/* V9 visual language, applied to the simplified V10 structure.
   Hero overlay, orbit, palette, typography and radii follow SANI-V9/styles.css. */
:root{
  --ink:#0B1F3A;--text:#3D5A80;--muted:#8296B2;--blue:#1668E3;
  --line:#E2E9F2;--pale:#F1F6FE;--nav:72px;
  --cyan-400:#3FD0E4;--brand-300:#8DB7F7;
  --radius-sm:10px;--radius:14px;--radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(11,31,58,.06);
  --shadow:0 8px 24px -8px rgba(11,31,58,.14);
  --shadow-brand:0 16px 40px -14px rgba(22,104,227,.42);
  --ease:cubic-bezier(.22,.61,.36,1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC",sans-serif;
}
h1,h2,h3{font-weight:700;letter-spacing:-.01em;line-height:1.28}
.wrap{width:min(100% - 48px,1360px)}
.site-nav{align-items:center;gap:8px}
.site-nav>a,.nav-parent{padding:10px 14px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;height:auto}
.nav-parent{gap:5px}.nav-group{height:auto}
.site-nav a[aria-current],.nav-parent.active,.site-nav>a:hover,.nav-parent:hover{background:var(--pale);color:#1559A6}
.site-nav>a::after,.nav-parent::after{left:14px;right:14px;border-radius:2px}
.nav-sub{top:100%;left:0;border-radius:var(--radius);box-shadow:0 20px 48px -16px rgba(11,31,58,.22)}
.nav-sub a{border-radius:var(--radius-sm)}
.home-hero{min-height:clamp(560px,74vh,760px);background:#062247}
.home-hero::after{background:linear-gradient(100deg,#04162F 6%,rgba(6,34,71,.92) 34%,rgba(6,34,71,.55) 62%,rgba(6,34,71,.35) 100%)}
.hero-content{display:flex;align-items:center;gap:56px;min-height:clamp(560px,74vh,760px);padding:80px 0 96px;z-index:2}
.hero-copy{max-width:740px;min-width:0;color:#E4EDF9}
.home-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.28;font-weight:700;letter-spacing:-.01em;color:white;text-shadow:0 2px 24px rgba(0,0,0,.35)}
.home-hero h1 em{background:linear-gradient(96deg,#5FC8FF,#3FD0E4 60%,#8DB7F7);background-clip:text;-webkit-background-clip:text;color:transparent}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--cyan-400);margin-bottom:20px}
.hero-kicker span{padding:5px 12px;border:1px solid rgba(63,208,228,.42);border-radius:999px;background:rgba(23,180,204,.12);white-space:nowrap}
.hero-desc{margin-top:22px;font-size:16.5px;line-height:1.9;color:#B9CCE4;max-width:600px}
.hero-desc.brand-intro{max-width:740px;margin-top:17px;font-size:14px;line-height:1.85;color:#C8D8EA}
.hero-actions{gap:20px;margin-top:34px;flex-wrap:wrap;align-items:center}
.btn{padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;gap:9px;transition:.22s var(--ease)}
.btn-primary{background:linear-gradient(120deg,#1668E3,#1559A6);color:white;box-shadow:var(--shadow-brand)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -14px rgba(22,104,227,.55)}
.btn-light{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.34);color:white;backdrop-filter:blur(8px)}
.btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-ghost{border-color:#CBD7E6;color:#12294A}.btn-ghost:hover{transform:translateY(-2px);border-color:#4C8DF0}
.hero-brandmark{margin-left:auto;flex-shrink:0;text-align:right;color:white}
.hero-signature{width:clamp(280px,30vw,420px);max-width:100%}
.hero-signature span{display:block;font-size:11px;letter-spacing:.28em;color:var(--cyan-400);font-weight:600}
.hero-signature strong{display:flex;align-items:baseline;justify-content:flex-end;gap:6px;font-size:clamp(44px,5.2vw,74px);line-height:1;font-weight:800;letter-spacing:-.03em;margin:10px 0 6px}
.hero-signature strong b{font-weight:800}.hero-signature strong i{font-style:normal;font-size:.55em;color:var(--cyan-400);font-weight:400}
