;z-index:80}
.rail{
  position:fixed;
  top:0;bottom:0;left:0;
  width:var(--rail);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:14px 0 16px;
  background:linear-gradient(180deg,#14171B 0%,#0B0D10 100%);
  border-right:1px solid var(--panel);
  box-shadow:inset -3px 0 0 rgba(226,58,46,.5);
  overflow-y:auto;
  overflow-x:hidden;
  scrollbar-width:none;
  z-index:90;
}
.rail::-webkit-scrollbar{width:0;height:0}

.rail__brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  width:100%;
  padding-bottom:14px;
  border-bottom:1px solid var(--panel);
}
.rail__mark{
  display:grid;
  place-items:center;
  width:40px;height:40px;
  background:var(--red);
  color:var(--yellow);
  border:1px solid #000;
  box-shadow:3px 3px 0 rgba(0,0,0,.7);
  font-family:var(--font-display);
  font-size:20px;
  font-weight:700;
  line-height:1;
}
.rail__word{
  writing-mode:vertical-rl;
  font-family:var(--font-display);
  font-size:15px;
  letter-spacing:.42em;
  color:var(--paper);
  line-height:1.1;
}

.rail__toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 12px;
  background:var(--panel-soft);
  border:1px solid var(--panel);
  box-shadow:3px 3px 0 rgba(0,0,0,.55);
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.22em;
  color:var(--paper);
}
.rail__toggle-bars{display:grid;gap:4px;width:18px}
.rail__toggle-bars i{
  display:block;
  height:2px;
  width:100%;
  background:var(--yellow);
  transition:transform .18s ease,opacity .18s ease,width .18s ease;
}
.rail__toggle-bars i:nth-child(2){width:70%}
.site-header[data-open] .rail__toggle-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .rail__toggle-bars i:nth-child(2){opacity:0}
.site-header[data-open] .rail__toggle-bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.rail__nav{
  display:flex;
  flex-direction:column;
  align-items:center;
  width:100%;
  flex:1 1 auto;
  padding-top:8px;
  overflow-y:auto;
  overflow-x:hidden;
  scrollbar-width:none;
}
.rail__nav::-webkit-scrollbar{width:0;height:0}

.rail__list{display:flex;flex-direction:column;align-items:center;width:100%;gap:0}
.rail__list li{width:100%;border-bottom:1px solid rgba(244,241,234,.06)}
.rail__list li:first-child{border-top:1px solid rgba(244,241,234,.06)}
.rail__list a{
  display:flex;
  justify-content:center;
  align-items:center;
  width:100%;
  padding:10px 0;
  writing-mode:vertical-rl;
  font-family:var(--font-display);
  font-size:13px;
  letter-spacing:.24em;
  line-height:1.15;
  color:var(--gray);
  transition:color .18s ease,background .18s ease,box-shadow .18s ease;
}
.rail__list a:hover,
.rail__list a:focus-visible{color:var(--paper);background:rgba(244,241,234,.06)}
.rail__list a[aria-current="page"]{
  color:var(--yellow);
  background:rgba(245,197,24,.08);
  box-shadow:inset 3px 0 0 var(--red);
}

.rail__cta{
  display:block;
  margin-top:auto;
  margin-bottom:6px;
  padding:16px 11px;
  writing-mode:vertical-rl;
  background:var(--yellow);
  color:#141414;
  border:1px solid #000;
  box-shadow:4px 4px 0 var(--red);
  font-family:var(--font-display);
  font-size:13px;
  font-weight:700;
  letter-spacing:.2em;
  line-height:1.1;
  transition:transform .16s ease,box-shadow .16s ease;
}
.rail__cta:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--red)}
.rail__cta:active{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--red)}

.rail__status{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--gray);
}
.rail__status-text{writing-mode:vertical-rl;letter-spacing:.3em}
.rail__pulse{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(0,229,195,.55);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(0,229,195,.55)}
  70%{box-shadow:0 0 0 11px rgba(0,229,195,0)}
  100%{box-shadow:0 0 0 0 rgba(0,229,195,0)}
}

