/* QuantumTronix — 회사 소개(About). home.css 의 색·글꼴·버튼·푸터를 그대로 쓰고, 이 파일은 About 전용 */
body.qth-about{padding-top:0!important}
.ab{position:relative;overflow:clip}
.ab em{font-style:normal;color:var(--fg60)}
html[lang^="en"] .ab em{font-style:italic}

/* 공통: 작은 머리글 · 본문 */
.ab-k{display:flex;gap:14px;align-items:baseline;white-space:nowrap;margin:0 0 22px;font:400 11px var(--f-mono);letter-spacing:.24em;text-transform:uppercase;color:var(--fg40)}
.ab-k b{font-weight:400;color:var(--warm)}
.ab h2{margin:0 0 28px}
.ab p{color:var(--fg60);font-size:16.5px;line-height:1.75;margin:0 0 18px;max-width:36em;word-break:keep-all}

/* 나타나기 (스크립트가 있을 때만 숨겼다가 보여 줌) */
.ab-js .rv{opacity:0;transform:translateY(26px);filter:blur(8px);transition:opacity 1s var(--ease),transform 1.1s var(--ease),filter 1s var(--ease);transition-delay:var(--d,0s)}
.ab-js .rv.in{opacity:1;transform:none;filter:none}

/* ---------- 첫 화면 ---------- */
.ab-hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;background:radial-gradient(ellipse 60% 55% at 72% 46%,rgba(94,242,214,.07),transparent 70%),var(--bg)}
.ab-field{position:absolute;inset:0;width:100%;height:100%;display:block}
.ab-hero-fade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(to bottom,rgba(3,4,9,0) 55%,rgba(3,4,9,.6) 82%,#030409 100%),linear-gradient(to right,rgba(3,4,9,.65) 0%,rgba(3,4,9,0) 45%)}
.ab-hero-copy{position:relative;z-index:2;padding:0 var(--gx) max(15vh,96px);max-width:58rem}
.ab-kicker{display:flex;align-items:center;gap:12px;margin:0 0 26px!important;font:400 11px/1.2 var(--f-mono)!important;letter-spacing:.24em;text-transform:uppercase;color:var(--fg60)!important}
.ab-kicker i{width:6px;height:6px;border-radius:50%;background:var(--warm);box-shadow:0 0 10px rgba(255,180,94,.7)}
.ab-title{font:400 clamp(40px,5.6vw,92px)/1.08 var(--f-display);letter-spacing:-.03em;margin:0 0 26px;word-break:keep-all;text-shadow:0 16px 38px rgba(0,0,0,.35)}
html[lang^="en"] .ab-title{font-weight:500;line-height:1.02;letter-spacing:-.015em}
.ab-lead{font-size:17px!important;color:var(--fg60)!important;margin-bottom:34px!important}
.ab-down{display:inline-flex;align-items:center;gap:10px;font:400 12px var(--f-mono);letter-spacing:.18em;text-transform:uppercase;color:var(--fg80)}
.ab-down svg{width:14px;height:14px;animation:abBob 2.4s var(--ease) infinite}
@keyframes abBob{50%{transform:translateY(5px)}}
.ab-hero-strip{position:absolute;z-index:2;right:var(--gx);bottom:calc(30px + env(safe-area-inset-bottom,0px));display:flex;align-items:center;gap:14px;font:400 10.5px var(--f-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--fg40)}
.ab-hero-strip i{position:relative;width:120px;height:1px;background:var(--line);overflow:hidden}
.ab-hero-strip i::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--accent),var(--warm));transform-origin:left;transform:scaleX(var(--hp,0))}

/* ---------- 섹션 (그림 + 글) ---------- */
.ab-sec{position:relative;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,110px);align-items:center;max-width:1280px;margin:0 auto;padding:clamp(90px,16vh,170px) var(--gx)}
.ab-sec+.ab-sec{border-top:1px solid rgba(238,243,246,.06)}
.ab-big{font:400 clamp(19px,1.7vw,23px)/1.65 var(--f-display)!important;color:var(--fg80)!important;max-width:30em!important}
html[lang^="en"] .ab-big{font-size:clamp(21px,1.9vw,26px)!important}

/* 01 큰 연도 */
.ab-num{font:400 clamp(96px,15vw,230px)/1 var(--f-display);letter-spacing:-.04em;user-select:none}
.ab-num{filter:drop-shadow(0 18px 40px rgba(255,180,94,.18))}
.ab-num .ab-odo b{color:#e9c27f;text-shadow:0 1px 0 rgba(255,243,214,.35),0 18px 50px rgba(255,180,94,.18)}

