/* =========================================================
   header · mega menu · mobile nav · search · footer · sub hero
   ========================================================= */
.hd{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--hd);color:var(--ink);transition:background-color .45s var(--ease),color .45s var(--ease),box-shadow .45s var(--ease),transform .5s var(--ease)}
.hd::before{content:"";position:absolute;inset:0;background:#fff;opacity:1;transition:opacity .45s var(--ease);box-shadow:0 1px 0 rgba(16,21,31,.07)}
.hd__in{position:relative;height:100%;display:flex;align-items:center;gap:32px}
.hd__logo{display:block;width:150px;flex:none;position:relative}
.hd__logo img{width:100%;height:auto;transition:opacity .35s}
.hd__logo .w{position:absolute;inset:0;opacity:0}
.gnb{flex:1;display:flex;justify-content:center;height:100%}
.gnb__list{display:flex;height:100%;gap:clamp(28px,4.2vw,68px)}
.gnb__item{position:relative;height:100%;display:flex;align-items:center}
.gnb__link{position:relative;font-size:17px;font-weight:600;letter-spacing:-.01em;display:flex;align-items:center;gap:6px;height:100%;transition:color .3s}
.gnb__link::before{content:"";position:absolute;left:50%;bottom:22px;width:0;height:2px;background:var(--blue);transition:width .45s var(--ease),left .45s var(--ease)}
.gnb__item.is-cur .gnb__link,.gnb__item:hover .gnb__link,.gnb__item.is-open .gnb__link{color:var(--blue)}
.gnb__item.is-cur .gnb__link::before,.gnb__item.is-open .gnb__link::before{left:0;width:100%}
.gnb__link .chev{width:10px;height:10px;opacity:.5;transition:transform .35s var(--ease)}
.gnb__item.is-open .chev{transform:rotate(180deg)}
.hd__util{display:flex;align-items:center;gap:22px;flex:none}
.lang{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em}
.lang a{opacity:.42;transition:opacity .3s}
.lang a.is-on,.lang a:hover{opacity:1}
.lang i{width:1px;height:10px;background:currentColor;opacity:.3}
.hd__ico{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;transition:background-color .3s}
.hd__ico svg{width:21px;height:21px}
.hd__ico:hover{background:rgba(16,21,31,.06)}
.hd__burger{display:none}
.hd__burger span{display:block;width:22px;height:2px;background:currentColor;border-radius:2px;transition:transform .4s var(--ease),opacity .3s}
.hd__burger span + span{margin-top:6px}
/* 투명 헤더(어두운 히어로 위) */
.hd--over:not(.is-solid)::before{opacity:0}
.hd--over:not(.is-solid){color:#fff}
.hd--over:not(.is-solid) .hd__logo .w{opacity:1}
.hd--over:not(.is-solid) .hd__logo .b{opacity:0}
.hd--over:not(.is-solid) .gnb__item.is-cur .gnb__link,.hd--over:not(.is-solid) .gnb__item:hover .gnb__link{color:#fff}
.hd--over:not(.is-solid) .gnb__link::before{background:#fff}
.hd--over:not(.is-solid) .hd__ico:hover{background:rgba(255,255,255,.14)}
.hd.is-hidden{transform:translateY(-100%)}
@media (max-width:1024px){
  .gnb,.hd__util .lang{display:none}
  .hd__in{justify-content:space-between}
  .hd__logo{width:124px}
  .hd__burger{display:grid}
  .hd__util{gap:4px}
}