.hero-signature small{font-size:11.5px;letter-spacing:.24em;color:#8FA8C8}
.hero-orbit{position:relative;width:270px;height:270px;margin:18px 0 0 auto}
.hero-orbit i{position:absolute;inset:0;border:1px solid rgba(99,179,237,.24);border-radius:50%;animation:spin 26s linear infinite}
.hero-orbit i:nth-child(2){inset:34px;border-style:dashed;border-color:rgba(63,208,228,.28);animation-duration:34s;animation-direction:reverse}
.hero-orbit i:nth-child(3){inset:78px;border-color:rgba(141,183,247,.3);animation-duration:18s}
.hero-orbit i::after{content:"";position:absolute;top:-3px;left:50%;width:6px;height:6px;border-radius:50%;background:var(--cyan-400);box-shadow:0 0 12px 3px rgba(63,208,228,.7)}
@keyframes spin{to{transform:rotate(360deg)}}
.section-label{font-size:12px;font-weight:700;letter-spacing:.14em;color:#1559A6}.section-label::before{border-radius:2px;width:20px}
.text-link{font-weight:600;border-bottom:0;color:#1559A6}
.direction-link{border-radius:var(--radius-lg);padding:30px;transition:.26s var(--ease);overflow:hidden}
.direction-link:hover{border-color:var(--brand-300);box-shadow:var(--shadow);transform:translateY(-4px)}
.direction-link h3{font-size:18px}.direction-number{color:var(--blue);font-family:ui-monospace,Consolas,monospace;font-weight:700}
.join-actions{gap:14px}.join-actions a,.join-actions a:last-child{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;font-size:21px;transition:.24s var(--ease)}
.join-actions a:hover{border-color:#4C8DF0;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.page-heading{background:linear-gradient(135deg,#062247 0%,#0A3160 52%,#10437F 100%);padding:46px 0 50px}
.page-heading::after{width:520px;height:520px;right:-120px;top:-120px;border:0;box-shadow:none;background:radial-gradient(circle,rgba(63,208,228,.22),transparent 66%)}
.page-heading .page-eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--cyan-400);margin:0 0 14px}
.research-row>img{border-radius:var(--radius-lg)}
.about-paragraph{border-left:3px solid #1668E3}
.jobs-list{gap:14px;margin-top:28px}
.jobs-list>.job-row-intern{grid-column:1/-1}
@media(max-width:600px){.career-tabs{gap:20px;flex-wrap:nowrap}.career-tabs a{font-size:18px;white-space:nowrap}}
.job-row{border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;gap:18px;transition:.24s var(--ease)}
.job-row:hover{border-color:#4C8DF0;box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.job-row h2{font-size:16px;line-height:1.45}.job-direction{font-weight:600;color:#1559A6}
.job-row .go{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted);font-size:18px;transition:.22s}
.job-row:hover .go{color:white;background:var(--blue);border-color:var(--blue);transform:translateX(3px)}
.job-search input{border-radius:999px;background:white}
.apply-note,.apply-box{border:1px solid #DCE9FC;border-radius:var(--radius-lg);background:var(--pale)}
.toast{border-radius:999px}
@media(max-width:1100px){.hero-brandmark{display:none}}
@media(max-width:850px){:root{--nav:76px}.wrap{width:calc(100% - 40px)}.site-nav{align-items:stretch}.nav-parent{justify-content:space-between}.nav-sub{box-shadow:none;border-radius:0}.site-nav>a,.nav-parent{padding:15px 12px}.hero-content{gap:0}.join-actions a{font-size:20px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.home-hero{min-height:490px}.hero-content{min-height:490px;padding:56px 0 70px}.home-hero h1{font-size:40px}.hero-kicker{font-size:10px;gap:8px;letter-spacing:.08em}.hero-kicker span{padding:5px 9px}.hero-desc{font-size:15.5px}.hero-actions{gap:12px;margin-top:28px}.btn{padding:12px 21px;font-size:14px}.direction-link{padding:22px 18px}.direction-link h3{font-size:16px}.join-actions{gap:12px}.join-actions a,.join-actions a:last-child{font-size:18px;padding:18px 15px}.page-heading{padding:26px 0 34px}.job-row{padding:22px 20px}.job-row h2{font-size:16px}.research-row h2{line-height:1.5}}