/* 연도 숫자 굴러가기 */
.ab-odo{display:inline-flex;overflow:hidden;line-height:1;font-variant-numeric:lining-nums tabular-nums;font-feature-settings:"lnum" 1,"tnum" 1}
.ab-odo .dg{display:inline-block;height:1.32em;overflow:hidden;-webkit-mask-image:linear-gradient(#000,#000);mask-image:linear-gradient(#000,#000)}
.ab-odo .dg>span{display:flex;flex-direction:column;transition:transform 1.6s cubic-bezier(.2,.9,.1,1);transition-delay:var(--dd,0s)}
.ab-odo .dg>span>b{display:block;height:1.32em;line-height:1.32em;font-weight:inherit}

/* 02 연구: 압전 격자 */
.ab-lattice{position:relative;aspect-ratio:1/1;width:100%;max-width:460px;justify-self:center}
.ab-lattice canvas{position:absolute;inset:0;width:100%;height:100%}
.ab-lat-cap{position:absolute;left:0;bottom:-28px;font:400 10.5px var(--f-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--fg40)}
.ab-qs{list-style:none;margin:8px 0 26px;padding:0;max-width:36em}
.ab-qs li{display:grid;grid-template-columns:44px 1fr;gap:10px;padding:16px 0;border-top:1px solid var(--line);font:400 clamp(16.5px,1.35vw,19px)/1.55 var(--f-display);color:var(--fg80);word-break:keep-all}
.ab-qs li:last-child{border-bottom:1px solid var(--line)}
.ab-qs li span{font:400 11px/2 var(--f-mono);letter-spacing:.14em;color:var(--accent)}
html[lang^="en"] .ab-qs li{font-size:clamp(18px,1.5vw,21px)}
.ab-tags{font:400 11.5px/1.9 var(--f-mono)!important;letter-spacing:.12em;color:var(--fg40)!important;text-transform:uppercase}

/* 03 적용: 보석 + 궤도 */
.ab-gem{width:100%;max-width:420px;justify-self:center;aspect-ratio:1/1}
.ab-gem svg{width:100%;height:100%;overflow:visible}
.g-orbit{fill:none;stroke:rgba(238,243,246,.14);stroke-width:.6;stroke-dasharray:2 5;transform-box:view-box;transform-origin:100px 100px;animation:abSpin 60s linear infinite}
.g-o2{stroke:rgba(94,242,214,.22);animation-duration:38s;animation-direction:reverse}
.g-stone{transform-box:view-box;transform-origin:100px 100px;animation:abFloat 7s ease-in-out infinite;filter:drop-shadow(0 0 14px rgba(255,190,110,.35))}
.g-e{fill:#fff;transform-box:view-box;transform-origin:100px 100px;animation:abSpin 9s linear infinite;filter:drop-shadow(0 0 6px #9ff7e6)}
@keyframes abSpin{to{transform:rotate(360deg)}}
@keyframes abFloat{50%{transform:translateY(-5px) scale(1.02)}}
.ab-quote{position:relative;padding-left:22px;font:400 clamp(17px,1.4vw,20px)/1.7 var(--f-display)!important;color:var(--warm)!important}
.ab-quote::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:1px;background:linear-gradient(var(--warm),transparent)}

/* 03 시그니처: AXMAN */
.ab-app{grid-template-columns:minmax(0,6fr) minmax(0,6fr)}
.ab-sig{margin:0;width:100%;max-width:520px;justify-self:center;display:flex;flex-direction:column;gap:22px}
.ab-sig-stage{position:relative;width:100%;aspect-ratio:900/1124;transform:translate3d(0,var(--py,0px),0);transition:transform .2s linear}
.ab-sig-stage::before{content:"";position:absolute;left:-18%;right:-18%;top:6%;bottom:2%;z-index:0;background:radial-gradient(ellipse 50% 46% at 50% 44%,rgba(255,196,120,.22),rgba(255,160,80,.06) 55%,transparent 72%);filter:blur(6px)}
.ab-sig-stage::after{content:"";position:absolute;left:8%;right:8%;bottom:-3%;height:7%;z-index:0;border-radius:50%;background:radial-gradient(ellipse at center,rgba(0,0,0,.75),transparent 70%)}
.ab-sig-fx{position:absolute;left:-22%;top:-6%;width:144%;height:112%;z-index:1;pointer-events:none}
.ab-sig img{position:relative;z-index:2;display:block;width:100%;height:auto;max-width:100%;filter:drop-shadow(0 28px 50px rgba(0,0,0,.55)) drop-shadow(0 0 30px rgba(255,190,110,.12))}
.ab-sig-glint{position:absolute;inset:0;z-index:3;pointer-events:none;-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;background:linear-gradient(112deg,transparent 42%,rgba(255,246,225,.0) 44%,rgba(255,246,225,.55) 50%,rgba(255,246,225,0) 56%,transparent 58%);background-size:300% 100%;background-position:120% 0;mix-blend-mode:screen;animation:abGlint 7s ease-in-out 1.2s infinite}
@keyframes abGlint{0%{background-position:120% 0}45%,100%{background-position:-20% 0}}
.ab-sig figcaption{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center}
.ab-sig figcaption b{font:400 11px var(--f-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--warm)}
.ab-sig figcaption span{font-size:13.5px;color:var(--fg60)}

