:root{--bg:#f7f8f7;--soft:#f2f4f3;--surface:#fff;--ink:#101a17;--muted:rgba(16,26,23,.58);--dark:#0d1714;--footer:#0a110f;--green:#1f6b58;--green-hover:#134a3c;--dark-accent:#7fc4ae;--line:rgba(16,26,23,.07);}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;word-break:keep-all;text-wrap:pretty;-webkit-font-smoothing:antialiased;letter-spacing:0;overflow-x:hidden;}
a{color:var(--green);}a:hover{color:var(--green-hover);}
.skip-link{position:fixed;left:16px;top:12px;z-index:100;transform:translateY(-160%);padding:10px 14px;border-radius:8px;background:var(--green);color:#fff;text-decoration:none;transition:transform .2s;}.skip-link:focus{transform:translateY(0);}
.about-header{position:fixed;top:0;right:0;left:0;z-index:30;display:flex;height:68px;align-items:center;justify-content:space-between;padding:0 max(32px,calc((100vw - 1240px)/2));border-bottom:1px solid rgba(255,255,255,.13);background:rgba(13,23,20,.82);backdrop-filter:blur(16px);color:#fff;}
.about-brand{display:flex;align-items:center;gap:8px;color:inherit;text-decoration:none;font-size:20px;font-weight:650;}.about-brand img{width:27px;height:27px;object-fit:contain;}.about-brand b{font-weight:350;}
.about-header nav{display:flex;align-items:center;gap:22px;}.about-header nav a{color:rgba(255,255,255,.76);font-size:13px;font-weight:600;text-decoration:none;}.about-header nav a:hover{color:#fff;}.about-header .about-header-cta{display:inline-flex;min-height:38px;align-items:center;gap:8px;padding:0 15px;border:1px solid rgba(255,255,255,.3);border-radius:100px;color:#fff;}
.about-intro{position:relative;height:100svh;min-height:680px;overflow:hidden;background:var(--dark);color:#fff;}
.about-intro-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:translate3d(0,var(--intro-y,0),0) scale(var(--intro-scale,1));transform-origin:center;will-change:transform;}
.about-intro-shade{position:absolute;inset:0;background:rgba(5,20,15,.53);}
.about-intro-copy{position:absolute;right:32px;bottom:clamp(104px,15vh,156px);left:max(32px,calc((100vw - 1240px)/2));max-width:980px;transform:translate3d(0,var(--intro-copy-y,0),0);opacity:var(--intro-copy-opacity,1);will-change:transform,opacity;}
.about-overline{display:block;color:var(--green);font-size:11px;font-weight:650;letter-spacing:.24em;text-transform:uppercase;}
.about-intro .about-overline{color:#c7e2d7;}.about-intro h1{margin:18px 0 0;font-size:clamp(44px,6.4vw,96px);font-weight:600;line-height:1.03;letter-spacing:0;}.about-intro h1 strong{font-weight:600;}.about-intro h1 span{color:rgba(255,255,255,.68);font-weight:300;}.about-intro p{max-width:670px;margin:26px 0 0;color:rgba(255,255,255,.8);font-size:17px;font-weight:350;line-height:1.7;}
.about-scroll{position:absolute;right:max(32px,calc((100vw - 1240px)/2));bottom:34px;display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.76);font-size:10px;font-weight:600;letter-spacing:.12em;}.about-scroll i{font-size:18px;font-style:normal;animation:aboutArrow 1.5s ease-in-out infinite;}
.about-chapter{padding:110px 32px;}.about-chapter-light{background:var(--bg);}.about-chapter-dark{background:var(--dark);color:#fff;}
.about-chapter-inner{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:72px;max-width:1240px;margin:0 auto;align-items:center;}
.about-chapter-copy{max-width:520px;}.about-chapter-copy h2,.about-pin-heading h2,.about-final h2{margin:18px 0 0;font-size:clamp(32px,4.1vw,56px);font-weight:600;line-height:1.12;letter-spacing:0;}.about-chapter-copy h2 strong,.about-pin-heading h2 strong,.about-final h2 strong{font-weight:600;}.about-chapter-copy h2 span,.about-pin-heading h2 span,.about-final h2 span{color:rgba(16,26,23,.62);font-weight:300;}.about-chapter-dark .about-overline{color:var(--dark-accent);}.about-chapter-dark .about-chapter-copy h2 span{color:rgba(255,255,255,.56);}