.site-header__scrim{
  position:fixed;
  inset:0;
  background:rgba(6,7,9,.72);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;
  z-index:85;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:linear-gradient(180deg,#12141800%,#121418 0%,#08090B 100%);
  background-color:#0A0B0D;
  border-top:1px solid var(--panel);
  padding-bottom:26px;
}
.site-footer__band{
  height:10px;
  background:linear-gradient(90deg,var(--red) 0 44%,var(--yellow) 44% 76%,var(--cyan) 76% 100%);
}
.site-footer__inner{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--edge);
}
.site-footer__top{padding:clamp(30px,5vw,56px) 0 0;overflow:hidden}
.site-footer__eyebrow{
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--cyan);
}
.site-footer__lede{
  margin-top:14px;
  font-family:var(--font-display);
  font-size:clamp(18px,2.4vw,26px);
  font-weight:400;
  line-height:1.45;
  letter-spacing:.01em;
  color:var(--paper);
  max-width:24ch;
}
.site-footer__watermark{
  margin:clamp(18px,3vw,30px) 0 -.14em;
  font-family:var(--font-display);
  font-size:clamp(46px,12vw,142px);
  line-height:.92;
  letter-spacing:.03em;
  white-space:nowrap;
  color:transparent;
  -webkit-text-stroke:1px rgba(244,241,234,.16);
  user-select:none;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,4vw,44px);
  padding:clamp(26px,4vw,42px) 0;
  margin-top:clamp(20px,3vw,34px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.site-footer__title{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:14px;
  font-family:var(--font-display);
  font-size:12px;
  font-weight:700;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--yellow);
}
.site-footer__title::before{content:"";width:16px;height:2px;background:var(--red);flex:0 0 auto}
.site-footer__list{display:grid;gap:10px;font-size:14px;line-height:1.65}
.site-footer__list a{
  color:#CFCAC0;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.site-footer__list a:hover,
.site-footer__list a:focus-visible{color:var(--yellow);border-bottom-color:var(--yellow)}
.site-footer__list li{color:#B5B0A6}
.site-footer__list--plain li{color:#B5B0A6;font-size:13.5px;word-break:break-word}
.site-footer__list--plain a{color:var(--cyan);border-bottom:1px dashed rgba(0,229,195,.5)}
.site-footer__meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  align-items:baseline;
  justify-content:space-between;
  padding-top:20px;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.7;
  color:var(--gray);
}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.site-footer__legal a{color:var(--gray);border-bottom:1px dashed rgba(138,144,153,.5)}
.site-footer__legal a:hover,
.site-footer__legal a:focus-visible{color:var(--paper);border-bottom-color:var(--paper)}
.site-footer__note{max-width:52ch}

/* ---------- 通用布局与组件 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--edge);
}
.wrap--narrow{max-width:820px}
.section{padding-block:clamp(32px,5.5vw,80px)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--red);flex:0 0 auto}

.lede{
  font-size:clamp(15px,1.7vw,19px);
  line-height:1.8;
  color:#CFCAC0;
  max-width:38ch;
}

.title-xl{
  font-family:var(--font-display);
  font-size:clamp(32px,6vw,74px);
  line-height:.98;
  letter-spacing:-.015em;
}

.section-index{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(52px,9vw,120px);
  font-weight:700;
  line-height:.8;
  letter-spacing:-.03em;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(244,241,234,.3);
  user-select:none;
}

.rule-band{
  height:clamp(10px,1.6vw,16px);
  background:linear-gradient(90deg,var(--wine) 0 60%,var(--red) 60% 83%,var(--yellow) 83% 100%);
}
.rule-band--teal{
  background:linear-gradient(90deg,var(--teal) 0 60%,var(--cyan) 60% 83%,var(--yellow) 83% 100%);
}

.divider{height:1px;border:0;background:var(--line);margin:0}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  background:var(--panel-soft);
  border:1px solid rgba(244,241,234,.26);
  box-shadow:2px 2px 0 rgba(0,0,0,.55);
  color:var(--paper);
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  line-height:1.4;
}
.tag--red{background:var(--red);border-color:#000;box-shadow:2px 2px 0 var(--yellow)}
.tag--yellow{background:var(--yellow);color:#141414;border-color:#000;box-shadow:2px 2px 0 var(--red)}
.tag--cyan{background:transparent;color:var(--cyan);border-color:rgba(0,229,195,.55);box-shadow:2px 2px 0 rgba(0,229,195,.28)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 24px;
  background:var(--paper);
  color:#141414;
  border:1px solid #000;
  box-shadow:5px 5px 0 rgba(0,0,0,.6);
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  line-height:1.2;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 rgba(0,0,0,.6)}
.btn:active{transform:translate(1px,1px);box-shadow:3px 3px 0 rgba(0,0,0,.6)}
.btn--primary{background:var(--red);color:var(--paper);box-shadow:5px 5px 0 var(--yellow)}
.btn--primary:hover{box-shadow:7px 7px 0 var(--yellow)}
.btn--yellow{background:var(--yellow);color:#141414;box-shadow:5px 5px 0 var(--red)}
.btn--yellow:hover{box-shadow:7px 7px 0 var(--red)}
.btn--ghost{
  background:transparent;
  color:var(--paper);
  border-color:rgba(244,241,234,.32);
  box-shadow:5px 5px 0 rgba(244,241,234,.14);
}
.btn--ghost:hover{box-shadow:7px 7px 0 rgba(244,241,234,.2)}
.btn:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}

.card{
  position:relative;
  padding:clamp(18px,2.6vw,28px);
  background:var(--ink-2);
  border:1px solid var(--panel);
  box-shadow:var(--shadow-card);
}
.card--raised{box-shadow:var(--shadow-card-lg)}
.card__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.card__title{
  font-family:var(--font-display);
  font-size:clamp(18px,2.2vw,22px);
  letter-spacing:.01em;
  line-height:1.25;
}
.card__body{color:#C6C1B7;font-size:15px;line-height:1.78}

