:root{
  --turf:#0E3B2C;
  --night:#07211A;
  --blue:#1E6BFF;
  --blue-soft:#8AB4FF;
  --orange:#FF6A1A;
  --orange-soft:#FFA366;
  --white:#FFFFFF;
  --mist:#E7EFEB;
  --slate:#7C9089;
  --green-ok:#35C97A;
  --red:#D93A2B;

  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC",system-ui,"Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --head-h:74px;
  --cut:22px;
}

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

body{
  min-height:100vh;
  background-color:var(--turf);
  background-image:repeating-linear-gradient(90deg,rgba(30,107,255,.07) 0 1px,transparent 1px 64px);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

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

.skip-link{
  position:absolute;left:8px;top:-72px;z-index:200;
  background:var(--orange);color:var(--night);
  padding:10px 16px;border-radius:2px;
  font-family:var(--font-cn);font-weight:700;font-size:14px;
  letter-spacing:.06em;text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus{top:8px}

.shell{width:min(calc(100% - var(--gutter) * 2),var(--shell));margin-inline:auto}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--night);
  border-bottom:1px solid rgba(138,180,255,.26);
  color:var(--white);
}
.scroll-progress{
  position:absolute;left:0;right:0;top:0;height:3px;
  background:rgba(138,180,255,.16);
  overflow:hidden;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:var(--blue);
  transition:background-color .3s linear;
}
.scroll-progress__bar.is-complete{background:var(--orange)}

.site-header__inner{
  display:flex;align-items:center;
  gap:clamp(10px,2vw,28px);
  min-height:var(--head-h);
  padding-block:10px;
  flex-wrap:nowrap;
}

.brand{
  display:flex;align-items:center;gap:11px;
  text-decoration:none;color:var(--white);
  margin-right:auto;min-width:0;
}
.brand__mark{
  flex:0 0 auto;width:38px;height:38px;
  display:grid;place-items:center;
  background:var(--blue);color:var(--white);
  font-family:var(--font-mono);font-weight:800;font-size:15px;letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{
  font-family:var(--font-cn);font-weight:800;font-size:19px;
  line-height:1.15;letter-spacing:.02em;white-space:nowrap;
}
.brand__meta{
  font-size:11.5px;line-height:1.4;letter-spacing:.1em;
  color:var(--blue-soft);white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  background:transparent;color:var(--mist);
  border:1px solid rgba(138,180,255,.42);border-radius:2px;
  padding:8px 12px;cursor:pointer;
  font-family:var(--font-cn);font-weight:600;font-size:13px;letter-spacing:.12em;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{color:var(--white);border-color:var(--blue-soft)}
.nav-toggle[aria-expanded="true"]{background:var(--blue);border-color:var(--blue);color:var(--white)}
.nav-toggle__bars{
  display:block;position:relative;width:16px;height:2px;
  background:currentColor;
  box-shadow:0 -5px 0 currentColor,0 5px 0 currentColor;
}
.nav-toggle__text{white-space:nowrap}

.site-nav{
  display:flex;align-items:center;gap:8px;
  margin-left:auto;
}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__item{flex:0 0 auto}
.site-nav__link{
  display:block;position:relative;
  padding:11px 13px 9px;
  font-family:var(--font-cn);font-weight:600;font-size:15px;letter-spacing:.04em;
  color:var(--mist);text-decoration:none;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.site-nav__link:hover{color:var(--white);background:rgba(30,107,255,.16)}
.site-nav__link[aria-current="page"]{color:var(--white);border-bottom-color:var(--orange)}

.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  margin-left:10px;padding:10px 20px;
  background:var(--orange);color:var(--night);
  border-radius:999px;text-decoration:none;white-space:nowrap;
  font-family:var(--font-cn);font-weight:700;font-size:14px;letter-spacing:.08em;
  transition:background-color .18s ease,transform .18s ease;
}
.header-cta:hover{background:var(--orange-soft);transform:translateY(-1px)}

