*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0}
img,svg,video,picture{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit}
table{border-collapse:collapse;width:100%}

:root{
  --phx-night:#0A1C17;
  --phx-coal:#121617;
  --phx-neon:#2FF3A1;
  --phx-neon-deep:#1FD98D;
  --phx-violet:#7B5CFF;
  --phx-white:#E8F5F0;
  --phx-mist:#8AA8A0;
  --phx-red:#E5484D;
  --phx-yellow:#F5C33B;
  --phx-line:#1D2E29;
  --phx-glass:rgba(232,245,240,.06);
  --phx-glass-strong:rgba(232,245,240,.11);
  --phx-font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --phx-font-display:"Noto Sans SC Condensed","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --phx-font-body:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --phx-max:1240px;
  --phx-pad:clamp(16px,3vw,40px);
  --phx-ease:cubic-bezier(.22,.61,.36,1);
  --phx-radius:2px;
}

body{
  min-height:100vh;
  background-color:var(--phx-night);
  background-image:
    radial-gradient(1200px 620px at 50% -12%,rgba(47,243,161,.075),transparent 72%),
    radial-gradient(900px 500px at 100% 100%,rgba(123,92,255,.06),transparent 70%),
    linear-gradient(to right,var(--phx-line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--phx-line) 1px,transparent 1px);
  background-size:auto,auto,88px 88px,88px 88px;
  color:var(--phx-white);
  font-family:var(--phx-font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(47,243,161,.28);color:#04120D}

h1,h2,h3,h4{font-family:var(--phx-font-display);font-weight:800;line-height:1.18;letter-spacing:-.01em;color:var(--phx-white)}
h1{font-size:clamp(30px,5vw,54px)}
h2{font-size:clamp(23px,3.2vw,36px)}
h3{font-size:clamp(18px,1.8vw,21px)}
strong{color:#fff;font-weight:700}

:focus-visible{outline:2px solid var(--phx-neon);outline-offset:2px;border-radius:2px}

.phx-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.phx-mono{font-family:var(--phx-font-mono);font-size:13px;letter-spacing:.06em}
.phx-muted{color:var(--phx-mist)}
.phx-rule{height:0;border:0;border-top:1px solid var(--phx-line);margin:0}
.phx-list-plain{list-style:none}

.phx-skip{
  position:absolute;left:12px;top:-64px;z-index:200;
  padding:10px 16px;background:var(--phx-neon);color:#04120D;
  font-family:var(--phx-font-mono);font-size:13px;letter-spacing:.06em;
  text-decoration:none;border-radius:var(--phx-radius);
  transition:top .18s var(--phx-ease);
}
.phx-skip:focus{top:12px}

.phx-container{width:100%;max-width:var(--phx-max);margin-inline:auto;padding-inline:var(--phx-pad)}

/* ---------- buttons ---------- */
.phx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border:1px solid var(--phx-line);border-radius:var(--phx-radius);
  background:var(--phx-glass);color:var(--phx-white);text-decoration:none;
  font-family:var(--phx-font-mono);font-size:13px;letter-spacing:.08em;line-height:1.2;
  cursor:pointer;appearance:none;
  transition:background .18s var(--phx-ease),color .18s var(--phx-ease),border-color .18s var(--phx-ease),box-shadow .18s var(--phx-ease),transform .18s var(--phx-ease);
}
.phx-btn:hover{background:var(--phx-glass-strong);border-color:var(--phx-mist);transform:translateY(-1px)}
.phx-btn--primary{background:var(--phx-neon);border-color:var(--phx-neon);color:#04120D;font-weight:700}
.phx-btn--primary:hover{background:var(--phx-neon-deep);border-color:var(--phx-neon-deep);box-shadow:0 0 0 3px rgba(47,243,161,.18)}
.phx-btn--ghost{background:transparent;border-color:var(--phx-mist);color:var(--phx-white)}
.phx-btn--ghost:hover{border-color:var(--phx-neon);color:var(--phx-neon);background:rgba(47,243,161,.06)}