/* 04 협력 */
.ab-partner{display:block}
.ab-body-wide{max-width:1080px}
.ab-cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px)}
.ab-cols p{max-width:none}
.ab-chain{position:relative;list-style:none;margin:48px 0 0;padding:0;display:flex;justify-content:space-between;gap:8px}
.ab-chain::before{content:"";position:absolute;left:6px;right:6px;top:6px;height:1px;background:linear-gradient(90deg,var(--warm),var(--accent),rgba(94,242,214,.15));transform-origin:left;transform:scaleX(0);transition:transform 1.8s var(--ease) .1s}
.ab-chain.on::before{transform:none}
.ab-chain li{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;gap:14px;font:400 12px var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg60);white-space:nowrap}
.ab-chain li i{width:13px;height:13px;border-radius:50%;background:var(--bg);box-shadow:inset 0 0 0 1px rgba(238,243,246,.35);transition:background .5s,box-shadow .5s;transition-delay:calc(var(--d,0s) + .5s)}
.ab-chain.on li i{background:var(--accent);box-shadow:0 0 0 4px rgba(94,242,214,.12),0 0 14px rgba(94,242,214,.7)}
.ab-chain.on li:first-child i{background:var(--warm);box-shadow:0 0 0 4px rgba(255,180,94,.14),0 0 14px rgba(255,180,94,.7)}
.ab-chain li:first-child span{color:var(--fg)}