.about-chapter-copy>p{margin:28px 0 0;color:var(--muted);font-size:16px;font-weight:350;line-height:1.7;}.about-chapter-dark .about-chapter-copy>p{color:rgba(255,255,255,.64);}.about-chapter-copy>ul{display:grid;gap:9px;margin:30px 0 0;padding:0;list-style:none;}.about-chapter-copy>ul li{position:relative;padding-left:17px;color:var(--muted);font-size:13.5px;line-height:1.55;}.about-chapter-copy>ul li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:1px;background:var(--green);}.about-chapter-dark .about-chapter-copy>ul li{color:rgba(255,255,255,.64);}
.about-image-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start;}.about-image-pair img{display:block;width:100%;aspect-ratio:3/4.2;border-radius:14px;object-fit:cover;transform:translate3d(0,var(--pair-y,0),0);box-shadow:0 18px 40px -22px rgba(16,26,23,.28);will-change:transform;}.about-image-pair img:nth-child(2){margin-top:42px;}.about-chapter-dark .about-image-pair img{box-shadow:0 22px 48px -26px rgba(0,0,0,.72);}
.about-steps{display:grid;gap:0;margin:30px 0 0;padding:0;list-style:none;border-top:1px solid rgba(255,255,255,.13);}.about-steps li{display:grid;grid-template-columns:44px 1fr;gap:15px;padding:19px 0;border-bottom:1px solid rgba(255,255,255,.13);}.about-steps em{color:var(--dark-accent);font-size:11px;font-style:normal;font-weight:650;}.about-steps strong,.about-steps span{display:block;}.about-steps strong{font-size:15px;}.about-steps span{margin-top:6px;color:rgba(255,255,255,.58);font-size:13.5px;line-height:1.55;}
.about-pin{height:260vh;background:var(--soft);}.about-pin-sticky{position:sticky;top:0;display:grid;height:100vh;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:68px;align-content:center;max-width:1240px;margin:0 auto;padding:88px 32px 48px;overflow:hidden;}.about-pin-heading{align-self:start;}.about-pin-layout{display:grid;grid-template-columns:170px minmax(0,1fr);gap:24px;min-height:490px;}.about-pin-rail{display:grid;align-content:center;gap:7px;margin:0;padding:0;list-style:none;}.about-pin-rail li{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:12px;color:var(--muted);opacity:.5;transition:background .5s cubic-bezier(.22,.61,.36,1),opacity .5s cubic-bezier(.22,.61,.36,1);}.about-pin-rail li.is-active{background:#fff;opacity:1;}.about-pin-rail em{color:var(--green);font-size:10px;font-style:normal;font-weight:650;}.about-pin-rail span{font-size:13px;font-weight:600;}
.about-pin-cards{position:relative;min-width:0;}.about-pin-card{position:absolute;inset:0;display:grid;grid-template-rows:auto minmax(0,1fr);overflow:hidden;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 30px 60px -40px rgba(16,26,23,.35);opacity:0;transform:translateY(26px) scale(.985);pointer-events:none;transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1);}.about-pin-card.is-active{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;}.about-pin-card>div{padding:27px 30px 25px;}.about-pin-card>div>span{color:var(--green);font-size:10px;font-weight:650;letter-spacing:.18em;text-transform:uppercase;}.about-pin-card h3{margin:13px 0 0;font-size:24px;font-weight:650;}.about-pin-card p{margin:12px 0 0;color:var(--muted);font-size:14px;line-height:1.65;}.about-pin-card img{display:block;width:100%;height:100%;min-height:250px;object-fit:cover;}