/* ---------- mega ---------- */
.mega{position:fixed;left:0;right:0;top:var(--hd);z-index:99;background:#fff;border-top:1px solid var(--g2);box-shadow:0 30px 60px -30px rgba(11,22,40,.22);visibility:hidden;clip-path:inset(0 0 100% 0);transition:clip-path .55s var(--ease),visibility 0s linear .55s}
.mega.is-open{visibility:visible;clip-path:inset(0 0 0 0);transition:clip-path .55s var(--ease),visibility 0s}
.mega__panel{display:none;padding:44px 0 52px}
.mega__panel.is-on{display:block}
.mega__panel > .wrap{display:grid;grid-template-columns:280px 1fr;gap:56px}
.mega__intro{display:flex;flex-direction:column;gap:14px;padding-right:24px;border-right:1px solid var(--g2)}
.mega__intro strong{font-size:26px;font-weight:700;letter-spacing:-.03em;line-height:1.25}
.mega__intro p{font-size:14px;line-height:1.7;color:var(--g5)}
.mega__intro .tlink{margin-top:auto;align-self:flex-start;font-size:14px}
.mega__intro,.mega__cols > *{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .6s var(--ease)}
.mega.is-open .mega__intro,.mega.is-open .mega__cols > *{opacity:1;transform:none}
.mega.is-open .mega__cols > *:nth-child(2){transition-delay:.05s}
.mega.is-open .mega__cols > *:nth-child(3){transition-delay:.1s}
.mega.is-open .mega__cols > *:nth-child(4){transition-delay:.15s}
.mega__cols{display:grid;gap:28px}
.mega__cols--company{grid-template-columns:repeat(4,1fr);gap:16px}
.mcard{display:flex;flex-direction:column;gap:10px;padding:24px 24px 26px;border-radius:var(--r);background:var(--g1);min-height:168px;transition:background-color .35s var(--ease),color .35s}
.mcard__n{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--g4)}
.mcard strong{font-size:18px;font-weight:700;letter-spacing:-.02em}
.mcard p{font-size:14px;color:var(--g5);line-height:1.55}
.mcard .ar{width:18px;height:18px;margin-top:auto;align-self:flex-end;transition:transform .45s var(--ease)}
.mcard:hover{background:var(--blue);color:#fff}
.mcard:hover p,.mcard:hover .mcard__n{color:rgba(255,255,255,.75)}
.mcard:hover .ar{transform:translateX(4px)}
.mega__cols--products{grid-template-columns:repeat(3,1fr);gap:40px}
.mprod__top{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.mprod__top em{font-size:12px;font-weight:600;color:var(--g4);letter-spacing:.1em}
.mprod__top a{font-size:20px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.mprod__top a:hover{color:var(--blue)}
.mprod__img{display:block;aspect-ratio:16/8;border-radius:12px;overflow:hidden;margin-bottom:20px;background:var(--g1)}
.mprod__img img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.mprod__img:hover img{transform:scale(1.05)}
.mprod__g + .mprod__g{margin-top:16px}
.mprod__g b{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px;letter-spacing:-.005em}
.mprod__g a{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--g5);padding:4px 0;transition:color .25s}
.mprod__g a::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-top:1.5px solid currentColor;transform:rotate(45deg);opacity:.5;margin-right:3px}
.mprod__g a:hover{color:var(--blue)}
.dim{position:fixed;inset:0;z-index:98;background:rgba(11,22,40,.32);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility 0s linear .45s}
.dim.is-on{opacity:1;visibility:visible;transition:opacity .45s var(--ease)}

/* ---------- mobile nav ---------- */
.mnav{position:fixed;inset:0;z-index:120;background:#fff;display:flex;flex-direction:column;transform:translateX(100%);visibility:hidden;transition:transform .55s var(--ease),visibility 0s linear .55s}
.mnav.is-open{transform:none;visibility:visible;transition:transform .55s var(--ease)}
.mnav__top{height:var(--hd);display:flex;align-items:center;justify-content:space-between;padding:0 var(--pad);border-bottom:1px solid var(--g2);flex:none}
.mnav__top img{width:124px}
.mnav__close{width:40px;height:40px;display:grid;place-items:center}
.mnav__close svg{width:22px;height:22px}
.mnav__body{flex:1;overflow:auto;padding:12px var(--pad) 32px}
.mnav__item{border-bottom:1px solid var(--g2)}
.mnav__btn{width:100%;display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:22px;font-weight:700;letter-spacing:-.02em;text-align:left}
.mnav__btn svg{width:14px;height:14px;transition:transform .35s var(--ease)}
.mnav__item.is-open .mnav__btn svg{transform:rotate(180deg)}
.mnav__sub{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s var(--ease)}
.mnav__item.is-open .mnav__sub{grid-template-rows:1fr}
.mnav__sub > div{overflow:hidden}
.mnav__sub ul{padding:0 0 20px}
.mnav__sub li a{display:block;padding:9px 0;font-size:16px;color:var(--g6)}
.mnav__sub .grp{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--blue);padding:14px 0 4px;text-transform:uppercase}
.mnav__foot{padding:20px var(--pad) calc(20px + env(safe-area-inset-bottom));border-top:1px solid var(--g2);display:flex;justify-content:space-between;align-items:center;gap:16px;flex:none;font-size:14px}
.mnav__foot .lang{font-size:14px}
.mnav__foot a.tel{font-weight:700}

