:root{
  --ink:#2B1D16;
  --ink-soft:#55636F;
  --navy:#0B2A45;
  --navy-2:#123E63;
  --orange:#FF6A2B;
  --orange-soft:#FFC9AC;
  --cream:#F6F1E7;
  --white:#FFFFFF;
  --cool:#D9DEE4;
  --teal:#17A08C;

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

  --maxw:1240px;
  --gutter:24px;
  --header-h:88px;
  --space-section:96px;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --ease:cubic-bezier(.2,.75,.3,1);

  --grid-line:rgba(11,42,69,.055);
  --grid-line-light:rgba(255,255,255,.045);
  --footer-ink:#E8EDF2;
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background-color:var(--cream);
  background-image:
    repeating-linear-gradient(to right,var(--grid-line) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(to bottom,var(--grid-line) 0 1px,transparent 1px 40px);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%}
img{display:block;height:auto}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.15;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5.6vw,4rem);font-weight:900}
h2{font-size:clamp(1.7rem,3.2vw,2.25rem)}
h3{font-size:1.375rem;line-height:1.3}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--navy);text-decoration:none;transition:color .18s var(--ease)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
.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}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,3vw,32px)}
.section{padding-block:var(--space-section)}
.section--tight{padding-block:calc(var(--space-section) * .55)}
.mono{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12.5px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--navy);
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--orange)}
.lede{font-size:clamp(1.05rem,1.55vw,1.25rem);line-height:1.7;color:var(--ink-soft);max-width:54ch}
.rule{height:1px;border:0;margin:var(--gutter) 0;background:var(--cool)}

.grid{display:grid;gap:var(--gutter)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--6{grid-template-columns:repeat(6,minmax(0,1fr))}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:12px 22px;border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.01em;
  text-align:center;text-decoration:none;cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn--accent{background:var(--orange);color:var(--ink);border-color:var(--orange)}
.btn--accent:hover{background:var(--orange-soft);border-color:var(--orange-soft);color:var(--navy)}
.btn--navy{background:var(--navy);color:var(--white);border-color:var(--navy)}
.btn--navy:hover{background:var(--navy-2);border-color:var(--navy-2);color:var(--white)}
.btn--ghost{background:transparent;color:var(--navy);border-color:var(--cool)}
.btn--ghost:hover{background:var(--white);border-color:var(--navy);color:var(--navy)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;padding-bottom:2px;
  font-weight:700;color:var(--navy);
  background-image:linear-gradient(var(--orange),var(--orange));
  background-repeat:no-repeat;background-size:0 2px;background-position:0 100%;
  transition:background-size .2s var(--ease),color .2s var(--ease);
}
.link-arrow::after{content:"→";font-family:var(--font-mono);font-size:.95em}
.link-arrow:hover{color:var(--orange);background-size:100% 2px}

.skip-link{
  position:fixed;top:10px;left:50%;z-index:200;
  transform:translate(-50%,-180%);
  padding:10px 20px;border-radius:var(--radius-pill);
  background:var(--navy);color:var(--white);
  font-size:14px;font-weight:700;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0);color:var(--white)}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:16px clamp(12px,2.6vw,32px) 16px;
  pointer-events:none;
  transition:padding .2s var(--ease);
}
.progress-rail{
  position:absolute;top:0;left:0;right:0;height:3px;
  background:rgba(11,42,69,.12);
  pointer-events:none;
}
.progress-rail__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--teal) 0%,var(--orange) 100%);
  transition:width .1s linear;
}
.header-shell{
  position:relative;
  display:flex;align-items:center;gap:12px;
  width:100%;max-width:var(--maxw);margin-inline:auto;
  pointer-events:auto;
}

.brand{
  display:inline-flex;align-items:center;gap:10px;flex:none;
  padding:14px 20px 14px 22px;
  border:1px solid transparent;border-radius:var(--radius-pill);
  background:var(--navy);color:var(--white);text-decoration:none;line-height:1;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);
}
.brand:hover{background:var(--navy-2);color:var(--white);transform:translateY(-1px)}
.brand__name{font-size:20px;font-weight:900;letter-spacing:.08em}
.brand__tag{
  display:inline-flex;align-items:center;justify-content:center;
  padding:2px 6px;border-radius:5px;
  background:var(--orange);color:var(--ink);
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.06em;
  transform:translateY(-6px);
}

.nav-capsule{
  display:flex;align-items:center;gap:6px;
  margin-left:auto;padding:6px 8px;
  border:1px solid transparent;border-radius:var(--radius-pill);
  background:var(--navy);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),padding .2s var(--ease),transform .22s var(--ease),opacity .22s var(--ease),visibility .22s;
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-list__item{display:flex}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:var(--radius-pill);
  color:rgba(255,255,255,.78);
  font-size:15px;font-weight:500;line-height:1.2;white-space:nowrap;text-decoration:none;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link::before{
  content:"";position:absolute;left:4px;top:50%;
  width:5px;height:5px;margin-top:-2.5px;border-radius:50%;
  background:var(--orange);opacity:0;transform:scale(.4);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--white);background:rgba(255,255,255,.08)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--white);background:rgba(255,255,255,.13)}
.nav-link[aria-current="page"]::before{opacity:1;transform:scale(1)}