/* ---------- header ---------- */
.phx-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,28,23,.94);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  backdrop-filter:blur(10px) saturate(130%);
  border-bottom:1px solid var(--phx-line);
}
.phx-header__inner{position:relative}
.phx-header__bar{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:clamp(10px,2vw,24px);
  padding-block:12px;
  border-bottom:1px solid var(--phx-line);
}
.phx-brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;min-width:0}
.phx-brand__mark{
  width:28px;height:28px;flex:none;
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;padding:3px;
  border:1px solid var(--phx-neon);background:rgba(47,243,161,.08);
  transition:background .2s var(--phx-ease);
}
.phx-brand__mark span{background:var(--phx-neon);opacity:.9}
.phx-brand__mark span:nth-child(2){opacity:.32}
.phx-brand__mark span:nth-child(3){opacity:.5}
.phx-brand__mark span:nth-child(4){background:var(--phx-violet);opacity:.92}
.phx-brand:hover .phx-brand__mark{background:rgba(47,243,161,.16)}
.phx-brand__text{display:flex;flex-direction:column;min-width:0}
.phx-brand__name{font-family:var(--phx-font-display);font-weight:800;font-size:19px;letter-spacing:.05em;line-height:1.15;color:var(--phx-white)}
.phx-brand__suffix{font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.18em;color:var(--phx-mist);line-height:1.3}
.phx-status{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 11px;border:1px solid rgba(47,243,161,.35);border-radius:var(--phx-radius);
  background:rgba(47,243,161,.07);color:var(--phx-neon);
  font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.08em;white-space:nowrap;
}
.phx-status__dot{width:7px;height:7px;flex:none;border-radius:50%;background:var(--phx-neon);animation:phx-pulse 2.4s ease-in-out infinite}
.phx-status__text{line-height:1.2}
@keyframes phx-pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(47,243,161,.5)}
  50%{opacity:.5;box-shadow:0 0 0 6px rgba(47,243,161,0)}
}
.phx-header__cta{margin-left:auto}
.phx-nav-toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:8px 12px;border:1px solid var(--phx-line);border-radius:var(--phx-radius);
  background:var(--phx-glass);color:var(--phx-white);cursor:pointer;appearance:none;
  font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.1em;
  transition:border-color .18s var(--phx-ease),color .18s var(--phx-ease),background .18s var(--phx-ease);
}
.phx-nav-toggle:hover{border-color:var(--phx-neon);color:var(--phx-neon);background:rgba(47,243,161,.08)}
.phx-nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:16px;height:11px;flex:none}
.phx-nav-toggle__bars span{display:block;height:1.5px;background:currentColor}
.phx-nav-toggle__label{line-height:1}
.phx-header__progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--phx-neon),var(--phx-violet));
  transition:transform .12s linear;
  pointer-events:none;
}

/* ---------- nav ---------- */
.phx-nav{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;
  border-bottom:1px solid var(--phx-line);
}
.phx-nav__list{display:flex;flex-wrap:wrap;list-style:none;counter-reset:phxnav;min-width:0}
.phx-nav__item{counter-increment:phxnav}
.phx-nav__link{
  position:relative;display:flex;align-items:center;gap:9px;
  padding:14px 18px;color:var(--phx-mist);text-decoration:none;
  font-size:14.5px;letter-spacing:.02em;
  border-right:1px solid var(--phx-line);
  transition:color .16s var(--phx-ease),background .16s var(--phx-ease);
}
.phx-nav__link::before{
  content:counter(phxnav,decimal-leading-zero);
  font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.08em;
  color:rgba(138,168,160,.7);
  transition:color .16s var(--phx-ease);
}
.phx-nav__link:hover{color:var(--phx-white);background:var(--phx-glass)}
.phx-nav__link:hover::before{color:var(--phx-neon)}
.phx-nav__link[aria-current="page"]{color:var(--phx-neon);background:rgba(47,243,161,.07)}
.phx-nav__link[aria-current="page"]::before{color:var(--phx-neon)}
.phx-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--phx-neon);
}
.phx-nav__rail{display:none;align-items:center;gap:12px;padding-right:4px;color:var(--phx-mist);font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.18em}
.phx-nav__rail-ticks{
  display:block;width:72px;height:9px;
  background-image:repeating-linear-gradient(to right,var(--phx-mist) 0 1px,transparent 1px 9px);
  opacity:.5;
}
.phx-nav__rail-index{color:var(--phx-neon)}