/* ---------- search ---------- */
.srch{position:fixed;inset:0;z-index:130;background:rgba(255,255,255,.98);display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility 0s linear .4s}
.srch.is-open{opacity:1;visibility:visible;transition:opacity .4s var(--ease)}
.srch__top{height:var(--hd);display:flex;align-items:center;justify-content:flex-end}
.srch__body{flex:1;display:flex;flex-direction:column;justify-content:flex-start;padding-top:clamp(40px,12vh,140px)}
.srch form{display:flex;align-items:center;gap:16px;border-bottom:2px solid var(--ink);padding-bottom:16px;transform:translateY(16px);transition:transform .6s var(--ease)}
.srch.is-open form{transform:none}
.srch input{flex:1;border:0;outline:0;background:none;font-size:clamp(26px,3.4vw,44px);font-weight:600;letter-spacing:-.03em;min-width:0}
.srch input::placeholder{color:var(--g3)}
.srch form button svg{width:34px;height:34px}
.srch__kw{margin-top:36px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.srch__kw span{font-size:13px;font-weight:600;color:var(--g5);margin-right:8px;letter-spacing:.1em}
.srch__kw a{font-size:15px;padding:9px 16px;border-radius:999px;background:var(--g1);transition:background-color .3s,color .3s}
.srch__kw a:hover{background:var(--ink);color:#fff}

/* ---------- footer ---------- */
.ft{background:var(--navy);color:rgba(255,255,255,.62);font-size:14px;line-height:1.7}
.ft__top{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:64px 0 40px;border-bottom:1px solid rgba(255,255,255,.1)}
.ft__logo{width:176px}
.ft__call{display:flex;align-items:center;gap:20px;color:#fff}
.ft__call small{font-size:13px;color:rgba(255,255,255,.55)}
.ft__call a.num{font-size:22px;font-weight:700;letter-spacing:-.01em}
.ft__mid{display:grid;grid-template-columns:repeat(3,1fr) 1.15fr;gap:40px;padding:44px 0 48px}
.ft__mid h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:-.005em}
.ft__mid dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px}
.ft__mid dt{color:rgba(255,255,255,.42)}
.ft__mid dd a:hover{color:#fff}
.ft__nav{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px}
.ft__nav a{color:rgba(255,255,255,.7);transition:color .25s}
.ft__nav a:hover{color:#fff}
.ft__bot{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 0 32px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.ft__bot nav{display:flex;gap:22px}
.ft__bot nav a:first-child{color:#fff;font-weight:600}
.ft__top-btn{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.25);display:grid;place-items:center;color:#fff;transition:background-color .3s}
.ft__top-btn:hover{background:rgba(255,255,255,.1)}
.ft__top-btn svg{width:16px;height:16px}
@media (max-width:1024px){.ft__mid{grid-template-columns:1fr 1fr}.ft__top{flex-direction:column;align-items:flex-start}}
@media (max-width:640px){.ft__mid{grid-template-columns:1fr;gap:28px}.ft__bot{flex-direction:column;align-items:flex-start}.ft__bot nav{flex-wrap:wrap;gap:8px 18px}}

/* ---------- sub hero ---------- */
.shero{position:relative;color:#fff;background:var(--navy);overflow:hidden;height:clamp(380px,36vw,520px);display:flex;align-items:flex-end}
.shero__bg{position:absolute;inset:0}
.shero__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 2.4s var(--ease)}
.is-in .shero__bg img,.shero.is-in .shero__bg img{transform:scale(1)}
.shero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,14,28,.6) 0%,rgba(7,14,28,0) 32%),linear-gradient(90deg,rgba(7,14,28,.84) 0%,rgba(7,14,28,.56) 45%,rgba(7,14,28,.26) 100%),linear-gradient(0deg,rgba(7,14,28,.55),rgba(7,14,28,0) 45%)}
.shero > .wrap{position:relative;padding-bottom:clamp(92px,8vw,116px);display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
.shero__t{display:flex;flex-direction:column;gap:18px;max-width:760px}
.shero h1{font-size:clamp(36px,4.4vw,64px);line-height:1.15;font-weight:700;letter-spacing:-.04em}
.shero h1 small{display:block;font-size:13px;font-weight:600;letter-spacing:.24em;color:rgba(255,255,255,.7);margin-top:14px}
.shero p{font-size:clamp(15px,1.3vw,18px);line-height:1.7;color:rgba(255,255,255,.82)}
.shero__side{flex:none;border-left:1px solid rgba(255,255,255,.4);padding:4px 0 4px 18px;font-size:12px;font-weight:600;letter-spacing:.22em;line-height:1.9;color:rgba(255,255,255,.78);text-transform:uppercase}
@media (max-width:768px){.shero__side{display:none}.shero{height:auto;min-height:360px;padding-top:var(--hd)}}