.nav-tail{
  display:flex;align-items:center;gap:8px;
  margin-left:4px;padding-left:10px;
  border-left:1px solid rgba(255,255,255,.16);
}
.nav-index{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.24);
  color:var(--white);font-size:14px;font-weight:500;white-space:nowrap;text-decoration:none;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.nav-index:hover{background:rgba(23,160,140,.24);border-color:var(--teal);color:var(--white)}
.icon-grid{
  display:block;width:15px;height:15px;flex:none;
  color:var(--orange);
  background-image:radial-gradient(circle,currentColor 1.4px,transparent 1.6px);
  background-size:5px 5px;background-position:0 0;background-repeat:repeat;
}
.nav-index:hover .icon-grid{color:var(--white)}
.nav-cta{padding:10px 18px;font-size:14px}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  margin-left:auto;padding:12px 18px;
  border:1px solid transparent;border-radius:var(--radius-pill);
  background:var(--navy);color:var(--white);
  font-size:14px;font-weight:700;cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:var(--navy-2)}
.nav-toggle__bars{
  position:relative;display:block;width:16px;height:2px;border-radius:2px;
  background:currentColor;
}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle__label{letter-spacing:.06em}
.site-header[data-open="true"] .nav-toggle__bars{background:transparent}
.site-header[data-open="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.site-header[data-scrolled="true"]{padding-top:8px;padding-bottom:8px}
.site-header[data-scrolled="true"] .nav-capsule{border-color:rgba(217,222,228,.55)}
.site-header[data-scrolled="true"] .brand{border-color:rgba(217,222,228,.35)}

.breadcrumb{padding-block:18px}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--ink-soft);
}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__link{color:var(--ink-soft);text-decoration:none}
.breadcrumb__link:hover{color:var(--orange)}
.breadcrumb__sep{color:var(--cool)}
.breadcrumb__current{color:var(--navy);font-weight:600}

.card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  padding:28px;border:1px solid var(--cool);border-radius:var(--radius);
  background:var(--white);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--navy)}
.card__no{font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--orange)}
.card__title{margin:0;font-size:1.25rem;font-weight:800;line-height:1.35}
.card__text{margin:0;font-size:15px;line-height:1.75;color:var(--ink-soft)}
.card--navy{background:var(--navy);border-color:var(--navy);color:var(--footer-ink)}
.card--navy .card__title{color:var(--white)}
.card--navy .card__text{color:rgba(232,237,242,.76)}
.card--navy .card__no{color:var(--orange-soft)}

.index-tile{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  min-height:112px;padding:20px;
  border:1px solid var(--cool);border-radius:var(--radius);
  background:var(--white);color:var(--ink);text-decoration:none;
  transition:transform .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.index-tile__no{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;color:var(--ink-soft);transition:color .18s var(--ease)}
.index-tile__title{font-size:1.05rem;font-weight:800;line-height:1.3;color:var(--ink)}
.index-tile__meta{font-size:13px;line-height:1.6;color:var(--ink-soft)}
.index-tile:hover{
  transform:translateY(-2px);border-color:var(--navy);
  background-image:
    repeating-linear-gradient(to right,var(--grid-line) 0 1px,transparent 1px 8px),
    repeating-linear-gradient(to bottom,var(--grid-line) 0 1px,transparent 1px 8px);
}
.index-tile:hover .index-tile__no{color:var(--orange)}
.index-tile:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border:1px solid var(--cool);border-radius:var(--radius-pill);
  background:var(--white);color:var(--navy);
  font-family:var(--font-sans);font-size:14px;font-weight:500;line-height:1.2;cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.chip:hover{border-color:var(--navy)}
.chip[aria-pressed="true"]{background:var(--orange-soft);border-color:var(--orange-soft);color:var(--navy);font-weight:700}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--cool);border-radius:var(--radius-pill);
  background:var(--cream);color:var(--ink-soft);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;line-height:1.4;
}
.tag--teal{background:rgba(23,160,140,.12);border-color:rgba(23,160,140,.35);color:#0E7A6B}
.tag--orange{background:var(--orange-soft);border-color:transparent;color:var(--ink)}

.media{
  position:relative;overflow:hidden;
  border:1px solid var(--cool);border-radius:var(--radius);
  background:var(--white);
}
.media>img,.media>svg{display:block;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--wide{aspect-ratio:21/9}
.media--blueprint{
  background-color:var(--navy);border-color:var(--navy-2);
  background-image:
    repeating-linear-gradient(to right,var(--grid-line-light) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(to bottom,var(--grid-line-light) 0 1px,transparent 1px 40px);
}
.media__caption{
  margin:0;padding:12px 16px;
  border-top:1px solid var(--cool);background:var(--white);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--ink-soft);
}

.js-reveal [data-reveal]{opacity:0;transform:translateY(12px)}
.js-reveal [data-reveal].is-visible{
  opacity:1;transform:translateY(0);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}