@media(prefers-reduced-motion:reduce){.hero-orbit i{animation:none}*,*::before,*::after{transition:none!important}}

/* Image-led research overview: two horizontal cards, then three image cards. */
.direction-links{grid-template-columns:repeat(6,minmax(0,1fr));gap:22px}
.direction-link,.direction-link:nth-last-child(-n+2){grid-column:span 2;min-height:0;padding:0;display:flex;flex-direction:column;gap:0;overflow:hidden;border-radius:20px}
.direction-link:nth-child(-n+2){grid-column:span 3;display:grid;grid-template-columns:38% minmax(0,1fr)}
.direction-art{overflow:hidden;background:transparent;min-width:0}
.direction-link:nth-child(-n+2) .direction-art{border-radius:0 18px 18px 0}
.direction-link:nth-child(n+3) .direction-art{border-radius:0 0 18px 18px}
.direction-art img{width:100%;height:174px;object-fit:cover;transform:scale(1.02);transition:transform .5s var(--ease);backface-visibility:hidden}
.direction-link:nth-child(-n+2) .direction-art img{height:100%;min-height:244px;object-fit:cover}
.direction-link:first-child .direction-art img{object-position:right center}
.direction-link:nth-child(3) .direction-art img{object-position:center top}
@media(min-width:1201px){.direction-link:first-child{grid-template-columns:52% minmax(0,1fr)}}
.direction-copy{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding:25px 26px;flex:1;min-width:0}
.direction-link h3{font-size:18px;line-height:1.6;padding:0;margin:0}
.direction-summary{font-size:14px;line-height:1.85;color:#637d9f}
.direction-action{margin-top:auto;padding-top:8px;display:inline-flex;gap:10px;align-items:center;font-size:13px;font-weight:600;color:#1559A6}
.direction-link .go{position:static;font-size:18px;transition:transform .2s}
.direction-link:hover .go{transform:translateX(4px)}
.direction-link:hover .direction-art img{transform:scale(1.055)}
.research-preview .section-head{margin-bottom:32px}
@media(max-width:1100px){.direction-copy{padding:22px}.direction-link h3{font-size:17px}.direction-link:nth-child(-n+2){grid-template-columns:34% minmax(0,1fr)}}
@media(max-width:850px){.direction-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.direction-link,.direction-link:nth-last-child(-n+2),.direction-link:nth-child(-n+2){grid-column:auto;display:flex;flex-direction:column}.direction-link:nth-child(-n+2) .direction-art{border-radius:0 0 18px 18px}.direction-link:nth-child(-n+2) .direction-art img{height:174px;min-height:0}.direction-link:last-child{grid-column:1 / -1;display:grid;grid-template-columns:40% minmax(0,1fr)}.direction-link:last-child .direction-art{border-radius:0 18px 18px 0}.direction-link:last-child .direction-art img{height:100%;min-height:210px}}
@media(max-width:600px){.direction-links{grid-template-columns:1fr;gap:18px}.direction-link,.direction-link:nth-last-child(-n+2),.direction-link:nth-child(-n+2),.direction-link:last-child{grid-column:1;display:flex;flex-direction:column}.direction-art,.direction-link:nth-child(-n+2) .direction-art,.direction-link:last-child .direction-art{border-radius:0 0 18px 18px}.direction-art img,.direction-link:nth-child(-n+2) .direction-art img,.direction-link:last-child .direction-art img{height:auto;aspect-ratio:2/1;min-height:0;object-fit:cover}.direction-copy{padding:22px;gap:12px}.direction-link h3{font-size:18px}}