/* breadcrumb with dropdown (아이파킹식) */
.crumb{position:absolute;left:0;right:0;bottom:0;z-index:3;border-top:1px solid rgba(255,255,255,.16);background:rgba(7,14,28,.28);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.crumb .wrap{display:flex;height:60px;align-items:stretch;padding-bottom:0}
.crumb__home{width:60px;display:grid;place-items:center;border-left:1px solid rgba(255,255,255,.16);border-right:1px solid rgba(255,255,255,.16)}
.crumb__home svg{width:18px;height:18px}
.crumb__dd{position:relative;min-width:240px;border-right:1px solid rgba(255,255,255,.16)}
.crumb__dd > button{width:100%;height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 22px;font-size:15px;font-weight:600;color:#fff;text-align:left}
.crumb__dd > button svg{width:12px;height:12px;transition:transform .3s var(--ease)}
.crumb__dd.is-open > button svg{transform:rotate(180deg)}
.crumb__dd ul{position:absolute;left:-1px;right:-1px;top:100%;background:#fff;color:var(--ink);box-shadow:0 20px 40px -12px rgba(11,22,40,.3);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .3s var(--ease);max-height:60vh;overflow:auto}
.crumb__dd.is-open ul{opacity:1;visibility:visible;transform:none}
.crumb__dd li a{display:block;padding:11px 22px;font-size:15px;color:var(--g6)}
.crumb__dd li a:hover,.crumb__dd li a.is-on{color:var(--blue);background:var(--blue-ll)}
.crumb__dd li a.is-on{font-weight:700}
@media (max-width:768px){.crumb__dd{min-width:0;flex:1}.crumb__dd > button{padding:0 14px;font-size:14px}.crumb__home{width:52px}.crumb .wrap{padding:0}}

/* in-page tab bar (sticky) */
.ptabs{position:sticky;top:var(--hd);z-index:20;background:#fff;border-bottom:1px solid var(--g2)}
.ptabs ul{display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.ptabs ul::-webkit-scrollbar{display:none}
.ptabs a{display:block;padding:20px 22px;font-size:15px;font-weight:600;color:var(--g5);white-space:nowrap;position:relative}
.ptabs a::after{content:"";position:absolute;left:22px;right:22px;bottom:-1px;height:2px;background:var(--blue);transform:scaleX(0);transition:transform .4s var(--ease)}
.ptabs a.is-on{color:var(--ink)}
.ptabs a.is-on::after{transform:none}

/* bottom CTA panel (공통) */
.cta{padding:0 0 var(--sec)}
.cta__box{position:relative;border-radius:var(--r-l);overflow:hidden;color:#fff;min-height:400px;display:flex;align-items:center;isolation:isolate}
.cta__bg{position:absolute;inset:0;z-index:-1}
.cta__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 2s var(--ease)}
.cta__box.is-in .cta__bg img{transform:scale(1)}
.cta__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,18,42,.9) 0%,rgba(6,18,42,.7) 42%,rgba(6,18,42,.25) 100%)}
.cta__in{width:100%;display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;padding:clamp(48px,6vw,80px)}
.cta h2{font-size:clamp(28px,3vw,44px);line-height:1.3;font-weight:700;letter-spacing:-.04em;margin-top:18px}
.cta__r{display:flex;flex-direction:column;gap:12px}
.cta__r p{font-size:16px;line-height:1.75;color:rgba(255,255,255,.8);margin-bottom:12px}
.cta__row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 22px 20px 24px;border-radius:14px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:background-color .35s var(--ease),border-color .35s}
.cta__row:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4)}
.cta__row--blue{background:var(--blue);border-color:var(--blue)}
.cta__row--blue:hover{background:var(--blue-d);border-color:var(--blue-d)}
.cta__row strong{display:block;font-size:20px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.cta__row small{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-top:2px}
.cta__row .ib{width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.14);display:grid;place-items:center;flex:none}
.cta__row .ib svg{width:20px;height:20px}
@media (max-width:900px){.cta__in{grid-template-columns:1fr;gap:28px}.cta__box{border-radius:var(--r)}}
@media (max-width:640px){.cta{padding-left:0;padding-right:0}.cta .wrap{padding:0 12px}}