:root{
  --ink:#132430;
  --ink-2:#1d3442;
  --teal:#0E8A94;
  --teal-deep:#0A6E77;
  --teal-soft:#7FC9CE;
  --mist:#EEF3F4;
  --line:#D5DEE2;
  --slate:#50626D;
  --muted:#7B8C96;
  --gold:#C98A2E;
  --white:#FFFFFF;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Public Sans",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.6;font-feature-settings:"tnum" 0}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-deep)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:100;background:var(--white);padding:8px 12px}

h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,4.4vw,3.5rem);letter-spacing:-.02em}
h2{font-size:clamp(1.85rem,3.4vw,2.7rem);max-width:22ch}
h3{font-size:1.3rem;line-height:1.25}
p{margin:0 0 1em}
.lede{font-size:clamp(1.08rem,1.6vw,1.25rem);color:var(--slate);max-width:60ch}
.small{font-size:.9rem;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;letter-spacing:-.01em}
.brand svg{width:30px;height:30px;flex:none}
.brand span{font-weight:400;color:var(--slate)}
.nav{display:flex;gap:26px;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-size:.95rem}
.nav a:hover{color:var(--teal-deep)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:600;font-size:.98rem;text-decoration:none;border:1.5px solid transparent;line-height:1.2}
.btn-primary{background:var(--teal);color:var(--white)}
.btn-primary:hover{background:var(--teal-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--white)}
.btn-light{background:var(--white);color:var(--ink)}
.nav .btn{padding:9px 16px;color:var(--white)}
.menu{display:none}
@media (max-width:900px){
  .nav{display:none}
  .menu{display:block;position:relative}
  .menu summary{list-style:none;cursor:pointer;padding:8px 14px;border:1.5px solid var(--ink);border-radius:999px;font-weight:600;font-size:.95rem}
  .menu summary::-webkit-details-marker{display:none}
  .menu[open] .menu-panel{display:flex}
  .menu-panel{display:none;flex-direction:column;position:absolute;right:0;top:calc(100% + 10px);background:var(--white);border:1px solid var(--line);border-radius:14px;padding:10px;min-width:220px;box-shadow:0 12px 30px rgba(19,36,48,.14)}
  .menu-panel a{padding:10px 12px;color:var(--ink);text-decoration:none;border-radius:8px}
  .menu-panel a:hover{background:var(--mist)}
}

/* hero */
.hero{padding:clamp(40px,7vw,96px) 0 clamp(48px,7vw,88px)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,72px);align-items:center}
.hero h1{max-width:17ch;margin-bottom:24px}
.hero .lede{margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-photo{position:relative;border-radius:22px;overflow:hidden;aspect-ratio:4/5;background:var(--mist)}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 35%}
.hero-photo figcaption{position:absolute;left:14px;bottom:14px;right:14px;background:rgba(19,36,48,.82);color:var(--white);font-size:.85rem;padding:10px 14px;border-radius:10px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(40px,6vw,72px);border-top:1px solid var(--line)}
.facts div{padding:18px 18px 0 0;border-right:1px solid var(--line);margin-right:18px}
.facts div:last-child{border-right:0}
.facts b{display:block;font-family:var(--serif);font-size:1.25rem;font-weight:600;margin-bottom:2px}
.facts span{color:var(--slate);font-size:.93rem}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-photo{aspect-ratio:4/3;order:-1}
  .facts{grid-template-columns:1fr 1fr;row-gap:18px}
  .facts div:nth-child(2){border-right:0}
}
@media (max-width:520px){.facts{grid-template-columns:1fr}.facts div{border-right:0;margin-right:0;padding-right:0}}

/* sections */
.section{padding:clamp(64px,9vw,120px) 0}
.section-mist{background:var(--mist)}
.section-ink{background:var(--ink);color:#E6EDF0}
.section-ink h2,.section-ink h3{color:var(--white)}
.section-ink .lede{color:#B9C8CF}
.head{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,72px);align-items:start;margin-bottom:clamp(36px,5vw,60px)}
.head .lede{margin:0}
@media (max-width:900px){.head{grid-template-columns:1fr}}