/* Research detail: image, title and paragraph without a numbered eyebrow. */
.research-row{grid-template-columns:38% 1fr;gap:48px;padding:38px 0}
.research-row h2{margin-bottom:18px}
.research-row:is(#air-interface,#ai-ran,#agent-network,#semantic-communication,#validation)>img{aspect-ratio:auto;height:auto;object-fit:contain;object-position:center}
#validation>div p+p{margin-top:14px}
@media(max-width:850px){.research-row{grid-template-columns:40% 1fr;gap:28px;padding:32px 0}}
@media(max-width:600px){.research-row{grid-template-columns:1fr;gap:22px;padding:30px 0}.research-row h2{margin-bottom:13px}}

/* V9 menu: line chevrons and descriptive dropdown links. */
.site-nav{gap:2px}.site-nav>a,.nav-parent{font-weight:600;color:#1D3A63;gap:7px}
.site-nav>a[aria-current],.nav-parent.active{background:transparent;color:#1559A6}
.site-nav>a:hover,.nav-parent:hover,.nav-parent[aria-expanded="true"]{background:#F1F6FE;color:#1559A6}
.site-nav>a::after,.nav-parent::after{bottom:2px}
.nav-caret{display:inline-block;width:8px;height:8px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-1px,-1px);transition:transform .2s;opacity:.55;flex-shrink:0}
.nav-parent[aria-expanded="true"] .nav-caret{transform:rotate(225deg) translate(-2px,-2px);opacity:1}
.nav-sub{top:calc(100% + 8px);left:0;min-width:322px;border-radius:14px;padding:10px;border:1px solid #E2E9F2;box-shadow:0 20px 48px -16px rgba(11,31,58,.22)}
.nav-group .nav-sub{left:auto;right:0}
.nav-sub::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}
.nav-sub a{display:flex;align-items:flex-start;gap:10px;padding:14px 12px;border-radius:10px}
.nav-sub a>div{flex:1;min-width:0}
.nav-sub strong{display:block;font-size:14.5px;font-weight:600;color:#12294A}
.nav-sub small{display:block;font-size:12.5px;color:#8296B2;margin-top:3px;line-height:1.5}
.nav-sub .submenu-arrow{font-size:13px;color:#AEBBCE;margin-top:2px;transition:.16s}
.nav-sub a:hover strong{color:#1559A6}.nav-sub a:hover .submenu-arrow{color:#1668E3;transform:translate(2px,-2px)}
@media(max-width:850px){.site-nav{align-items:stretch}.nav-group .nav-sub{position:static;min-width:0;box-shadow:none;border:0;border-left:2px solid #E2E9F2;border-radius:0;margin:3px 0 12px 12px;padding:0 8px}.nav-sub::before{display:none}.nav-sub a{padding:12px}.nav-parent{width:100%;justify-content:space-between}}

/* Recruitment: approved collaboration illustration paired with an invitation. */
.join-section{background:linear-gradient(180deg,#fff,#f4f8ff);padding:68px 0}
.join-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:stretch;padding:18px;border:1px solid #E2E9F2;border-radius:24px;overflow:hidden;box-shadow:0 12px 38px -26px #0b315d45;background:white}
.join-visual{position:relative;overflow:hidden;align-self:center;min-height:0;background:#e5f2fb;border-radius:20px}
.join-visual>img{display:block;width:100%;height:auto;object-fit:contain;object-position:center}
.join-copy{padding:20px 18px 20px 0;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-width:0}
.join-copy h2{font-size:30px;line-height:1.45}
.join-description{font-size:15px;color:#637d9f;line-height:1.9;margin-top:22px;max-width:none}
@media(min-width:1440px){.join-description{white-space:nowrap}}
.join-copy .join-actions{display:flex;width:auto;margin-top:29px}
.join-copy .join-actions a{display:inline-flex;align-items:center;justify-content:center;min-width:176px;min-height:48px;padding:12px 20px;font-size:16px;border-radius:999px;gap:18px}