.about-final{display:flex;min-height:510px;flex-direction:column;align-items:center;justify-content:center;padding:104px 32px;background:#fff;text-align:center;}.about-final-actions{display:flex;gap:10px;margin-top:30px;}.about-action{display:inline-flex;min-height:50px;align-items:center;justify-content:center;gap:10px;padding:0 22px;border:1px solid var(--green);border-radius:100px;font-size:13px;font-weight:650;text-decoration:none;transition:background .45s cubic-bezier(.22,.61,.36,1),color .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1);}.about-action:hover{transform:translateY(-2px);}.about-action-primary{background:var(--green);color:#fff;}.about-action-primary:hover{background:var(--green-hover);color:#fff;}.about-action-secondary{background:#fff;color:var(--green);}.about-action-secondary:hover{background:rgba(31,107,88,.08);}.about-final>p{margin:13px 0 0;color:var(--muted);font-size:12px;}
.about-footer{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:30px;padding:40px max(32px,calc((100vw - 1240px)/2));background:var(--footer);color:rgba(255,255,255,.55);}.about-footer .about-brand{color:#fff;}.about-footer nav{display:flex;justify-content:center;gap:20px;}.about-footer nav a{color:rgba(255,255,255,.68);font-size:12px;text-decoration:none;}.about-footer nav a:hover{color:#fff;}.about-footer p{margin:0;font-size:11px;}
.reveal-item{opacity:0;transform:translateY(26px);transition:opacity .85s cubic-bezier(.22,.61,.36,1),transform .85s cubic-bezier(.22,.61,.36,1);}.reveal-item.is-visible{opacity:1;transform:translateY(0);}.about-image-pair .reveal-item:nth-child(2){transition-delay:.06s;}
@keyframes aboutArrow{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}
@media(max-width:1024px){.about-chapter-inner{gap:46px;}.about-pin-sticky{grid-template-columns:1fr;gap:30px;align-content:center;}.about-pin-heading h2 br{display:none;}.about-pin-layout{grid-template-columns:150px minmax(0,1fr);}.about-footer{grid-template-columns:1fr;text-align:center;}.about-footer .about-brand,.about-footer nav{justify-content:center;}}
@media(max-width:768px){.about-header{height:60px;padding:0 20px;}.about-brand{font-size:17px;}.about-brand img{width:24px;height:24px;}.about-header nav{gap:14px;}.about-header nav>a:first-child{display:none;}.about-intro{min-height:650px;}.about-intro-copy{right:24px;bottom:110px;left:24px;}.about-intro h1{font-size:clamp(42px,12vw,66px);}.about-intro p{font-size:15px;}.about-scroll{right:24px;}.about-chapter{padding:90px 24px;}.about-chapter-inner{grid-template-columns:1fr;gap:46px;}.about-chapter-dark .about-image-pair{order:2;}.about-chapter-dark .about-chapter-copy{order:1;}.about-image-pair{max-width:560px;}.about-pin{height:230vh;}.about-pin-sticky{padding:84px 24px 30px;}.about-pin-layout{grid-template-columns:1fr;gap:14px;min-height:520px;}.about-pin-rail{grid-template-columns:repeat(3,1fr);align-content:start;}.about-pin-rail li{justify-content:center;padding:11px 8px;}.about-pin-rail span{font-size:11px;}.about-pin-cards{min-height:430px;}.about-final{min-height:450px;padding:90px 24px;}.about-footer{padding:38px 24px;}.about-footer nav{flex-wrap:wrap;gap:12px 18px;}}
@media(max-width:480px){.about-intro{min-height:620px;}.about-intro h1{font-size:42px;}.about-intro p{font-size:14px;}.about-scroll{display:none;}.about-image-pair{gap:10px;}.about-image-pair img:nth-child(2){margin-top:28px;}.about-pin-heading h2{font-size:30px;}.about-pin-rail span{display:none;}.about-pin-card>div{padding:23px 22px 20px;}.about-pin-card h3{font-size:21px;}.about-final-actions{width:100%;flex-direction:column;}.about-action{width:100%;}.about-footer p{white-space:normal;}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto;}.about-intro-image,.about-intro-copy,.about-image-pair img{transform:none!important;opacity:1!important;}.reveal-item{opacity:1;transform:none;transition:none;}.about-scroll i{animation:none;}}