.panel{
  padding:clamp(16px,2.4vw,24px);
  background:var(--panel);
  border-left:4px solid var(--yellow);
  color:#DCD8CF;
  font-size:15px;
}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:#14171B;
  border:1px solid var(--panel);
  box-shadow:var(--shadow-card);
}
.media>img,.media__img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.68) contrast(1.1) brightness(.94);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(155deg,rgba(226,58,46,.24) 0%,rgba(226,58,46,0) 46%,rgba(245,197,24,.2) 100%);
  pointer-events:none;
  z-index:1;
}
.media__cap{
  position:absolute;
  left:0;bottom:0;
  z-index:2;
  padding:6px 12px;
  background:var(--red);
  color:var(--paper);
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--portrait{aspect-ratio:3/4}
.media--band{aspect-ratio:21/9}

.stat{display:grid;gap:6px}
.stat__num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(40px,7vw,96px);
  line-height:.88;
  letter-spacing:-.03em;
  color:var(--yellow);
}
.stat__label{
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gray);
}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);grid-template-columns:1fr}
.grid--3{grid-template-columns:1fr}
@media (min-width:640px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.grid--3{grid-template-columns:repeat(3,1fr)}}
@media (min-width:980px){
  .grid--7-5{grid-template-columns:7fr 5fr}
  .grid--5-7{grid-template-columns:5fr 7fr}
}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--gray);
}
.crumbs li{display:inline-flex;align-items:center}
.crumbs li:not(:first-child)::before{content:"/";margin-right:8px;color:rgba(138,144,153,.55)}
.crumbs a{color:var(--gray);transition:color .16s ease}
.crumbs a:hover,.crumbs a:focus-visible{color:var(--yellow)}
.crumbs [aria-current="page"]{color:var(--paper)}

.pulse-dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(0,229,195,.55);
  animation:pulse 2.4s ease-out infinite;
  vertical-align:middle;
}

[data-reveal]{transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1)}
html.js-reveal [data-reveal]{opacity:0;transform:translateY(20px)}
html.js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 移动端 / 抽屉 ---------- */
@media (max-width:899px){
  .rail{
    top:0;bottom:auto;right:0;left:0;
    width:100%;
    height:var(--bar);
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:0 var(--edge);
    border-right:0;
    border-bottom:1px solid var(--panel);
    box-shadow:inset 0 -3px 0 rgba(226,58,46,.55);
    overflow:visible;
  }
  .rail__brand{
    flex-direction:row;
    width:auto;
    gap:10px;
    padding-bottom:0;
    border-bottom:0;
  }
  .rail__mark{width:32px;height:32px;font-size:16px;box-shadow:2px 2px 0 rgba(0,0,0,.7)}
  .rail__word{
    writing-mode:horizontal-tb;
    font-size:14px;
    letter-spacing:.2em;
  }
  .rail__toggle{display:flex}
  .rail__status{display:none}
  .rail__nav{
    position:fixed;
    top:0;left:0;
    height:100%;
    width:min(84vw,330px);
    flex:0 0 auto;
    align-items:stretch;
    padding:calc(var(--bar) + 18px) 0 28px;
    background:#121418;
    border-right:1px solid var(--panel);
    box-shadow:14px 0 46px rgba(0,0,0,.7);
    transform:translateX(-102%);
    transition:transform .26s cubic-bezier(.2,.8,.2,1);
    overflow-y:auto;
    z-index:120;
  }
  .site-header[data-open] .rail__nav{transform:translateX(0)}
  .site-header[data-open] .site-header__scrim{opacity:1;visibility:visible}
  .rail__list{align-items:stretch}
  .rail__list li:first-child{border-top:0}
  .rail__list a{
    writing-mode:horizontal-tb;
    justify-content:flex-start;
    padding:16px 22px;
    font-size:17px;
    letter-spacing:.08em;
    color:var(--paper);
    border-bottom:1px solid rgba(244,241,234,.07);
    box-shadow:none;
  }
  .rail__list a[aria-current="page"]{
    color:var(--yellow);
    background:rgba(226,58,46,.14);
    box-shadow:inset 4px 0 0 var(--red);
  }
  .rail__cta{
    writing-mode:horizontal-tb;
    margin:24px 22px 0;
    padding:15px 20px;
    text-align:center;
    letter-spacing:.16em;
  }
  .site-footer__meta{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer__note{max-width:none}
}

@media (min-width:720px){
  .site-footer__grid{grid-template-columns:repeat(3,1fr)}
}

@media (min-width:900px){
  body{padding-top:0;padding-left:var(--rail)}
  .site-header__scrim{display:none}
}

@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]{transition:none}
  html.js-reveal [data-reveal]{opacity:1;transform:none}
}