*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}

:root{
  --c-purple:#5F01D1;
  --c-indigo:#241A4E;
  --c-orange:#FF7A1A;
  --c-cream:#FBF6EE;
  --c-lilac:#EEE9F7;
  --c-ink:#1B1233;
  --c-muted:#6A6382;
  --c-line:#D9CFF0;
  --c-glow:#B79BFF;
  --c-verify:#1F8A70;
  --rail-w:76px;
  --wrap:1180px;
  --gutter:32px;
  --radius:10px;
  --fs-1:12px;
  --fs-2:14px;
  --fs-3:17px;
  --fs-4:22px;
  --fs-5:32px;
  --fs-6:48px;
  --font-display:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 1px 2px rgba(36,26,78,.06);
}

body{
  background:var(--c-cream);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:var(--fs-3);
  line-height:1.75;
  min-height:100vh;
}
h1,h2,h3{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--c-indigo)}
h1{font-size:var(--fs-6)}
h2{font-size:var(--fs-5)}
h3{font-size:var(--fs-4)}
h4{font-size:var(--fs-3);font-weight:700;color:var(--c-indigo)}
small{font-size:var(--fs-1)}
strong{font-weight:700}

:focus-visible{outline:2px solid var(--c-purple);outline-offset:3px;border-radius:4px}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:14px;top:-80px;z-index:400;
  display:inline-flex;align-items:center;
  padding:10px 20px;border-radius:var(--radius);
  background:var(--c-indigo);color:var(--c-cream);
  font-size:var(--fs-2);font-weight:600;text-decoration:none;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--c-cream);
  border-bottom:1px solid var(--c-line);
}
.site-header::before{
  content:"";display:block;height:4px;
  background:linear-gradient(90deg,var(--c-purple) 0 68%,var(--c-orange) 68% 80%,var(--c-glow) 80% 100%);
}
.masthead{position:relative}
.masthead__inner{
  max-width:var(--wrap);
  margin:0 auto;
  padding:16px var(--gutter) 14px;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
}
.masthead__edition{
  grid-column:1;justify-self:start;
  font-family:var(--font-mono);
  font-size:var(--fs-1);
  line-height:1.7;
  letter-spacing:.02em;
  color:var(--c-muted);
  max-width:24ch;
}
.masthead__brand{
  grid-column:2;justify-self:center;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:2px 8px;border-radius:var(--radius);
  text-decoration:none;
  transition:transform .18s var(--ease);
}
.masthead__brand:hover{transform:translateY(-1px)}
.masthead__lockup{
  display:flex;align-items:baseline;gap:7px;
  font-family:var(--font-display);line-height:1;
}
.masthead__logo-a{font-size:30px;font-weight:800;letter-spacing:-.03em;color:var(--c-indigo)}
.masthead__logo-b{font-size:30px;font-weight:800;letter-spacing:-.03em;color:var(--c-purple)}
.masthead__wordmark{
  font-size:var(--fs-1);font-weight:600;letter-spacing:.3em;
  color:var(--c-muted);padding-left:.1em;
}
.masthead__sub{
  font-size:var(--fs-1);color:var(--c-muted);
  letter-spacing:.32em;padding-left:.32em;line-height:1.4;
}
.masthead__actions{
  grid-column:3;justify-self:end;
  display:flex;align-items:center;gap:10px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  border:1px solid transparent;
  font-size:var(--fs-2);font-weight:600;line-height:1.4;
  text-decoration:none;white-space:nowrap;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.btn--primary{background:var(--c-purple);border-color:var(--c-purple);color:#fff}
.btn--primary:hover{background:var(--c-indigo);border-color:var(--c-indigo);transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-indigo)}
.btn--ghost:hover{border-color:var(--c-purple);color:var(--c-purple)}
.btn--onDark{
  background:transparent;border-color:rgba(217,207,240,.42);color:#fff;
}
.btn--onDark:hover{background:var(--c-purple);border-color:var(--c-purple);color:#fff;transform:translateY(-1px)}

/* ---------- nav toggle ---------- */
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-lilac);
  color:var(--c-indigo);font-size:var(--fs-2);font-weight:600;
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-purple)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars span{
  display:block;height:2px;border-radius:2px;background:var(--c-indigo);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__text{line-height:1}