/* ---------- footer ---------- */
.phx-footer{
  margin-top:clamp(40px,7vw,96px);
  background:var(--phx-coal);
  border-top:1px solid var(--phx-line);
  color:var(--phx-mist);
}
.phx-footer__inner{padding-block:clamp(32px,5vw,60px)}
.phx-footer__top{
  display:grid;gap:clamp(18px,3vw,40px);
  grid-template-columns:minmax(220px,1fr) minmax(260px,1.4fr);
  padding-bottom:clamp(22px,3vw,34px);
  border-bottom:1px solid var(--phx-line);
}
.phx-footer__brandname{font-family:var(--phx-font-display);font-weight:800;font-size:22px;line-height:1.2;color:var(--phx-white);letter-spacing:.04em}
.phx-footer__brandsuffix{font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.16em;color:var(--phx-mist);margin-top:6px}
.phx-footer__contact{display:flex;flex-direction:column;gap:6px}
.phx-footer__contact-line{font-size:14px;line-height:1.7;color:var(--phx-mist);word-break:break-word}
.phx-footer__address{font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.08em;color:rgba(138,168,160,.78)}
.phx-footer__grid{
  display:grid;gap:clamp(18px,3vw,36px);
  grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));
  padding-block:clamp(24px,3.4vw,40px);
}
.phx-footer__col{border-left:1px solid var(--phx-line);padding-left:16px}
.phx-footer__title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--phx-white);margin-bottom:12px;
}
.phx-footer__title::before{content:"";width:12px;height:2px;background:var(--phx-neon);flex:none}
.phx-footer__list{list-style:none;display:flex;flex-direction:column;gap:2px}
.phx-footer__link{
  display:inline-block;padding:4px 0;font-size:14.5px;color:var(--phx-mist);text-decoration:none;
  transition:color .16s var(--phx-ease),transform .16s var(--phx-ease);
}
.phx-footer__link:hover{color:var(--phx-neon);transform:translateX(2px)}
.phx-footer__bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  padding-top:clamp(18px,2.4vw,26px);
  border-top:1px solid var(--phx-line);
}
.phx-footer__legal{font-family:var(--phx-font-mono);font-size:11.5px;letter-spacing:.1em;color:rgba(138,168,160,.8)}
.phx-footer__year{color:var(--phx-mist)}
.phx-footer__footnote{margin-top:14px;font-size:13px;color:rgba(138,168,160,.72);max-width:70ch}

/* ---------- breadcrumbs ---------- */
.phx-crumbs{font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.08em}
.phx-crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.phx-crumbs__item{display:inline-flex;align-items:center;gap:8px;color:var(--phx-mist)}
.phx-crumbs__item a{color:var(--phx-mist);text-decoration:none}
.phx-crumbs__item a:hover{color:var(--phx-neon)}
.phx-crumbs__item+ .phx-crumbs__item::before{content:"/";color:var(--phx-line)}
.phx-crumbs__item[aria-current="page"]{color:var(--phx-neon)}

/* ---------- sections / prose ---------- */
.phx-section{padding-block:clamp(36px,6vw,84px)}
.phx-section__head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(20px,3vw,36px)}
.phx-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.2em;color:var(--phx-neon);text-transform:uppercase;
}
.phx-eyebrow::before{content:"";width:22px;height:1px;background:var(--phx-neon);flex:none}
.phx-title{max-width:20ch}
.phx-lede{font-size:clamp(16px,1.5vw,18.5px);line-height:1.8;color:var(--phx-mist);max-width:62ch}
.phx-prose{max-width:68ch;font-size:17px;line-height:1.85;color:rgba(232,245,240,.88)}
.phx-prose>*+*{margin-top:1.05em}
.phx-prose h2,.phx-prose h3{color:var(--phx-white)}
.phx-prose a{color:var(--phx-neon);text-decoration:underline;text-underline-offset:3px}
.phx-prose ul,.phx-prose ol{padding-left:1.2em}
.phx-prose li+li{margin-top:.4em}