/* ---------- 연혁 ---------- */
.ab-tl{position:relative;max-width:1180px;margin:0 auto;padding:clamp(90px,16vh,170px) var(--gx) clamp(80px,12vh,140px);border-top:1px solid rgba(238,243,246,.06)}
.ab-tl-head{margin-bottom:clamp(40px,8vh,90px)}
.ab-tl-track{position:relative}
.ab-tl-svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.tl-ghost{fill:none;stroke:rgba(238,243,246,.1);stroke-width:1;stroke-dasharray:3 6}
.tl-line{fill:none;stroke:url(#abLine);stroke-width:2;stroke-linecap:round}
.tl-glow{fill:none;stroke:url(#abLine);stroke-width:9;stroke-linecap:round;opacity:.18}
.ab-tl-dot{position:absolute;left:0;top:0;width:0;height:0;z-index:3;pointer-events:none;opacity:0;transition:opacity .4s}
.ab-tl-dot.show{opacity:1}
.ab-tl-dot i{position:absolute;left:-7px;top:-7px;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(94,242,214,.25),0 0 18px 4px rgba(94,242,214,.8),0 0 50px 10px rgba(94,242,214,.25)}
.ab-tl-dot .tr{position:absolute;border-radius:50%;background:rgba(160,250,236,.9);pointer-events:none}
.ab-tl-list{position:relative;list-style:none;margin:0;padding:0}
.ab-ms{position:relative;width:50%;padding:0 clamp(40px,6vw,90px) clamp(70px,13vh,140px) 0;text-align:right}
.ab-ms.r{margin-left:50%;padding:0 0 clamp(70px,13vh,140px) clamp(40px,6vw,90px);text-align:left}
.ab-ms:last-child{padding-bottom:0}
.ab-node{position:absolute;top:.55em;right:-9px;width:18px;height:18px;z-index:2}
.ab-ms.r .ab-node{right:auto;left:-9px}
.ab-node i{position:absolute;inset:0;border-radius:50%;background:var(--bg);box-shadow:inset 0 0 0 1px rgba(238,243,246,.35);transition:background .6s,box-shadow .6s}
.ab-node::after{content:"";position:absolute;inset:-2px;border-radius:50%;border:1px solid var(--accent);opacity:0}
.ab-ms.on .ab-node i{background:var(--accent);box-shadow:0 0 0 5px rgba(94,242,214,.14),0 0 20px rgba(94,242,214,.85)}
.ab-ms.on .ab-node::after{animation:abRing 1.6s var(--ease) forwards}
.ab-ms:first-child.on .ab-node i{background:var(--warm);box-shadow:0 0 0 5px rgba(255,180,94,.16),0 0 20px rgba(255,180,94,.85)}
.ab-ms:first-child .ab-node::after{border-color:var(--warm)}
@keyframes abRing{0%{opacity:.9;transform:scale(1)}100%{opacity:0;transform:scale(4.2)}}
.ab-card{opacity:.18;transform:translateY(18px);filter:blur(4px);transition:opacity 1s var(--ease),transform 1.1s var(--ease),filter 1s var(--ease)}
.ab-ms.on .ab-card{opacity:1;transform:none;filter:none}
.ab-card .ab-year{display:inline-flex;align-items:baseline;gap:4px;margin:0 0 10px!important;font:400 clamp(48px,6vw,84px)/1 var(--f-display)!important;letter-spacing:-.03em;color:var(--fg)!important;max-width:none!important}
.ab-year small{font:400 .4em var(--f-mono);letter-spacing:.05em;color:var(--warm)}
.ab-year .ab-odo b{transition:color .8s,text-shadow .8s}
.ab-ms.on .ab-year .ab-odo b{color:#dff8f3;text-shadow:0 0 24px rgba(94,242,214,.35)}
.ab-ms:first-child.on .ab-year .ab-odo b{color:#e9c27f;text-shadow:0 0 24px rgba(255,180,94,.3)}
.ab-card h3{margin:0 0 10px;font:400 clamp(20px,1.8vw,26px)/1.35 var(--f-display);color:var(--fg);word-break:keep-all}
html[lang^="en"] .ab-card h3{font-weight:500;font-size:clamp(22px,2vw,29px)}
.ab-card p{margin:0 0 14px!important;font-size:15.5px!important;max-width:26em!important;display:inline-block}
.ab-tag{display:block;font:400 10.5px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--fg40)}
.ab-ms.next .ab-node i{background:transparent;box-shadow:inset 0 0 0 1px rgba(94,242,214,.6)}
.ab-ms.next.on .ab-node i{background:transparent;box-shadow:inset 0 0 0 1px var(--accent),0 0 16px rgba(94,242,214,.5);animation:abBreath 2.2s ease-in-out infinite}
@keyframes abBreath{50%{box-shadow:inset 0 0 0 1px var(--accent),0 0 2px rgba(94,242,214,.2)}}
.ab-next{display:inline-flex;gap:.18em;color:var(--accent)}
.ab-next::before,.ab-next::after,.ab-next i{content:""}
.ab-dots{display:inline-flex;gap:12px;align-items:center;height:1em}
.ab-dots b{width:10px;height:10px;border-radius:50%;background:var(--accent);opacity:.25;animation:abDot 1.6s ease-in-out infinite}
.ab-dots b:nth-child(2){animation-delay:.2s}.ab-dots b:nth-child(3){animation-delay:.4s}
@keyframes abDot{40%{opacity:1;transform:translateY(-4px)}}

/* ---------- 두 거점 ---------- */
.ab-bases{max-width:980px;margin:0 auto;padding:clamp(70px,12vh,130px) var(--gx);text-align:center}
.ab-bridge{height:110px;margin:6px 0 4px}
.ab-bridge svg{width:100%;height:100%;overflow:visible}
.br-arc{fill:none;stroke:url(#abLine);stroke:rgba(94,242,214,.55);stroke-width:1.2;stroke-dasharray:900;stroke-dashoffset:900;transition:stroke-dashoffset 2.4s var(--ease) .2s;vector-effect:non-scaling-stroke}
.ab-bridge.in .br-arc{stroke-dashoffset:0}
.br-p{fill:#fff;filter:drop-shadow(0 0 5px #5ef2d6)}
.ab-base-row{display:flex;justify-content:space-between;gap:24px}
.ab-base{display:flex;flex-direction:column;gap:6px;text-align:left}
.ab-base+.ab-base{text-align:right;align-items:flex-end}
.ab-base b{font:400 clamp(26px,3vw,40px)/1.1 var(--f-display);color:var(--fg)}
html[lang^="en"] .ab-base b{font-weight:500}
.ab-base span{font-size:14px;color:var(--fg60)}
.ab-base em{font:400 11px var(--f-mono)!important;letter-spacing:.16em;color:var(--warm)!important}