/* ---------- nav ---------- */
.site-nav{
  border-top:1px solid var(--c-line);
  background:var(--c-cream);
}
.site-nav__list{
  counter-reset:nav;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
  display:flex;justify-content:center;flex-wrap:wrap;
}
.site-nav__item{counter-increment:nav;position:relative}
.site-nav__item + .site-nav__item::before{
  content:"";position:absolute;left:0;top:50%;
  width:1px;height:12px;margin-top:-6px;
  background:var(--c-line);
}
.site-nav__link{
  position:relative;
  display:flex;align-items:center;gap:8px;
  padding:13px 18px;
  font-size:var(--fs-2);
  color:var(--c-muted);
  text-decoration:none;
  transition:color .16s var(--ease);
}
.site-nav__link::before{
  content:"0" counter(nav);
  font-family:var(--font-mono);
  font-size:11px;font-weight:500;letter-spacing:.04em;
  color:var(--c-glow);
  transition:color .16s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;
  left:18px;right:18px;bottom:7px;height:2px;
  background:var(--c-orange);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .18s var(--ease);
}
.site-nav__link:hover{color:var(--c-ink)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--c-indigo);font-weight:600}
.site-nav__link[aria-current="page"]::before{color:var(--c-orange)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* ---------- brand rail ---------- */
.brand-rail{
  display:none;
  position:fixed;left:0;top:0;bottom:0;z-index:120;
  width:var(--rail-w);
  flex-direction:column;align-items:center;justify-content:space-between;
  padding:22px 0 24px;
  background:var(--c-indigo);
  color:var(--c-cream);
}
.brand-rail__top{display:flex;flex-direction:column;align-items:center;gap:10px}
.brand-rail__mark{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;
  background:var(--c-purple);
  font-family:var(--font-display);font-size:15px;font-weight:800;
  color:#fff;
}
.brand-rail__text{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.34em;
  color:#C5BBE2;
  line-height:1;
}
.brand-rail__meter{display:flex;flex-direction:column;align-items:center;gap:10px}
.brand-rail__progress{
  position:relative;display:block;
  width:2px;height:132px;border-radius:2px;
  background:rgba(255,255,255,.16);
  overflow:hidden;
}
.brand-rail__bar{
  display:block;width:100%;height:100%;
  background:var(--c-glow);
  transform:scaleY(0);transform-origin:top center;
  transition:transform .1s linear;
}
.brand-rail__label{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;
  color:#8B7FAE;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;isolation:isolate;
  background:var(--c-indigo);
  color:#E4DEF3;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:5px;z-index:2;
  background:linear-gradient(90deg,var(--c-purple) 0 58%,var(--c-orange) 58% 72%,var(--c-glow) 72% 100%);
}
.site-footer::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.55;
  pointer-events:none;
}
.footer__inner{
  max-width:var(--wrap);
  margin:0 auto;
  padding:64px var(--gutter) 0;
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,.85fr) minmax(0,1.05fr);
  gap:52px 48px;
}
.footer__services{min-width:0}
.footer__heading{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-size:var(--fs-2);font-weight:700;letter-spacing:.08em;
  color:#FFFFFF;line-height:1.4;
}
.footer__heading::before{
  content:"";flex:none;
  width:14px;height:2px;background:var(--c-orange);
}
.footer__heading--xl{font-size:var(--fs-4);letter-spacing:-.01em;margin-bottom:4px}
.footer__groups{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px 28px;
  margin-top:22px;
}
.footer__group{min-width:0}
.footer__group-title{
  font-family:var(--font-mono);
  font-size:var(--fs-1);font-weight:600;letter-spacing:.16em;
  color:var(--c-glow);
  line-height:1.6;margin-bottom:6px;
}
.footer__items{display:flex;flex-direction:column}
.footer__item{
  display:flex;align-items:center;gap:9px;
  padding:6px 0;
  font-size:var(--fs-2);line-height:1.5;
  color:#CFC7E4;
  border-bottom:1px solid rgba(217,207,240,.12);
}
.footer__item::before{
  content:"";flex:none;
  width:5px;height:5px;
  border:1px solid var(--c-glow);
  border-radius:1px;
  transform:rotate(45deg);
}
.footer__nav{display:flex;flex-direction:column;gap:34px;min-width:0}
.footer__links{min-width:0}
.footer__link-list{display:flex;flex-direction:column;margin-top:12px}
.footer__link{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 0;
  font-size:var(--fs-2);color:#CFC7E4;text-decoration:none;
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.footer__link::before{
  content:"";flex:none;
  width:0;height:1px;background:var(--c-orange);
  transition:width .16s var(--ease);
}
.footer__link:hover{color:#FFFFFF;padding-left:2px}
.footer__link:hover::before{width:14px}
.footer__contact{min-width:0}
.footer__contact-list{display:flex;flex-direction:column;gap:14px;margin-top:14px}
.footer__contact-key{
  display:block;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--c-glow);line-height:1.7;
}
.footer__contact-val{
  display:block;
  font-size:var(--fs-2);color:#EDE8F9;line-height:1.6;
  overflow-wrap:break-word;
}
.footer__contact-note{
  margin:18px 0;
  font-size:var(--fs-1);line-height:1.85;
  color:#A79CBF;
  max-width:30em;
}
.footer__contact-cta{margin-top:2px}
.footer__base{
  grid-column:1 / -1;
  display:flex;flex-wrap:wrap;align-items:center;
  gap:12px 28px;
  margin-top:6px;
  padding:22px 0 28px;
  border-top:1px solid rgba(217,207,240,.2);
  font-family:var(--font-mono);
  font-size:var(--fs-1);
  letter-spacing:.02em;
  color:#9C93B5;
}
.footer__base-brand{
  display:flex;align-items:center;gap:10px;
  color:#FFFFFF;font-weight:600;letter-spacing:.04em;
}
.footer__base-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:6px;
  background:var(--c-purple);
  font-family:var(--font-display);font-size:11px;font-weight:700;color:#fff;
}
.footer__legal{color:#C0B6D8}
.footer__copy{margin-left:auto;color:#9C93B5}

