/* UNBOUND 공장유지보수 — Industrial editorial design system */
:root{--paper:#EDEAE2;--paper2:#E2DED2;--ink:#15171A;--steel:#4A5258;--mute:#5C6369;--sig:#FF5A1F;--sigd:#B83405;--line:#15171A;--hair:rgba(21,23,26,.16);--r:0;
--f:Pretendard,'Apple SD Gothic Neo','Noto Sans KR','Malgun Gothic','Nanum Gothic',system-ui,sans-serif;--m:ui-monospace,'SF Mono',Menlo,Consolas,'Liberation Mono','Apple SD Gothic Neo','Noto Sans KR','Malgun Gothic',monospace}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.7;letter-spacing:-.01em;word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.2;margin:0;letter-spacing:-.03em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(18px,4vw,36px)}
.mono{font-family:var(--m);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin:0 0 .8em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:99}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--sig);outline-offset:2px}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:2px solid var(--ink)}
.head-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand span{display:flex;flex-direction:column;line-height:1.05}
.brand b{font-family:var(--m);font-size:1.02rem;letter-spacing:.1em}
.brand i{font-style:normal;font-size:.72rem;color:var(--mute);letter-spacing:.02em}
.nav ul{display:flex;list-style:none;gap:4px}
.nav a{display:block;padding:8px 14px;text-decoration:none;font-weight:500;font-size:.95rem;border-bottom:3px solid transparent}
.nav a:hover{border-color:var(--ink)}
.nav a[aria-current]{border-color:var(--sig);font-weight:700}
.nav li:last-child a{background:var(--ink);color:var(--paper);margin-left:8px}
.nav li:last-child a:hover{background:var(--sig);color:var(--ink);border-color:transparent}
.navtoggle{display:none;width:48px;height:48px;background:none;border:2px solid var(--ink);cursor:pointer;position:relative}
.bars,.bars::before,.bars::after{position:absolute;left:11px;width:22px;height:2px;background:var(--ink);content:''}
.bars{top:21px}.bars::before{left:0;top:-7px}.bars::after{left:0;top:7px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;font:700 1rem var(--f);text-decoration:none;border:2px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s}
.btn:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 var(--ink)}
.btn-sig{background:var(--sig);color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-lg{min-height:60px;padding:0 34px;font-size:1.08rem}
.btnrow{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-block;font:700 .68rem var(--m);letter-spacing:.1em;background:var(--ink);color:var(--paper);padding:5px 9px;line-height:1}
.chip::before{content:'';display:inline-block;width:6px;height:6px;background:var(--sig);margin-right:6px}
.chip.out{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}

/* home hero */
.hero{border-bottom:2px solid var(--ink)}
.hero-in{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(22px,3.4vw,52px);padding-top:clamp(26px,4.5vw,60px);padding-bottom:clamp(26px,4.5vw,56px)}
.hero-txt{display:flex;flex-direction:column;justify-content:center}
.hero h1{white-space:nowrap;font-size:clamp(2.7rem,5.6vw,5.4rem);font-weight:700;line-height:.98;letter-spacing:-.06em;margin:.1em 0 .28em}
.hero h1::after{content:'';display:block;width:84px;height:10px;background:var(--sig);margin-top:.22em}
.hero .lead{font-size:clamp(1.02rem,1.5vw,1.2rem);max-width:34em}
.hero .sub{color:var(--steel);font-size:.98rem;max-width:34em}
.hero .tel{font-family:var(--m);font-weight:700;font-size:1.05rem;margin:20px 0 0;letter-spacing:.04em}
.hero .tel small{display:block;font-weight:400;color:var(--mute);font-size:.7rem;letter-spacing:.1em}
.hgrid{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:auto auto;gap:10px}
.hg{position:relative;margin:0;background:var(--paper2);border:2px solid var(--ink);overflow:hidden}
.hg img{width:100%;height:100%;object-fit:cover}
.hg-a{grid-row:1/3}
.hg-b{aspect-ratio:685/791}
.hg-c{aspect-ratio:4/3}
.hg .chips{position:absolute;left:8px;bottom:8px}
.hg figcaption{position:absolute;left:0;top:0;background:var(--sig);color:var(--ink);font:700 .66rem var(--m);letter-spacing:.08em;padding:5px 8px}
.rail{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;align-items:center}
.rail .mono{margin:0 6px 0 0}
.band{background:var(--ink);color:var(--paper);font:700 .8rem var(--m);letter-spacing:.14em;overflow:hidden}
.band .wrap{display:flex;gap:clamp(14px,3vw,40px);flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
.band span::before{content:'■ ';color:var(--sig)}