/* ============ footer ============ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:var(--night);
  color:var(--mist);
  border-top:1px solid rgba(138,180,255,.26);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:5px;
  background:repeating-linear-gradient(90deg,var(--orange) 0 44px,var(--blue) 44px 88px,transparent 88px 104px);
  opacity:.6;
}
.footer__inner{padding-block:clamp(36px,5vw,64px) 22px}
.footer__grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:clamp(20px,3vw,40px);
}
.footer__brand{max-width:34ch}
.footer__brand-name{
  font-family:var(--font-cn);font-weight:800;font-size:20px;
  color:var(--white);letter-spacing:.02em;
}
.footer__brand-note{
  margin-top:10px;font-size:13.5px;line-height:1.7;color:var(--slate);
}
.footer__cta{
  display:inline-block;margin-top:16px;padding-bottom:3px;
  color:var(--orange);text-decoration:none;
  font-family:var(--font-cn);font-weight:700;font-size:14px;letter-spacing:.06em;
  border-bottom:1px solid rgba(255,106,26,.5);
  transition:color .18s ease,border-color .18s ease;
}
.footer__cta:hover{color:var(--orange-soft);border-color:var(--orange-soft)}

.footer__col{min-width:0}
.footer__col-title{
  font-family:var(--font-cn);font-weight:600;font-size:12.5px;
  letter-spacing:.14em;color:var(--blue-soft);
  padding-bottom:8px;margin-bottom:12px;
  border-bottom:1px solid rgba(138,180,255,.22);
}
.footer__list{display:grid;gap:8px}
.footer__link{
  display:inline-block;font-size:14px;color:var(--mist);
  text-decoration:none;border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.footer__link:hover{color:var(--white);border-bottom-color:var(--orange);transform:translateX(2px)}

.footer__contact{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));
  gap:10px 28px;
  margin-top:clamp(28px,4vw,44px);padding-top:20px;
  border-top:1px solid rgba(138,180,255,.2);
}
.footer__contact-item{
  display:flex;flex-wrap:wrap;gap:8px;align-items:baseline;
  font-size:13.5px;color:var(--mist);line-height:1.6;
}
.footer__contact-label{
  flex:0 0 auto;
  font-family:var(--font-cn);font-weight:600;font-size:11.5px;letter-spacing:.12em;
  color:var(--slate);
  border:1px solid rgba(124,144,137,.5);border-radius:2px;
  padding:2px 6px;
}
.footer__meta{
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;
  margin-top:20px;padding-top:14px;
  border-top:1px solid rgba(138,180,255,.14);
  font-size:12.5px;letter-spacing:.06em;color:var(--slate);
}
.footer__region{color:var(--slate)}
.footer__icp{font-family:var(--font-mono);letter-spacing:.02em}
.footer__copy{font-family:var(--font-mono);letter-spacing:.02em}

/* ============ typography helpers ============ */
.prose{max-width:64ch;font-size:16px;line-height:1.7;color:var(--mist)}
.prose p+p{margin-top:14px}
.prose h2{
  font-family:var(--font-cn);font-weight:800;font-size:24px;line-height:1.35;
  color:var(--white);margin:32px 0 12px;
}
.prose h3{
  font-family:var(--font-cn);font-weight:700;font-size:19px;line-height:1.4;
  color:var(--white);margin:24px 0 10px;
}
.prose ul{list-style:disc;padding-left:1.25em;display:grid;gap:6px;margin-top:12px}
.prose a{color:var(--blue-soft);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--orange)}
.prose strong{color:var(--white);font-weight:700}

.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px 24px;
  padding-bottom:12px;margin-bottom:clamp(20px,3vw,32px);
  border-bottom:1px solid rgba(138,180,255,.28);
}
.section-head__title{
  display:flex;align-items:center;
  font-family:var(--font-cn);font-weight:800;
  font-size:clamp(20px,2.4vw,32px);line-height:1.25;letter-spacing:.01em;
  color:var(--white);
}
.section-head__title::before{
  content:"";display:inline-block;
  width:6px;height:.86em;margin-right:11px;
  background:var(--orange);transform:skewX(-8deg);
}
.section-head__note{font-size:13.5px;letter-spacing:.04em;color:var(--slate)}

.aside-note{
  border-left:2px solid var(--blue);
  padding:2px 0 2px 14px;
  font-size:13.5px;line-height:1.7;color:var(--slate);
}
.aside-note strong{color:var(--mist)}

.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-cn);font-weight:600;font-size:14px;letter-spacing:.05em;
  color:var(--orange);text-decoration:none;
  border-bottom:1px solid rgba(255,106,26,.45);padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.link-more::after{content:"→";font-family:var(--font-mono);font-weight:700}
.link-more:hover{color:var(--orange-soft);border-bottom-color:var(--orange-soft)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 24px;border:1px solid transparent;border-radius:2px;
  font-family:var(--font-cn);font-weight:700;font-size:15px;letter-spacing:.06em;
  text-decoration:none;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{
  background:var(--orange);color:var(--night);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
}
.btn--primary:hover{background:var(--orange-soft)}
.btn--blue{background:var(--blue);color:var(--white)}
.btn--blue:hover{background:#4d8bff}
.btn--ghost{background:transparent;color:var(--white);border-color:rgba(138,180,255,.5)}
.btn--ghost:hover{border-color:var(--blue);background:rgba(30,107,255,.16)}