/* ---------- shared layout components ---------- */
.container{
  width:100%;max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.breadcrumbs{padding:20px 0 0}
.breadcrumbs__list{
  display:flex;flex-wrap:wrap;align-items:center;
  font-family:var(--font-mono);font-size:var(--fs-1);
  color:var(--c-muted);
}
.breadcrumbs__item{display:inline-flex;align-items:center;line-height:1.6}
.breadcrumbs__item:not(:last-child)::after{content:"/";margin:0 8px;color:var(--c-line)}
.breadcrumbs__link{color:var(--c-muted);text-decoration:none;transition:color .16s var(--ease)}
.breadcrumbs__link:hover{color:var(--c-purple)}
.breadcrumbs__current{color:var(--c-indigo);font-weight:500}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:var(--fs-1);letter-spacing:.14em;
  color:var(--c-muted);
  line-height:1.8;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-orange)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;
  border:1px solid var(--c-line);
  background:rgba(238,233,247,.65);
  font-family:var(--font-mono);font-size:var(--fs-1);
  color:var(--c-muted);line-height:1.7;
}
.status{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:var(--fs-1);
  color:var(--c-muted);line-height:1.7;
}
.status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-verify)}
.prose p{max-width:34em;margin-bottom:1.3em}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{margin:1.6em 0 .6em}
.prose ul,.prose ol{max-width:34em;margin-bottom:1.3em}
.prose li{position:relative;padding-left:18px;margin-bottom:.4em}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--c-glow);transform:rotate(45deg)}
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:22px 22px 24px;
  box-shadow:var(--shadow);
  transition:border-color .16s var(--ease),transform .16s var(--ease);
}
.card:hover{border-color:var(--c-purple);transform:translateY(-2px)}
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  background:var(--c-lilac);
  aspect-ratio:16 / 10;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 14px;
  font-family:var(--font-mono);font-size:11px;
  color:var(--c-indigo);
  background:rgba(251,246,238,.92);
  border-top:1px solid var(--c-line);
}

/* ---------- interaction protocols ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-btn{
  padding:8px 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;
  font-family:var(--font-mono);font-size:var(--fs-1);letter-spacing:.06em;
  color:var(--c-muted);
  transition:color .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.filter-btn:hover{border-color:var(--c-purple);color:var(--c-purple)}
.filter-btn[aria-pressed="true"]{background:var(--c-purple);border-color:var(--c-purple);color:#fff}
[data-filter-item]{transition:opacity .2s var(--ease),transform .2s var(--ease)}
[data-filter-item][data-filtered="true"]{opacity:.2;transform:scale(.985);pointer-events:none}
[data-reveal="pending"]{opacity:0;transform:translateY(12px)}
[data-reveal="shown"]{opacity:1;transform:translateY(0);transition:opacity .4s var(--ease),transform .4s var(--ease)}
[data-toc-link]{transition:color .16s var(--ease)}
[data-toc-link][aria-current]{color:var(--c-purple);font-weight:600}

/* ---------- responsive ---------- */
@media (min-width:1200px){
  body{padding-left:var(--rail-w)}
  .brand-rail{display:flex}
}
@media (max-width:1180px){
  :root{--gutter:24px}
}
@media (max-width:1080px){
  .masthead__edition{display:none}
  .footer__inner{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:44px 40px}
  .footer__contact{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    max-height:0;overflow:hidden;
    transition:max-height .3s var(--ease);
    border-top-color:transparent;
  }
  .site-nav[data-open]{
    max-height:78vh;overflow:auto;
    border-top-color:var(--c-line);
  }
  .site-nav__list{flex-direction:column;padding:6px var(--gutter) 18px}
  .site-nav__item + .site-nav__item::before{display:none}
  .site-nav__link{
    padding:14px 4px;
    font-size:var(--fs-3);
    border-bottom:1px solid var(--c-line);
    justify-content:flex-start;
  }
  .site-nav__link::after{left:4px;right:4px;bottom:8px}
  .masthead__inner{padding:14px var(--gutter) 12px;gap:10px}
  .masthead__logo-a,.masthead__logo-b{font-size:26px}
  .footer__inner{grid-template-columns:1fr;gap:38px;padding-top:52px}
  .footer__contact{grid-column:auto}
}
@media (max-width:640px){
  :root{--gutter:18px;--fs-6:34px;--fs-5:26px;--fs-4:20px}
  body{font-size:16px}
  .masthead__actions{gap:8px}
  .masthead__actions .btn{padding:8px 13px;font-size:var(--fs-1)}
  .nav-toggle{padding:7px 11px;font-size:var(--fs-1)}
  .masthead__edition{display:none}
  .footer__groups{grid-template-columns:1fr;gap:20px}
  .footer__base{flex-direction:column;align-items:flex-start;gap:8px}
  .footer__copy{margin-left:0}
  .footer__inner{padding:44px var(--gutter) 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal="pending"]{opacity:1;transform:none}
  .site-nav{transition:none}
}