.site-footer{
  position:relative;
  padding-block:clamp(48px,6vw,80px) 0;
  background-color:var(--navy);color:var(--footer-ink);
  background-image:
    repeating-linear-gradient(to right,var(--grid-line-light) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(to bottom,var(--grid-line-light) 0 1px,transparent 1px 40px);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--teal) 0%,var(--orange) 55%,var(--orange-soft) 100%);
}
.footer-inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,3vw,32px)}
.footer-top{
  display:grid;grid-template-columns:minmax(230px,1fr) minmax(0,2.4fr);
  gap:clamp(24px,4vw,56px);
  padding-bottom:clamp(26px,4vw,44px);
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.brand--footer{background:transparent;border-color:rgba(255,255,255,.28);color:var(--white)}
.brand--footer:hover{background:rgba(255,255,255,.08);border-color:var(--orange);color:var(--white)}
.footer-tagline{margin:0;max-width:34ch;font-size:15px;line-height:1.75;color:rgba(232,237,242,.72)}
.footer-mono{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--orange)}
.footer-cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(18px,3vw,32px)}
.footer-col{min-width:0}
.footer-col__title{
  display:flex;align-items:baseline;gap:8px;margin:0 0 14px;
  font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--white);
}
.footer-col__no{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--orange)}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;padding-bottom:1px;
  color:rgba(232,237,242,.74);font-size:14.5px;line-height:1.6;text-decoration:none;
  background-image:linear-gradient(var(--orange),var(--orange));
  background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;
  transition:background-size .2s var(--ease),color .2s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--white);background-size:100% 1px}

.footer-contact{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:12px clamp(20px,4vw,48px);
  padding-block:clamp(20px,3vw,28px);
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-contact__item{display:flex;align-items:center;gap:10px;min-width:0;font-size:14.5px}
.footer-contact__label{
  flex:none;padding:3px 9px;
  border:1px solid rgba(23,160,140,.55);border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--teal);
}
.footer-contact__value{color:var(--white);font-weight:500;letter-spacing:.01em;overflow-wrap:anywhere}
.copy-btn{
  flex:none;padding:4px 10px;
  border:1px solid rgba(255,255,255,.24);border-radius:var(--radius-pill);
  background:transparent;color:rgba(232,237,242,.8);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.copy-btn:hover{border-color:var(--orange);color:var(--white)}
.copy-btn[data-copied="true"]{border-color:var(--teal);color:var(--teal);background:rgba(23,160,140,.14)}
.footer-note{
  margin:16px 0 0;max-width:72ch;
  font-size:13px;line-height:1.75;color:rgba(232,237,242,.58);
}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  padding-block:22px 28px;
  font-size:13px;color:rgba(232,237,242,.6);
}
.footer-legal__copy,.footer-legal__icp{margin:0;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em}
.footer-legal__icp{color:rgba(232,237,242,.5)}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:16px;margin-left:auto}

@media (max-width:1080px){
  .nav-link{padding:8px 10px;font-size:14px}
  .nav-link::after{left:10px;right:10px}
  .nav-index{padding:8px 11px;font-size:13px}
  .nav-cta{padding:9px 14px;font-size:13px}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--6{grid-template-columns:repeat(3,minmax(0,1fr))}
}

@media (max-width:960px){
  :root{--header-h:76px;--space-section:56px}
  .site-header{padding:10px 14px}
  .brand{padding:11px 16px 11px 18px}
  .brand__name{font-size:18px}
  .nav-toggle{display:inline-flex}
  .nav-capsule{
    position:fixed;left:14px;right:14px;bottom:14px;top:auto;
    flex-direction:column;align-items:stretch;gap:10px;
    margin:0;padding:14px;
    max-height:min(74vh,560px);overflow:auto;
    border-radius:20px;border-color:rgba(255,255,255,.16);
    transform:translateY(calc(100% + 28px));
    opacity:0;visibility:hidden;
    transition:transform .22s var(--ease),opacity .22s var(--ease),visibility .22s var(--ease);
  }
  .site-header[data-open="true"] .nav-capsule{transform:translateY(0);opacity:1;visibility:visible}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:12px 14px;border-radius:12px;font-size:16px}
  .nav-link::after{display:none}
  .nav-link::before{left:4px}
  .nav-link[aria-current="page"]{background:rgba(255,255,255,.15)}
  .nav-tail{
    flex-direction:column;align-items:stretch;gap:10px;
    margin-left:0;padding-left:0;padding-top:10px;
    border-left:0;border-top:1px solid rgba(255,255,255,.16);
  }
  .nav-index{justify-content:center;padding:12px 14px;font-size:14px}
  .nav-cta{width:100%;padding:13px 18px;font-size:15px}
  .footer-top{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .footer-legal-links{margin-left:0;width:100%}
}

@media (max-width:760px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .grid--6{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card{padding:22px}
  .footer-contact__item{width:100%}
}

@media (max-width:480px){
  .footer-cols{grid-template-columns:1fr}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:10px}
}

@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-reveal [data-reveal]{opacity:1;transform:none}
  .btn:hover,.card:hover,.index-tile:hover,.brand:hover{transform:none}
}