/* data path comparison */
.paths{display:grid;gap:18px}
.path{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:24px 26px;display:grid;grid-template-columns:210px 1fr;gap:28px;align-items:center}
.path h3{font-size:1.15rem}
.path p{margin:6px 0 0;color:var(--slate);font-size:.95rem}
.flow{display:flex;align-items:center;gap:0;flex-wrap:nowrap;min-width:0}
.node{flex:none;padding:10px 14px;border-radius:10px;font-size:.9rem;font-weight:600;background:var(--mist);color:var(--ink);text-align:center;line-height:1.25}
.node small{display:block;font-weight:400;color:var(--slate);font-size:.78rem}
.node.out{background:#FBEBD3;color:#6B4510}
.node.out small{color:#8A5E20}
.node.own{background:#DCEFF0;color:var(--teal-deep)}
.link{flex:1;min-width:28px;position:relative;height:2px;background:var(--line);margin:0 8px}
.link::after{content:"";position:absolute;right:-1px;top:-4px;border:5px solid transparent;border-left:7px solid var(--line);border-right:0}
.link.bi::before{content:"";position:absolute;left:-1px;top:-4px;border:5px solid transparent;border-right:7px solid var(--line);border-left:0}
.link.hot{background:var(--gold)}
.link.hot::after{border-left-color:var(--gold)}
.link.hot::before{border-right-color:var(--gold)}
.link.cool{background:var(--teal)}
.link.cool::after{border-left-color:var(--teal)}
.link span{position:absolute;top:8px;left:50%;transform:translateX(-50%);font-size:.72rem;color:var(--muted);white-space:nowrap}
@media (max-width:900px){
  .path{grid-template-columns:1fr;gap:16px}
  .flow{flex-direction:column;align-items:stretch}
  .link{width:2px;height:26px;min-width:0;flex:none;margin:6px auto}
  .link::after{right:auto;left:-4px;top:auto;bottom:-1px;border:5px solid transparent;border-top:7px solid var(--line);border-bottom:0}
  .link.bi::before{left:-4px;top:-1px;border:5px solid transparent;border-bottom:7px solid var(--line);border-top:0}
  .link.hot::after{border-top-color:var(--gold);border-left-color:transparent}
  .link.hot::before{border-bottom-color:var(--gold);border-right-color:transparent}
  .link.cool::after{border-top-color:var(--teal);border-left-color:transparent}
  .link span{top:50%;left:14px;transform:translateY(-50%)}
}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step;border-top:2px solid var(--ink)}
.step{padding:22px 22px 0 0}
.step::before{counter-increment:step;content:counter(step);display:block;font-family:var(--serif);font-size:2.4rem;font-weight:600;color:var(--teal);line-height:1;margin-bottom:14px}
.step h3{margin-bottom:8px;font-size:1.15rem}
.step p{color:var(--slate);font-size:.95rem;margin:0}
.modes{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:48px}
.mode{border-left:3px solid var(--teal);padding:4px 0 4px 20px}
.mode.alt{border-left-color:var(--gold)}
.mode h3{font-size:1.1rem;margin-bottom:6px}
.mode p{margin:0;color:var(--slate);font-size:.95rem}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;row-gap:28px}.modes{grid-template-columns:1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* coverage */
.cov{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(28px,5vw,64px);align-items:center}
.cov-figure{margin:0}
.cov-figure svg{width:100%;height:auto;display:block}
.cov-figure figcaption{font-size:.82rem;color:#8FA3AD;margin-top:10px}
.cov-list{list-style:none;margin:0;padding:0}
.cov-list li{padding:16px 0;border-top:1px solid rgba(255,255,255,.14)}
.cov-list li:last-child{border-bottom:1px solid rgba(255,255,255,.14)}
.cov-list b{display:block;color:var(--white);font-size:1.05rem;margin-bottom:2px}
.cov-list span{color:#B9C8CF;font-size:.95rem}
@media (max-width:900px){.cov{grid-template-columns:1fr}}

/* table */
.table-wrap{overflow-x:auto;margin-top:clamp(48px,6vw,72px);border-radius:14px;border:1px solid rgba(255,255,255,.14)}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:640px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.12);vertical-align:top}
thead th{font-weight:600;color:var(--white);background:var(--ink-2)}
tbody th{font-weight:600;color:var(--white)}
td{color:#C9D6DC;font-variant-numeric:tabular-nums}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
.table-note{margin-top:14px;font-size:.85rem;color:#8FA3AD}
.validation{margin-top:40px;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;padding:24px 26px;border-radius:16px;background:rgba(14,138,148,.14);border:1px solid rgba(127,201,206,.3)}
.validation svg{width:40px;height:40px}
.validation h3{font-size:1.15rem;margin-bottom:6px}
.validation p{margin:0;color:#C9D6DC}

/* system */
.sys{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.card{background:var(--white);border:1px solid var(--line);border-radius:20px;overflow:hidden;display:flex;flex-direction:column}
.card .pic{background:var(--mist);overflow:hidden}
.card .pic img{width:100%;height:100%;object-fit:cover}
.card .body{padding:24px 26px 26px}
.card h3{margin-bottom:8px}
.card p{color:var(--slate);font-size:.96rem}
.card ul{margin:0;padding-left:18px;color:var(--slate);font-size:.94rem}
.card li{margin-bottom:4px}
.c-station{grid-column:span 7}
.c-antenna{grid-column:span 5}
.c-rover{grid-column:span 5}
.c-soft{grid-column:span 7}
.c-radio{grid-column:span 6}
.c-deform{grid-column:span 6}
.twin{display:grid;grid-template-columns:1fr 1fr;aspect-ratio:2/1}
.twin img{aspect-ratio:1/1}
.c-antenna .pic{aspect-ratio:4/3}
.c-antenna .pic img{object-position:50% 40%}
.c-rover .pic{aspect-ratio:3/2}
.c-soft .pic{aspect-ratio:16/9;background:#e9eef0}
.c-soft .pic img{object-fit:contain;padding:12px}
.spec{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;margin:14px 0 0;font-size:.9rem}
.spec dt{color:var(--muted)}
.spec dd{margin:0;color:var(--ink);font-variant-numeric:tabular-nums}
.plain .body{padding:28px}
@media (max-width:900px){.sys>*{grid-column:1/-1!important}}

