:root{
  --navy:#071A2F;
  --navy-2:#0E2F4F;
  --cyan:#27E1D2;
  --cyan-soft:#A8FFF7;
  --orange:#FF6B3D;
  --white:#F4F7F8;
  --ink:#101820;
  --grey:#5B6B78;
  --line:#1E4A66;
  --live:#45D483;
  --font-display:"Helvetica Neue","Arial Nova",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --wrap:1240px;
  --gut:clamp(16px,3vw,40px);
  --header-h:64px;
  --cut:16px;
  --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;
  background:var(--navy);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--cyan-soft);text-decoration:none}
a:hover{color:var(--cyan)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:2px;
}
::selection{background:var(--cyan);color:var(--navy)}

/* ---------- typography ---------- */
.display-num{
  font-family:var(--font-display);
  font-weight:200;
  font-size:clamp(56px,12vw,180px);
  line-height:.82;
  letter-spacing:-.04em;
  color:var(--cyan);
}
h1,.h1{
  font-family:var(--font-display);
  font-size:clamp(32px,5.4vw,64px);
  font-weight:700;
  line-height:1.06;
  letter-spacing:-.02em;
  color:var(--white);
}
h2,.h2{
  font-family:var(--font-display);
  font-size:clamp(24px,3.4vw,36px);
  font-weight:700;
  line-height:1.15;
  letter-spacing:-.02em;
}
h3,.h3{
  font-family:var(--font-display);
  font-size:clamp(18px,2.2vw,24px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
p{max-width:680px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:0;left:0;
  z-index:1000;
  transform:translateY(-120%);
  background:var(--orange);
  color:var(--ink);
  font-weight:700;
  padding:10px 18px;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0);color:var(--ink)}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed;
  top:0;left:0;
  height:3px;width:100%;
  z-index:900;
  background:transparent;
  pointer-events:none;
}
.scroll-progress::after{
  content:"";
  display:block;
  height:100%;
  width:calc(var(--scroll,0) * 100%);
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .12s linear;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:800;
  background:linear-gradient(180deg,rgba(7,26,47,.98),rgba(7,26,47,.92));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.header-bar{
  max-width:var(--wrap);
  margin:0 auto;
  min-height:var(--header-h);
  padding:10px var(--gut);
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  align-items:center;
  gap:clamp(14px,2.4vw,32px);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--white);
}
.brand:hover{color:var(--white)}
.brand-mark{
  width:26px;height:26px;
  flex:0 0 26px;
  background:var(--cyan);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:7px 7px 9px 7px;
  background:var(--navy);
  clip-path:polygon(0 0,100% 0,100% 55%,55% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.01em;
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
}
.site-nav{margin-left:auto}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:9px 11px;
  color:var(--white);
  font-size:14px;
  font-weight:500;
  letter-spacing:.01em;
  white-space:nowrap;
  border:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.nav-index{
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--grey);
  letter-spacing:.06em;
  transition:color .18s var(--ease);
}
.nav-link:hover{
  color:var(--cyan);
  border-color:var(--line);
  background:rgba(39,225,210,.06);
}
.nav-link:hover .nav-index{color:var(--cyan)}
.nav-link[aria-current="page"]{
  color:var(--navy);
  background:var(--cyan);
  font-weight:700;
}
.nav-link[aria-current="page"] .nav-index{color:rgba(7,26,47,.6)}
.header-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-left:clamp(8px,1.4vw,18px);
  border-left:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--grey);
  white-space:nowrap;
}
.header-clock{color:var(--cyan-soft)}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-family:var(--font-display);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.2;
  border:1px solid transparent;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:transform .16s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--orange);color:var(--ink);border-color:var(--orange)}
.btn-primary:hover{background:#ff8258;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--cyan);border-color:var(--cyan)}
.btn-ghost:hover{background:var(--cyan);color:var(--navy)}
.btn-sm{padding:9px 15px;font-size:13px;clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%)}
.header-cta{white-space:nowrap}

/* nav toggle */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 12px;
  border:1px solid var(--line);
  color:var(--white);
  background:var(--navy-2);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}
.nav-toggle-bars{
  position:relative;
  width:18px;height:12px;
  flex:0 0 18px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:2px;
  background:var(--cyan);
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{top:10px}
.nav-toggle-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg)}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::after{top:5px;transform:rotate(-45deg)}

