:root{
  --ink:#050F0D;
  --stand:#0A2420;
  --stand-soft:#0D2C27;
  --grid:#163B35;
  --cyan:#38F2C4;
  --lamp:#B8FF57;
  --ref:#FF5A36;
  --paper:#F3F8F0;
  --mist:#A8C4BC;
  --indigo:#241A3D;
  --wine:#3D1722;
  --dex:#2D7DFF;
  --font-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;
  --shadow-hard:8px 8px 0 rgba(0,0,0,.45);
  --shadow-soft:0 18px 48px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bar-h:64px;
  --wrap-max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;min-height:100vh;
  background:var(--ink);color:var(--paper);
  font-family:var(--font-body);font-size:17px;line-height:1.8;font-weight:400;
  letter-spacing:.01em;overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit}
a{color:var(--cyan);text-decoration:none}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:2px}
::selection{background:var(--cyan);color:var(--ink)}
.wrap{width:100%;max-width:var(--wrap-max);margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}

/* ---- skip link ---- */
.skip{
  position:fixed;left:16px;top:-120px;z-index:200;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 18px;background:var(--cyan);color:var(--ink);
  font-family:var(--font-body);font-weight:700;font-size:14px;
  border:2px solid var(--ink);box-shadow:4px 4px 0 rgba(0,0,0,.6);
  transition:top .18s var(--ease);
}
.skip:focus{top:14px}

/* ---- command bar ---- */
.cmdbar{
  position:sticky;top:0;z-index:90;
  background:linear-gradient(180deg,rgba(5,15,13,.98) 0%,rgba(10,36,32,.97) 100%);
  border-bottom:1px solid var(--grid);
  transition:box-shadow .22s var(--ease);
}
.cmdbar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(90deg,transparent 0%,rgba(56,242,196,.07) 45%,transparent 90%);
}
.cmdbar.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.55)}
.cmdbar__grid{
  position:relative;display:flex;align-items:center;
  gap:clamp(10px,1.6vw,24px);min-height:var(--bar-h);
}

/* brand */
.brand-mark{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  color:var(--paper);text-decoration:none;
}
.brand-mark__index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:26px;padding:0 6px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.14em;
  color:var(--cyan);background:rgba(56,242,196,.08);
  border:1px solid rgba(56,242,196,.45);
}
.brand-mark__name{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(18px,2vw,23px);letter-spacing:-.01em;line-height:1;
  white-space:nowrap;
}
.brand-mark__rule{
  width:1px;height:22px;background:var(--grid);display:inline-block;
}
.brand-mark:hover .brand-mark__name{color:var(--cyan)}

/* nav toggle */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;background:rgba(10,36,32,.9);
  border:1px solid var(--grid);color:var(--paper);
  font-size:13px;font-weight:700;letter-spacing:.04em;cursor:pointer;
  transition:border-color .18s,background .18s,color .18s;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars i{
  display:block;height:2px;background:var(--cyan);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle__bars i:nth-child(2){width:11px}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* nav */
.cmdbar__panel{display:contents}
.nav-index__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-index__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 10px;color:var(--mist);font-size:14px;font-weight:500;
  border:1px solid transparent;
  transition:color .18s,background .18s,border-color .18s;
}
.nav-index__link:hover{color:var(--paper);background:rgba(56,242,196,.07);border-color:var(--grid)}
.nav-index__num{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;
  color:rgba(168,196,188,.65);
  transition:color .18s;
}
.nav-index__link[aria-current="page"]{
  background:var(--cyan);border-color:var(--cyan);
  color:var(--ink);font-weight:700;
}
.nav-index__link[aria-current="page"] .nav-index__num{color:rgba(5,15,13,.7)}
.nav-index__cta{display:none}