/* security */
.sec{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,72px)}
.checks{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}
.checks li{position:relative;padding-left:28px;font-size:.96rem}
.checks li::before{content:"";position:absolute;left:0;top:.42em;width:14px;height:8px;border-left:2.5px solid var(--teal);border-bottom:2.5px solid var(--teal);transform:rotate(-45deg)}
.mech{display:grid;gap:14px}
.mech article{border:1px solid var(--line);border-radius:16px;padding:20px 22px;background:var(--white)}
.mech h3{font-size:1.1rem;margin-bottom:6px}
.mech p{margin:0;color:var(--slate);font-size:.95rem}
.patent{display:inline-block;margin-top:22px;font-size:.92rem;color:var(--teal-deep);font-weight:600}
@media (max-width:900px){.sec{grid-template-columns:1fr}.checks{grid-template-columns:1fr}}

/* ownership table */
.owntbl{width:100%;border-collapse:separate;border-spacing:0;min-width:620px;font-size:.96rem}
.own-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:var(--white)}
.owntbl th,.owntbl td{padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink)}
.owntbl thead th{background:var(--white);font-family:var(--serif);font-size:1.12rem}
.owntbl thead th:last-child{background:var(--teal);color:var(--white)}
.owntbl tbody th{font-weight:600;width:24%}
.owntbl tbody td{color:var(--slate)}
.owntbl tbody td:last-child{background:#F3FAFA;color:var(--ink)}
.owntbl tbody tr:last-child th,.owntbl tbody tr:last-child td{border-bottom:0}

/* R&D */
.rnd{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:start}
.rnd-modes{display:grid;gap:16px}
.rnd-modes div{padding:22px 24px;border-radius:16px;background:var(--ink-2)}
.rnd-modes h3{font-size:1.12rem;margin-bottom:6px}
.rnd-modes p{margin:0;color:#B9C8CF;font-size:.95rem}
@media (max-width:900px){.rnd{grid-template-columns:1fr}}

/* about */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px)}
.about-photo{border-radius:20px;overflow:hidden;aspect-ratio:4/3}
.about-photo img{width:100%;height:100%;object-fit:cover}
.made{grid-column:1/-1;margin-top:8px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.made div{border-top:2px solid var(--teal);padding-top:12px}
.made b{display:block;margin-bottom:4px}
.made span{font-size:.92rem;color:var(--slate)}
.life{columns:2;column-gap:28px;padding-left:18px;color:var(--slate);margin:14px 0 0;font-size:.96rem}
.life li{margin-bottom:6px;break-inside:avoid}
@media (max-width:900px){.about{grid-template-columns:1fr}.made{grid-template-columns:1fr}}
@media (max-width:520px){.life{columns:1}}

/* contact */
.contact{background:var(--teal-deep);color:var(--white)}
.contact h2{color:var(--white)}
.contact .lede{color:#D3ECEE}
.next{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:40px 0 44px;counter-reset:n;border-top:1px solid rgba(255,255,255,.35)}
.next div{padding:18px 20px 0 0}
.next div::before{counter-increment:n;content:counter(n);display:block;font-family:var(--serif);font-size:1.6rem;margin-bottom:8px;color:#BFE6E9}
.next b{display:block}
.next span{color:#D3ECEE;font-size:.93rem}
@media (max-width:900px){.next{grid-template-columns:1fr 1fr;row-gap:20px}}
@media (max-width:520px){.next{grid-template-columns:1fr}}

.site-foot{background:var(--ink);color:#8FA3AD;font-size:.88rem;padding:28px 0}
.foot-row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-foot a{color:#B9C8CF}
.path>*{min-width:0}
.flow{width:100%}

.cov-legend{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:14px;font-size:.88rem;color:#B9C8CF}
.cov-legend i{display:inline-block;width:14px;height:12px;margin-right:8px;vertical-align:-1px}
.cov-legend .st{width:10px;height:10px;border-radius:50%;background:#fff}
.cov-legend .vrs{background:rgba(127,201,206,.5)}
.cov-legend .sc{background:rgba(14,138,148,.45);outline:1px dashed #7FC9CE}

@media (max-width:640px){
  .owntbl{min-width:0}
  .owntbl thead{display:none}
  .owntbl tbody tr{display:block;border-bottom:1px solid var(--line);padding:14px 16px}
  .owntbl tbody tr:last-child{border-bottom:0}
  .owntbl tbody th,.owntbl tbody td{display:block;width:auto;border:0;padding:0;background:none!important}
  .owntbl tbody th{margin-bottom:6px}
  .owntbl tbody td{font-size:.93rem;margin-top:4px}
  .owntbl tbody td::before{content:attr(data-label)": ";font-weight:600;color:var(--muted)}
  .owntbl tbody td:last-child::before{color:var(--teal-deep)}
  .hero-photo{aspect-ratio:1/1}
  .hero-photo img{object-position:50% 25%}
}
@media (max-width:520px){.brand span{display:none}.brand{white-space:nowrap}}