/* ---------- grid / panel / media ---------- */
.phx-grid{display:grid;gap:clamp(16px,2vw,28px)}
.phx-grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.phx-grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.phx-grid--4{grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr))}
.phx-panel{
  background:var(--phx-glass);
  border:1px solid var(--phx-line);
  border-radius:var(--phx-radius);
  padding:clamp(16px,2vw,26px);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.phx-panel--solid{background:var(--phx-coal);-webkit-backdrop-filter:none;backdrop-filter:none}
.phx-media{
  position:relative;display:block;width:100%;overflow:hidden;
  aspect-ratio:16/9;
  background:var(--phx-coal);
  border:1px solid var(--phx-line);border-radius:var(--phx-radius);
}
.phx-media>img,.phx-media>picture>img,.phx-media>svg,.phx-media>video{width:100%;height:100%;object-fit:cover;display:block}
.phx-media--21x9{aspect-ratio:21/9}
.phx-media--16x9{aspect-ratio:16/9}
.phx-media--4x3{aspect-ratio:4/3}
.phx-media--1x1{aspect-ratio:1/1}
.phx-media--3x4{aspect-ratio:3/4}
.phx-media--blueprint{
  background-image:
    linear-gradient(to right,var(--phx-line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--phx-line) 1px,transparent 1px);
  background-size:32px 32px;
}
.phx-media__label{
  position:absolute;left:10px;bottom:10px;
  padding:4px 8px;border:1px solid var(--phx-line);border-radius:var(--phx-radius);
  background:rgba(10,28,23,.78);color:var(--phx-neon);
  font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.12em;
}

/* ---------- marks / filters ---------- */
.phx-mark{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 7px;border:1px solid currentColor;border-radius:var(--phx-radius);
  font-family:var(--phx-font-mono);font-size:11px;letter-spacing:.14em;line-height:1;text-transform:uppercase;
}
.phx-mark--red{color:var(--phx-red);background:rgba(229,72,77,.1)}
.phx-mark--yellow{color:var(--phx-yellow);background:rgba(245,195,59,.1)}
.phx-mark--violet{color:#A995FF;background:rgba(123,92,255,.14)}
.phx-mark--neon{color:var(--phx-neon);background:rgba(47,243,161,.1)}
.phx-filters{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.phx-filter{
  padding:8px 14px;border:1px solid var(--phx-line);border-radius:var(--phx-radius);
  background:var(--phx-glass);color:var(--phx-mist);cursor:pointer;appearance:none;
  font-family:var(--phx-font-mono);font-size:12.5px;letter-spacing:.08em;line-height:1.2;
  transition:color .16s var(--phx-ease),border-color .16s var(--phx-ease),background .16s var(--phx-ease);
}
.phx-filter:hover{color:var(--phx-white);border-color:var(--phx-mist)}
.phx-filter[aria-pressed="true"]{color:var(--phx-neon);border-color:var(--phx-neon);background:rgba(47,243,161,.12)}
.phx-filter-count{font-family:var(--phx-font-mono);font-size:12px;letter-spacing:.08em;color:var(--phx-mist)}
[data-filter-item][hidden]{display:none}

/* ---------- reveal ---------- */
.phx-reveal.is-armed{opacity:0;transform:translateY(8px)}
.phx-reveal.is-visible{opacity:1;transform:none;transition:opacity .22s var(--phx-ease),transform .22s var(--phx-ease)}

/* ---------- responsive ---------- */
@media (min-width:1100px){
  .phx-nav__rail{display:flex}
}
@media (max-width:900px){
  .phx-header__bar{padding-block:10px}
  .phx-header__cta{margin-left:0;padding:9px 14px}
  .phx-nav-toggle{display:inline-flex}
  .phx-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    max-height:calc(100vh - 84px);overflow-y:auto;
    padding:10px var(--phx-pad) 18px;
    background:var(--phx-coal);
    border-top:1px solid var(--phx-line);
    border-bottom:1px solid var(--phx-line);
    box-shadow:0 26px 52px rgba(0,0,0,.5);
  }
  .phx-nav[data-open]{display:block}
  .phx-nav__list{flex-direction:column;flex-wrap:nowrap}
  .phx-nav__item{width:100%}
  .phx-nav__link{padding:15px 2px;font-size:16px;border-right:0;border-bottom:1px solid var(--phx-line)}
  .phx-nav__link[aria-current="page"]::after{bottom:0}
  .phx-footer__top{grid-template-columns:1fr}
  .phx-footer__col{border-left:0;border-top:1px solid var(--phx-line);padding-left:0;padding-top:14px}
}
@media (max-width:640px){
  .phx-status{display:none}
  .phx-header__cta{margin-left:auto}
  .phx-nav-toggle{margin-left:0}
  .phx-footer__inner{padding-block:32px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .phx-reveal.is-armed{opacity:1;transform:none}
  .phx-header__progress{transition:none}
}