/* actions */
.cmdbar__actions{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
}
.refresh-pill{
  display:inline-flex;align-items:center;gap:8px;
  margin:0;padding:6px 10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  color:var(--lamp);background:rgba(184,255,87,.07);
  border:1px solid rgba(184,255,87,.32);white-space:nowrap;
}
.refresh-pill__dot{
  width:7px;height:7px;flex:0 0 auto;background:var(--lamp);
  box-shadow:0 0 0 3px rgba(184,255,87,.16);
  animation:kt-blink 2.6s ease-in-out infinite;
}
@keyframes kt-blink{
  0%,100%{opacity:1;box-shadow:0 0 0 3px rgba(184,255,87,.16)}
  50%{opacity:.55;box-shadow:0 0 0 5px rgba(184,255,87,.06)}
}

/* progress */
.cmdbar__progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(22,59,53,.7);overflow:hidden;pointer-events:none;
}
.cmdbar__progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--lamp));
  transition:width .1s linear;
}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  font-family:var(--font-body);font-size:14px;font-weight:700;line-height:1.2;
  text-decoration:none;cursor:pointer;
  border:1px solid var(--grid);background:var(--stand);color:var(--paper);
  box-shadow:4px 4px 0 rgba(0,0,0,.5);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s,color .18s,border-color .18s;
}
.btn:hover{transform:translate(-1px,-1px);box-shadow:6px 6px 0 rgba(0,0,0,.55)}
.btn:active{transform:translate(1px,1px);box-shadow:2px 2px 0 rgba(0,0,0,.5)}
.btn--hot{background:var(--ref);border-color:var(--ref);color:var(--ink);box-shadow:4px 4px 0 rgba(56,242,196,.28)}
.btn--hot:hover{background:#ff6f4f;box-shadow:6px 6px 0 rgba(56,242,196,.34)}
.btn--cyan{background:var(--cyan);border-color:var(--cyan);color:var(--ink);box-shadow:4px 4px 0 rgba(0,0,0,.45)}
.btn--ghost{background:transparent;border-color:var(--cyan);color:var(--cyan);box-shadow:none}
.btn--ghost:hover{background:rgba(56,242,196,.1);box-shadow:none}
.cmdbar__cta{padding:9px 14px;font-size:13px}

/* ---- shared type & layout ---- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);display:inline-block}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px 28px;padding-bottom:14px;border-bottom:1px solid var(--grid);
}
.section-head__title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(26px,3.4vw,38px);line-height:1.1;letter-spacing:-.015em;
}
.section-head__meta{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);
}
.rule{height:1px;border:0;background:var(--grid);margin-block:clamp(28px,4vw,48px)}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--mist);
}
.crumb a{color:var(--mist);text-decoration:none;transition:color .18s}
.crumb a:hover{color:var(--cyan)}
.crumb__sep{color:rgba(22,59,53,1)}
.crumb [aria-current="page"]{color:var(--paper)}
.stat{display:grid;gap:6px}
.stat__num{
  font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(42px,7vw,88px);line-height:.95;letter-spacing:-.045em;color:var(--cyan);
}
.stat__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mist);
}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,1.6vw,24px)}
.prose{max-width:72ch;font-size:17px;line-height:1.8;color:rgba(243,248,240,.9)}
.prose > * + *{margin-top:1.05em}
.prose h2{font-family:var(--font-display);font-weight:900;font-size:clamp(24px,2.6vw,32px);line-height:1.15;color:var(--paper);letter-spacing:-.01em}
.prose h3{font-size:22px;line-height:1.3;color:var(--paper);font-weight:700}
.prose strong{color:var(--paper);font-weight:700}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}

/* ---- chips ---- */
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;cursor:pointer;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--mist);background:rgba(10,36,32,.7);
  border:1px solid var(--grid);
  transition:color .18s,border-color .18s,background .18s;
}
.chip:hover{border-color:var(--cyan);color:var(--cyan)}
.chip[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--ink);font-weight:700}