/* ============ breadcrumb ============ */
.breadcrumb{padding-block:20px 0;font-size:13px;color:var(--slate)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:var(--blue-soft)}
.breadcrumb__link{color:var(--blue-soft);text-decoration:none}
.breadcrumb__link:hover{color:var(--white)}
.breadcrumb__current{color:var(--mist)}

/* ============ grid ============ */
.grid{display:grid;gap:clamp(16px,2vw,28px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.col--3{grid-column:span 3}
.col--4{grid-column:span 4}
.col--5{grid-column:span 5}
.col--6{grid-column:span 6}
.col--7{grid-column:span 7}
.col--8{grid-column:span 8}
.col--9{grid-column:span 9}
.col--12{grid-column:span 12}

/* ============ panel / tag / metric ============ */
.panel{
  position:relative;
  background:var(--mist);color:var(--night);
  border:1px solid rgba(7,33,26,.14);
  padding:clamp(16px,2vw,24px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
  box-shadow:0 12px 0 -6px rgba(7,33,26,.55);
}
.panel--dark{
  background:rgba(7,33,26,.78);color:var(--mist);
  border-color:rgba(138,180,255,.3);
  box-shadow:0 12px 0 -6px rgba(3,16,13,.75);
}
.panel__label{
  display:inline-flex;align-items:center;
  font-family:var(--font-cn);font-weight:600;font-size:11.5px;letter-spacing:.14em;
  color:var(--blue);text-transform:none;
  border:1px solid currentColor;border-radius:2px;padding:3px 8px;
}
.panel--dark .panel__label{color:var(--blue-soft)}
.panel__title{
  margin-top:12px;
  font-family:var(--font-cn);font-weight:800;font-size:20px;line-height:1.3;letter-spacing:.01em;
}
.panel__body{margin-top:10px;font-size:15px;line-height:1.7}
.panel__body p+p{margin-top:10px}
.panel__foot{
  margin-top:16px;padding-top:12px;
  border-top:1px solid rgba(7,33,26,.14);
}
.panel--dark .panel__foot{border-top-color:rgba(138,180,255,.24)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-cn);font-weight:600;font-size:12px;letter-spacing:.08em;
  padding:5px 9px;border:1px solid currentColor;border-radius:2px;
  color:var(--blue-soft);text-decoration:none;
}
.tag--orange{color:var(--orange)}
.tag--solid{background:var(--blue);border-color:var(--blue);color:var(--white)}
.tag--green{color:var(--green-ok)}
.tag--red{color:var(--red)}

.metric{display:flex;flex-direction:column;gap:6px}
.metric__value{
  display:flex;align-items:baseline;
  font-family:var(--font-mono);font-weight:800;
  font-size:clamp(28px,4vw,56px);line-height:1;
  letter-spacing:-.02em;color:var(--white);
  font-variant-numeric:tabular-nums;
}
.metric__unit{margin-left:6px;font-size:.4em;font-weight:700;color:var(--orange)}
.metric__label{
  font-family:var(--font-cn);font-weight:600;font-size:12.5px;
  letter-spacing:.1em;color:var(--slate);
}
.metric--accent .metric__value{color:var(--orange)}
.metric--xl .metric__value{font-size:clamp(48px,7vw,72px)}

.pulse-block{
  display:inline-block;
  padding:2px 8px;border-radius:2px;
  background:rgba(255,106,26,.18);
  box-shadow:inset 0 0 0 1px rgba(255,106,26,.5);
  color:var(--orange);
  font-family:var(--font-mono);font-weight:800;
  font-variant-numeric:tabular-nums;
}
.pulse-block.is-pulsing{animation:score-pulse .9s ease-out 2}
@keyframes score-pulse{
  0%{background:rgba(255,106,26,.18);color:var(--orange);transform:scale(1)}
  30%{background:var(--orange);color:var(--night);transform:scale(1.08)}
  100%{background:rgba(255,106,26,.18);color:var(--orange);transform:scale(1)}
}