/* ---------- layout primitives ---------- */
.container{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gut);
}
.container-narrow{max-width:880px}
.section{
  position:relative;
  padding:clamp(48px,7vw,96px) 0;
  border-top:1px solid var(--line);
}
.section:first-of-type{border-top:0}
.section-head{
  display:grid;
  grid-template-columns:minmax(56px,auto) 1fr;
  gap:clamp(14px,2.6vw,32px);
  align-items:start;
  margin-bottom:clamp(24px,4vw,48px);
}
.section-index{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--cyan);
  padding-top:.6em;
  white-space:nowrap;
}
.section-title{letter-spacing:-.02em}
.section-lead{
  margin-top:12px;
  color:rgba(244,247,248,.72);
  font-size:clamp(15px,1.5vw,17px);
  max-width:62ch;
}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:clamp(14px,2vw,22px) 0 0}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--grey);
}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item + .breadcrumb-item::before{
  content:"/";
  color:var(--line);
}
.breadcrumb-item a{color:var(--grey)}
.breadcrumb-item a:hover{color:var(--cyan)}
.breadcrumb-item[aria-current="page"]{color:var(--cyan-soft)}

/* ---------- panels ---------- */
.panel{
  position:relative;
  background:var(--navy-2);
  border:1px solid var(--line);
  padding:clamp(18px,2.4vw,28px);
}
.panel-cut{
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.panel-cut.panel-notch{
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.panel-title{
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
}
.panel-body{color:rgba(244,247,248,.82);font-size:15px}

/* ---------- scoreboard ---------- */
.scoreboard{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:clamp(8px,1.6vw,18px);
  padding:clamp(14px,2vw,22px) 0;
}
.score-num{
  font-family:var(--font-mono);
  font-size:clamp(30px,5vw,52px);
  font-weight:600;
  line-height:1;
  letter-spacing:-.03em;
  color:var(--white);
  font-variant-numeric:tabular-nums;
}
.score-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--grey);
  text-transform:uppercase;
}
.score-meta{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--cyan);
  text-align:center;
}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  display:grid;
  gap:0;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;top:6px;bottom:6px;
  width:1px;
  background:linear-gradient(180deg,var(--cyan),var(--line) 55%,transparent);
}
.timeline-item{
  position:relative;
  padding:0 0 22px 32px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;
  left:0;top:7px;
  width:15px;height:15px;
  background:var(--navy);
  border:1px solid var(--line);
  border-radius:50%;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.timeline-item.is-active .timeline-dot{
  border-color:var(--cyan);
  box-shadow:0 0 0 4px rgba(39,225,210,.16);
  background:var(--cyan);
}
.timeline-item.is-active .timeline-body{border-left-color:var(--cyan)}
.timeline-body{
  border-left:1px solid transparent;
  padding-left:0;
  transition:border-color .2s var(--ease);
}
.timeline-time{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--cyan);
  display:block;
  margin-bottom:4px;
}
.timeline-title{
  font-family:var(--font-display);
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
}
.timeline-text{font-size:14px;color:rgba(244,247,248,.7);margin-top:4px}

/* ---------- state dots ---------- */
.state-dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--grey);
  flex:0 0 8px;
}
.state-dot.is-live{background:var(--live);box-shadow:0 0 0 3px rgba(69,212,131,.16)}
.state-dot.is-ok{background:var(--cyan)}
.state-dot.is-wait{background:var(--orange)}

/* ---------- chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 13px;
  border:1px solid var(--line);
  background:transparent;
  color:rgba(244,247,248,.78);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  transition:color .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.chip:hover{color:var(--cyan);border-color:var(--cyan)}
.chip[aria-pressed="true"],.chip.is-active{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--navy);
  font-weight:700;
}
.tag{
  display:inline-block;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  border:1px solid var(--line);
  color:var(--grey);
  text-transform:uppercase;
}
.tag-accent{border-color:var(--orange);color:var(--orange)}

/* ---------- accordion ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:16px 0;
  text-align:left;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:700;
  color:var(--white);
  letter-spacing:-.01em;
}
.accordion-trigger:hover{color:var(--cyan)}
.accordion-icon{
  position:relative;
  width:14px;height:14px;
  flex:0 0 14px;
}
.accordion-icon::before,
.accordion-icon::after{
  content:"";
  position:absolute;
  background:var(--cyan);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.accordion-icon::before{top:6px;left:0;width:14px;height:2px}
.accordion-icon::after{left:6px;top:0;width:2px;height:14px}
.accordion-trigger[aria-expanded="true"] .accordion-icon::after{transform:scaleY(0);opacity:0}
.accordion-panel{
  overflow:hidden;
  height:0;
  transition:height .26s var(--ease);
}
.accordion-panel-inner{
  padding:0 0 18px;
  font-size:15px;
  color:rgba(244,247,248,.75);
}

/* ---------- meta rows ---------- */
.meta-row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  padding:9px 0;
  border-bottom:1px dashed rgba(30,74,102,.8);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
}
.meta-row:last-child{border-bottom:0}
.meta-key{color:var(--grey)}
.meta-val{color:var(--cyan-soft);text-align:right}