/* ---- expandable groups ---- */
.expand{display:grid;border-top:1px solid var(--grid)}
.expand__item{border-bottom:1px solid var(--grid)}
.expand__trigger{
  display:flex;align-items:center;gap:clamp(10px,2vw,20px);
  width:100%;padding:18px 4px;text-align:left;cursor:pointer;
  background:transparent;border:0;color:var(--paper);
  transition:background .18s,color .18s;
}
.expand__trigger:hover{background:rgba(56,242,196,.06)}
.expand__trigger[aria-expanded="true"]{color:var(--cyan)}
.expand__index{
  flex:0 0 auto;min-width:2.6em;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--mist);
}
.expand__trigger[aria-expanded="true"] .expand__index{color:var(--lamp)}
.expand__label{flex:1 1 auto;font-size:clamp(16px,1.5vw,19px);font-weight:700;line-height:1.45}
.expand__sign{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  border:1px solid var(--grid);background:rgba(10,36,32,.6);
}
.expand__trigger:hover .expand__sign{border-color:var(--cyan)}
.expand__sign::before,.expand__sign::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--cyan);transform:translate(-50%,-50%);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.expand__sign::before{width:10px;height:1.5px}
.expand__sign::after{width:1.5px;height:10px}
.expand__trigger[aria-expanded="true"] .expand__sign::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.expand__panel{overflow:hidden}
.expand__body{
  max-width:72ch;padding:0 4px 22px calc(2.6em + clamp(10px,2vw,20px));
  color:var(--mist);font-size:15.5px;line-height:1.8;
}
.expand__body > * + *{margin-top:.8em}

/* ---- media frames ---- */
.media-frame{
  position:relative;display:block;overflow:hidden;isolation:isolate;
  aspect-ratio:16/10;
  background:linear-gradient(150deg,var(--stand-soft),var(--ink));
  border:1px solid var(--grid);box-shadow:var(--shadow-hard);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05) contrast(1.04)}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,15,13,0) 42%,rgba(5,15,13,.8) 100%);
}
.media-frame__ph{
  display:grid;place-items:center;height:100%;padding:20px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:rgba(168,196,188,.7);text-align:center;
  background-image:
    linear-gradient(to right,rgba(22,59,53,.65) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(22,59,53,.65) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame__tag{
  position:absolute;z-index:2;left:0;bottom:0;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;background:var(--cyan);color:var(--ink);
  font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.14em;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--hot{border-color:var(--ref);box-shadow:8px 8px 0 rgba(255,90,54,.26)}
.media-frame--hot .media-frame__tag{background:var(--ref);color:var(--ink)}

/* ---- footer ---- */
.foot{
  position:relative;margin-top:clamp(64px,9vw,120px);
  background:var(--ink);border-top:1px solid var(--grid);overflow:hidden;
}
.foot::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(22,59,53,.42) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(22,59,53,.42) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.foot__inner{position:relative;padding-block:clamp(40px,6vw,72px) 28px}
.foot__top{display:grid;gap:clamp(28px,5vw,48px);grid-template-columns:minmax(0,1fr)}
.foot__brand{display:grid;gap:10px;align-content:start}
.foot__mark{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(30px,4.4vw,46px);line-height:1;letter-spacing:-.02em;
  color:var(--paper);
}
.foot__line{font-size:14px;color:var(--mist);letter-spacing:.02em}
.foot__status{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--lamp);
}
.dot{
  width:7px;height:7px;flex:0 0 auto;background:var(--lamp);
  box-shadow:0 0 0 3px rgba(184,255,87,.16);
}
.foot__cols{display:grid;gap:clamp(20px,3vw,32px);grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.foot__col{display:grid;gap:12px;align-content:start}
.foot__col-title{
  font-family:var(--font-mono);font-size:11px;font-weight:700;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);
  padding-bottom:8px;border-bottom:1px solid var(--grid);
}
.foot__list{display:grid;gap:9px}
.foot__list a{
  display:inline-block;color:var(--mist);font-size:15px;line-height:1.5;
  border-bottom:1px solid transparent;transition:color .18s,border-color .18s;
}
.foot__list a:hover{color:var(--cyan);border-bottom-color:rgba(56,242,196,.5)}
.foot__contact{
  display:grid;gap:8px;
  margin-top:clamp(28px,4vw,44px);padding-top:22px;
  border-top:1px dashed var(--grid);
}
.foot__contact-row{
  display:flex;flex-wrap:wrap;gap:6px 14px;
  font-family:var(--font-mono);font-size:13px;color:var(--paper);
}
.foot__contact-label{
  min-width:5.4em;color:var(--mist);letter-spacing:.08em;
}
.foot__meta{
  display:flex;flex-wrap:wrap;gap:8px 28px;justify-content:space-between;align-items:baseline;
  margin-top:clamp(24px,3vw,36px);padding-top:18px;
  border-top:1px solid var(--grid);
}
.foot__legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:rgba(168,196,188,.75)}
.foot__note{
  flex:1 1 320px;min-width:0;
  font-size:12.5px;line-height:1.7;color:rgba(168,196,188,.6);
}