/* ============ media placeholder ============ */
.media{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  background-color:var(--night);
  background-image:repeating-linear-gradient(90deg,rgba(138,180,255,.12) 0 1px,transparent 1px 48px);
  border:1px solid rgba(138,180,255,.3);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media--21x9{aspect-ratio:21/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover}
.media__badge{
  position:absolute;left:0;top:12px;
  padding:6px 12px;
  background:var(--orange);color:var(--night);
  font-family:var(--font-cn);font-weight:700;font-size:12px;letter-spacing:.1em;
  clip-path:polygon(0 0,100% 0,calc(100% - 9px) 100%,0 100%);
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 12px;
  background:rgba(7,33,26,.84);
  color:var(--mist);font-size:13px;line-height:1.55;
}

/* ============ rail (section index) ============ */
.rail{
  position:sticky;top:calc(var(--head-h) + 22px);
  align-self:start;
  display:grid;gap:10px;
}
.rail__title{
  font-family:var(--font-cn);font-weight:600;font-size:12px;
  letter-spacing:.16em;color:var(--slate);
}
.rail__list{display:grid;gap:2px;border-left:1px solid rgba(138,180,255,.28)}
.rail__link{
  display:block;margin-left:-1px;
  padding:8px 10px;
  border-left:2px solid transparent;
  font-size:14px;color:var(--slate);text-decoration:none;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.rail__link:hover{color:var(--white)}
.rail__link[aria-current]{
  color:var(--orange);font-weight:700;
  border-left-color:var(--orange);
  background:rgba(255,106,26,.08);
}

/* ============ reveal ============ */
.js-ready [data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .5s ease,transform .5s ease;
}
.js-ready [data-reveal].is-visible{opacity:1;transform:none}

/* ============ responsive ============ */
@media (max-width:1024px){
  .col--3,.col--4,.col--5{grid-column:span 6}
  .col--6,.col--7,.col--8,.col--9{grid-column:span 12}
  .rail{position:static;top:auto}
  .rail__list{border-left:1px solid rgba(138,180,255,.28)}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__brand{grid-column:1 / -1;max-width:48ch}
}

@media (max-width:900px){
  :root{--head-h:auto}
  .site-header__inner{
    flex-wrap:wrap;
    gap:10px;
    padding-block:10px 12px;
  }
  .brand{margin-right:0}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .site-nav{
    display:none;
    flex:1 0 100%;
    width:100%;
    margin-left:0;
    padding-top:10px;
    border-top:1px solid rgba(138,180,255,.22);
  }
  .site-header[data-open] .site-nav{display:block;animation:nav-drop .22s ease-out both}
  .site-nav__list{
    display:flex;flex-direction:row;flex-wrap:nowrap;align-items:stretch;
    gap:6px;overflow-x:auto;padding-bottom:8px;
    scroll-snap-type:x proximity;
    -webkit-overflow-scrolling:touch;
  }
  .site-nav__list::-webkit-scrollbar{height:4px}
  .site-nav__list::-webkit-scrollbar-thumb{background:rgba(138,180,255,.4);border-radius:2px}
  .site-nav__item{flex:0 0 auto;scroll-snap-align:start}
  .site-nav__link{
    white-space:nowrap;padding:9px 13px;
    background:rgba(138,180,255,.1);
    border-bottom:none;border-radius:2px;
  }
  .site-nav__link:hover{background:rgba(30,107,255,.22)}
  .site-nav__link[aria-current="page"]{
    background:rgba(255,106,26,.16);color:var(--white);
    box-shadow:inset 0 -2px 0 var(--orange);
  }
  .header-cta{margin:6px 0 0;width:100%}
  @keyframes nav-drop{
    from{opacity:0;transform:translateY(-8px)}
    to{opacity:1;transform:none}
  }
}

@media (max-width:640px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col--3,.col--4,.col--5,.col--6,.col--7,.col--8,.col--9,.col--12{grid-column:span 6}
  .brand__name{font-size:17px}
  .brand__meta{letter-spacing:.06em}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer__meta{justify-content:flex-start}
  .media{--cut:16px}
  .panel{--cut:16px}
}

@media (max-width:420px){
  .nav-toggle__text{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;
  }
  .js-ready [data-reveal]{opacity:1 !important;transform:none !important}
  .pulse-block.is-pulsing{animation:none !important}
  .header-cta:hover,.btn:hover,.footer__link:hover{transform:none !important}
}