/* ---------- 창업자 ---------- */
.ab-founder{max-width:760px;text-align:center;margin:0 auto;padding:clamp(40px,8vh,90px) var(--gx) clamp(70px,12vh,130px)}
.ab-fd{border-top:1px solid var(--line);padding-top:34px}
.ab-fd-p{font:400 clamp(18px,1.6vw,22px)/1.7 var(--f-display)!important;color:var(--fg80)!important;max-width:none!important}
html[lang^="en"] .ab-fd-p{font-size:clamp(20px,1.8vw,25px)!important}
.ab-fd-names{margin:0 0 10px!important;max-width:none!important;font:400 clamp(28px,3.2vw,44px)/1.2 var(--f-display)!important;letter-spacing:-.02em;color:var(--fg)!important}
html[lang^="en"] .ab-fd-names{font-weight:500}
.ab-fd-n{font:400 11.5px var(--f-mono)!important;letter-spacing:.16em;color:var(--fg40)!important;text-transform:uppercase}

/* ---------- 맺음 ---------- */
.ab-end{position:relative;text-align:center;padding:clamp(90px,16vh,180px) var(--gx) clamp(90px,14vh,160px);background:radial-gradient(ellipse 50% 60% at 50% 55%,rgba(255,180,94,.08),transparent 70%)}
.ab-slogan{margin:0 auto 22px!important;max-width:none!important;font:400 clamp(40px,7vw,108px)/1.08 var(--f-display)!important;letter-spacing:-.03em;color:var(--fg)!important;word-break:keep-all}
html[lang^="en"] .ab-slogan{font-style:italic;font-weight:400}
.ab-slogan .sl{display:inline-block;opacity:0;transform:translateY(.4em);filter:blur(8px);transition:opacity .9s var(--ease),transform 1s var(--ease),filter .9s var(--ease);transition-delay:calc(var(--i) * 45ms)}
.ab-slogan.in .sl{opacity:1;transform:none;filter:none}
.ab-slogan .sl.gold{background:linear-gradient(180deg,#fff3d6 0%,#e7bd78 50%,#a77a3c 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.ab-end-p{margin:0 auto 34px!important}
.ab-end .ctas{justify-content:center}

/* ---------- 휴대폰·태블릿 ---------- */
@media (max-width:900px){
  .ab-sec{grid-template-columns:minmax(0,1fr);gap:40px;padding:90px var(--gx)}
  .ab-num{font-size:clamp(84px,26vw,150px)}
  .ab-lattice,.ab-gem{max-width:300px;justify-self:start}
  .ab-app{grid-template-columns:minmax(0,1fr)}
  .ab-sig{max-width:360px;justify-self:center}
  .ab-cols{grid-template-columns:1fr;gap:0}
  .ab-chain{flex-wrap:wrap;justify-content:flex-start;gap:22px 28px}
  .ab-chain::before{display:none}
  .ab-chain li{flex-direction:row;align-items:center;gap:10px}
  .ab-ms,.ab-ms.r{width:auto;margin-left:0;text-align:left;padding:0 0 76px 48px}
  .ab-ms:last-child{padding-bottom:0}
  .ab-node,.ab-ms.r .ab-node{left:13px;right:auto}
  .ab-hero-strip{display:none}
}
@media (max-width:560px){
  .ab-hero-copy{padding-bottom:92px}
  .ab-title{font-size:clamp(36px,10.5vw,52px)}
  .ab-base-row{flex-direction:column;gap:22px}
  .ab-base+.ab-base{text-align:left;align-items:flex-start}
  .ab-bridge{height:70px}
}
@media (prefers-reduced-motion:reduce){
  .ab-js .rv,.ab-card{opacity:1!important;transform:none!important;filter:none!important;transition:none!important}
  .g-orbit,.g-stone,.g-e,.ab-down svg,.ab-dots b,.ab-sig-glint{animation:none!important}
  .ab-slogan .sl{opacity:1;transform:none;filter:none;transition:none}
}
.ab-fd .ab-k{justify-content:center}
/* 경영진: 회장 · 대표 */
.ab-fd-row{display:flex;justify-content:center;align-items:flex-end;gap:clamp(28px,6vw,90px)}
.ab-fd-p1{display:flex;flex-direction:column;align-items:center}
.ab-fd-p1 .ab-fd-n{margin:0 0 10px!important;color:var(--warm)!important}
.ab-fd-p1 .ab-fd-names{margin:0!important}
.ab-fd-sep{width:1px;height:58px;background:linear-gradient(transparent,rgba(238,243,246,.3),transparent)}
@media (max-width:560px){ .ab-fd-row{flex-direction:column;align-items:center;gap:26px} .ab-fd-sep{width:58px;height:1px;background:linear-gradient(90deg,transparent,rgba(238,243,246,.3),transparent)} }