/* ---- tablet ---- */
@media (min-width:720px){
  .foot__top{grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:clamp(32px,5vw,64px)}
  .foot__contact{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}
}

/* ---- mobile nav ---- */
@media (max-width:959px){
  .cmdbar__grid{justify-content:space-between;min-height:58px;gap:12px}
  .nav-toggle{display:inline-flex}
  .brand-mark__rule,.brand-mark__index{display:none}
  .cmdbar__panel{
    position:absolute;top:100%;left:0;right:0;display:none;
    background:linear-gradient(180deg,var(--stand) 0%,var(--ink) 100%);
    border-top:1px solid var(--grid);border-bottom:1px solid var(--grid);
    box-shadow:0 24px 48px rgba(0,0,0,.65);
    max-height:calc(100vh - 58px);overflow-y:auto;overscroll-behavior:contain;
  }
  .cmdbar__panel[data-open="true"]{display:block;animation:kt-drop .2s var(--ease)}
  .nav-index[data-open="true"]{display:block}
  .nav-index__list{flex-direction:column;align-items:stretch;gap:0;padding:6px clamp(16px,4vw,40px)}
  .nav-index__item{border-bottom:1px solid rgba(22,59,53,.7)}
  .nav-index__item:last-child{border-bottom:0}
  .nav-index__link{
    display:flex;width:100%;padding:14px 2px;font-size:16px;gap:12px;
    border:0;
  }
  .nav-index__link:hover,.nav-index__link:focus-visible{background:rgba(56,242,196,.08)}
  .nav-index__link[aria-current="page"]{
    background:rgba(56,242,196,.14);color:var(--cyan);
    box-shadow:inset 3px 0 0 var(--cyan);padding-left:12px;
  }
  .nav-index__link[aria-current="page"] .nav-index__num{color:var(--lamp)}
  .nav-index__num{font-size:11px}
  .nav-index__cta{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    margin:14px clamp(16px,4vw,40px) 18px;padding:13px 16px;
    background:var(--ref);color:var(--ink);
    font-size:14px;font-weight:700;letter-spacing:.02em;
    box-shadow:4px 4px 0 rgba(56,242,196,.25);
  }
  .cmdbar__actions{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    padding:14px clamp(16px,4vw,40px) 20px;
    border-top:1px solid var(--grid);
  }
  .cmdbar__cta{display:none}
  .refresh-pill{font-size:10.5px}
  .foot__contact{grid-template-columns:minmax(0,1fr)}
}
@keyframes kt-drop{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:translateY(0)}
}

@media (max-width:480px){
  body{font-size:16px;line-height:1.75}
  .brand-mark__name{font-size:17px}
  .nav-toggle__label{font-size:12px}
  .refresh-pill__text{letter-spacing:.02em}
  .foot__meta{justify-content:flex-start}
}

/* ---- reduced motion ---- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .cmdbar__panel[data-open="true"]{animation:none}
  .btn:hover{transform:none}
}