.join-copy .join-actions a:first-child{background:linear-gradient(120deg,#1668E3,#1559A6);color:white;border-color:transparent}
.join-copy .join-actions a:first-child span:last-child{color:white}
.contact-channel{padding:22px 0;border-top:1px solid var(--line)}
.footer-bottom{justify-content:flex-start;flex-wrap:wrap;gap:8px 30px}
.footer-icp:hover{color:#e6f1ff;text-decoration:underline;text-underline-offset:3px}
.contact-channel h3{font-size:16px;margin-bottom:10px}.contact-channel .contact-email{font-size:25px;margin-bottom:6px}
.contact-channel .muted{margin-bottom:8px}.address-note a{color:#1559A6;text-decoration:underline;text-underline-offset:3px}
@media(max-width:1100px){.join-panel{gap:28px;padding:16px}.join-copy{padding:15px 10px 15px 0}.join-copy h2{font-size:27px}.join-description{font-size:14px}.join-copy .join-actions a{font-size:15px}}
@media(max-width:850px){.join-panel{grid-template-columns:1fr;gap:0}.join-copy{padding:28px 14px 12px}.join-section{padding:56px 0}}
@media(max-width:600px){.hero-desc.brand-intro{font-size:15px;line-height:1.85;margin-top:16px}.join-copy{padding:26px 10px 12px}.join-copy h2{font-size:25px}.join-copy .join-actions a{font-size:14px;min-width:166px;padding:12px 18px}.contact-channel .contact-email{font-size:21px}}
@media(prefers-reduced-motion:reduce){.direction-art img,.nav-caret,.submenu-arrow{transition:none!important}}

/* Unified full-bleed mastheads with panoramic, shallow-safe artwork. */
.page-heading{isolation:isolate;background:linear-gradient(110deg,#0c335e,#245e8c 60%,#387ba6)}
.page-heading>.page-heading-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 60%;opacity:.36;filter:blur(10px) saturate(.55);transform:scale(1.025);z-index:-2;pointer-events:none}
.page-heading::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,30,62,.25),rgba(7,30,62,.08) 56%,transparent);z-index:-1;pointer-events:none}
.page-heading::after{display:none}
.page-heading>.wrap{position:relative;z-index:1}
.page-heading .crumb{color:#c6d9ed}
.page-heading .page-eyebrow{color:#9ee8f6}
.page-heading h1{color:#fff}
.page-heading p:not(.page-eyebrow){color:#dfebf7}
@media(max-width:600px){.page-heading>.page-heading-art{object-position:65% center;filter:blur(6px) saturate(.55)}.page-heading::before{background:linear-gradient(90deg,rgba(7,30,62,.35),rgba(7,30,62,.1) 75%,transparent)}}
@media print{.page-heading>.page-heading-art,.page-heading::before{display:none}.page-heading{background:white}.page-heading h1,.page-heading .crumb,.page-heading .page-eyebrow,.page-heading p:not(.page-eyebrow){color:#111}}

/* JD facts and actual list markers in job details. */
.job-facts-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 26px;padding:22px 26px;margin:0 0 42px;background:#f3f7fc;border:1px solid #e1eaf5;border-radius:16px}
.job-facts-grid div{min-width:0}.job-facts-grid dt{font-size:12px;color:#7189a6;margin-bottom:4px}.job-facts-grid dd{font-size:15px;font-weight:600;color:#173e69;margin:0;overflow-wrap:anywhere}
.prose>section{scroll-margin-top:110px}
.prose .jd-group-title{font-size:17px;font-weight:600;color:#173e69;margin:25px 0 8px}
.prose .jd-bullets{list-style:disc;padding-left:24px;margin:8px 0 20px}
.prose .jd-bullets li{font-size:16px;line-height:1.9;color:var(--text);padding-left:4px;margin:9px 0}
.prose .jd-bullets li::marker{color:#1766cd;font-size:.9em}
@media(max-width:600px){.job-facts-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:18px}.job-facts-grid dd{font-size:13px}.prose .jd-group-title{font-size:16px}.prose .jd-bullets{padding-left:20px}.prose .jd-bullets li{font-size:15px;line-height:1.85}}