/* ---------- media frame ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  background:
    linear-gradient(140deg,rgba(39,225,210,.16),rgba(7,26,47,.1) 46%,rgba(255,107,61,.14)),
    var(--navy-2);
  border:1px solid var(--line);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,transparent 40%,rgba(7,26,47,.55));
  pointer-events:none;
}
.media-frame img{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.82) contrast(1.05);
}
.media-frame-tall{aspect-ratio:3/4}
.media-frame-wide{aspect-ratio:21/9}

/* ---------- decorative ---------- */
.divider-slash{
  display:inline-block;
  width:1px;height:11px;
  background:var(--line);
  transform:skewX(-18deg);
  vertical-align:middle;
}
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:linear-gradient(180deg,var(--navy) 0%,#04101d 100%);
  border-top:1px solid var(--line);
  overflow:hidden;
}
.footer-cut{
  height:clamp(28px,5vw,56px);
  background:
    repeating-linear-gradient(115deg,rgba(39,225,210,.22) 0 2px,transparent 2px 16px),
    linear-gradient(180deg,rgba(14,47,79,.9),transparent);
  clip-path:polygon(0 0,100% 0,100% 30%,0 100%);
}
.footer-inner{
  display:grid;
  grid-template-columns:minmax(240px,1fr) minmax(0,1.6fr);
  gap:clamp(28px,5vw,72px);
  padding-top:clamp(28px,5vw,56px);
  padding-bottom:clamp(28px,5vw,56px);
}
.footer-brand{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(22px,2.6vw,28px);
  letter-spacing:-.02em;
  color:var(--white);
}
.footer-summary{
  margin:12px 0 20px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(244,247,248,.66);
  max-width:46ch;
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,36px);
}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
  padding-bottom:10px;
  margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.footer-list{display:grid;gap:9px}
.footer-list a{
  color:rgba(244,247,248,.78);
  font-size:14px;
  transition:color .16s var(--ease);
}
.footer-list a:hover{color:var(--cyan)}
.footer-list-meta{font-family:var(--font-mono);font-size:12px}
.footer-list-meta li{display:grid;gap:2px}
.footer-key{
  font-size:10px;
  letter-spacing:.16em;
  color:var(--grey);
  text-transform:uppercase;
}
.footer-val{color:rgba(244,247,248,.78)}
.footer-base{border-top:1px solid var(--line);background:rgba(4,16,29,.9)}
.footer-base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
  padding-top:16px;
  padding-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--grey);
}
.footer-copy,.footer-icp{color:var(--grey)}
.footer-legal{display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap}
.footer-legal a{color:rgba(244,247,248,.7)}
.footer-legal a:hover{color:var(--cyan)}

/* back to top */
.back-to-top{
  position:fixed;
  right:clamp(14px,3vw,28px);
  bottom:clamp(14px,3vw,28px);
  z-index:850;
  width:46px;height:46px;
  display:grid;
  place-items:center;
  background:var(--navy-2);
  color:var(--cyan);
  border:1px solid var(--cyan);
  font-size:16px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.back-to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.back-to-top:hover{background:var(--cyan);color:var(--navy)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .header-meta{display:none}
  .header-bar{grid-template-columns:auto 1fr auto auto}
  .nav-link{padding:9px 8px;font-size:13px}
  .nav-index{display:none}
}
@media (max-width:980px){
  .header-bar{grid-template-columns:auto 1fr auto;gap:12px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;
    left:0;right:0;
    bottom:0;
    top:auto;
    margin:0;
    background:rgba(7,26,47,.985);
    border-top:1px solid var(--cyan);
    box-shadow:0 -18px 40px rgba(0,0,0,.45);
    transform:translateY(112%);
    transition:transform .32s var(--ease);
    z-index:820;
    padding:14px var(--gut) calc(18px + env(safe-area-inset-bottom,0px));
  }
  .site-nav[data-open="true"]{transform:translateY(0)}
  .nav-list{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    max-width:var(--wrap);
    margin:0 auto;
  }
  .nav-link{
    display:flex;
    justify-content:space-between;
    font-size:15px;
    padding:13px 14px;
    border:1px solid var(--line);
    background:rgba(14,47,79,.6);
  }
  .nav-index{display:inline;font-size:11px}
  .footer-inner{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .col-4,.col-5,.col-7,.col-8{grid-column:span 12}
}
@media (max-width:640px){
  :root{--header-h:58px}
  .brand-tagline{display:none}
  .brand-name{font-size:15px}
  .brand-mark{width:22px;height:22px;flex-basis:22px}
  .header-bar{padding:10px 14px}
  .nav-toggle-label{display:none}
  .nav-list{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr}
  .footer-base-inner{justify-content:flex-start}
  .back-to-top{width:42px;height:42px}
  .section-head{grid-template-columns:1fr;gap:8px}
  .section-index{order:-1}
  p{max-width:100%}
}
@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;
  }
  .reveal{opacity:1;transform:none}
}