/* page hero (sub pages) */
.phero{border-bottom:2px solid var(--ink)}
.phero-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(22px,4vw,56px);padding-top:clamp(18px,3vw,36px);padding-bottom:clamp(28px,4.5vw,56px);align-items:center}
.phero h1{font-size:clamp(2.2rem,5.2vw,4.3rem);font-weight:700;letter-spacing:-.05em;line-height:1.05;margin:.1em 0 .45em}
.phero h1::after{content:'';display:block;width:64px;height:8px;background:var(--sig);margin-top:.3em}
.phero .lead{font-size:1.08rem;max-width:36em}
.kick{color:var(--sigd);font-weight:700}
.asof{color:var(--mute);margin:14px 0 18px}
.phero-img{border:2px solid var(--ink);background:var(--paper2);aspect-ratio:4/3;overflow:hidden}
.phero-img img{width:100%;height:100%;object-fit:cover}
.phero-media{position:relative}
.phero-media .chips{position:absolute;left:10px;top:10px}
.phero-media .capt{margin:10px 0 0;text-transform:none;letter-spacing:0;font-size:.74rem;line-height:1.5}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;font-size:.8rem;color:var(--mute);margin-bottom:18px}
.crumbs li+li::before{content:'/';margin-right:4px;color:var(--mute)}
.crumbs a{text-decoration:none;border-bottom:1px solid var(--hair)}
.phero.portrait .phero-img{aspect-ratio:auto}

/* sections */
.sec{border-bottom:2px solid var(--ink);padding:clamp(36px,6vw,80px) 0}
.sec-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:clamp(22px,3vw,40px)}
.sec-head .mono{background:var(--ink);color:var(--paper);padding:6px 9px;margin:6px 0 0;letter-spacing:.12em;flex:none}
.sec-head h2{font-size:clamp(1.55rem,3.3vw,2.5rem);font-weight:700;letter-spacing:-.045em;max-width:22em}
.sec-body{max-width:1100px}
.sec-body>p,.sec-body .h3item p{max-width:46em}
.sec.alt{background:var(--paper2)}
.sec.dark{background:var(--ink);color:var(--paper)}
.sec.dark .sec-head .mono{background:var(--sig);color:var(--ink)}
.h3item{border-left:6px solid var(--sig);padding:2px 0 2px 18px;margin:0 0 24px}
.h3item h3{font-size:1.2rem;margin-bottom:.4em}
.list{list-style:none;margin:0 0 1.2em}
.list li{position:relative;padding:8px 0 8px 26px;border-bottom:1px solid var(--hair)}
.list li::before{content:'';position:absolute;left:2px;top:1.05em;width:10px;height:10px;background:var(--sig)}
.list.num{counter-reset:n}
.list.num li::before{counter-increment:n;content:counter(n);background:none;color:var(--sigd);font:700 .85rem var(--m);top:.7em}
.note{border:2px solid var(--ink);background:#fff7ef;padding:16px 20px;margin:0 0 1.2em;max-width:46em}
.note p{margin:0;font-size:.95rem}
.linkrow{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0 0 1em}
.linkrow a{display:inline-block;padding:10px 16px;border:2px solid var(--ink);text-decoration:none;font-weight:700;font-size:.94rem;background:var(--paper)}
.linkrow a:hover{background:var(--ink);color:var(--paper)}

/* tiles (issues / scope) */
.tiles{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0;border:2px solid var(--ink);margin:0 0 1.2em;background:var(--paper)}
.tile{padding:20px 20px 22px;border:1px solid var(--ink);margin:-1px 0 0 -1px;position:relative}
.tile .mono{color:var(--sigd);font-weight:700}
.tile h3{font-size:1.12rem;margin-bottom:.4em}
.tile p{margin:0;font-size:.92rem;color:var(--steel)}
.tile a{text-decoration:none}
.tile a::after{content:'';position:absolute;inset:0}
.tile:hover{background:var(--ink);color:var(--paper)}
.tile:hover p,.tile:hover .mono{color:#d8d4c8}
.tile .badge{position:absolute;right:14px;top:16px;font:700 .62rem var(--m);background:var(--sig);color:var(--ink);padding:3px 6px;letter-spacing:.08em}
.issues{grid-template-columns:repeat(5,1fr)}
.issues .tile h3{font-size:1.05rem}
.scope{grid-template-columns:repeat(4,1fr)}

/* cases */
.cases{display:grid;gap:clamp(22px,3.4vw,44px)}
.case{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:clamp(16px,3vw,36px);border:2px solid var(--ink);background:var(--paper);padding:clamp(12px,2vw,20px);align-items:center}
.case.flip .case-media{order:2}
.case-media{position:relative;display:grid;gap:8px}
.case-media:has(.second){grid-template-columns:1.4fr 1fr}
.case-photo{background:var(--paper2);overflow:hidden;border:1px solid var(--ink);aspect-ratio:4/3}
.case-photo img{width:100%;height:100%;object-fit:cover}
.case-photo.second{aspect-ratio:auto}
.case-media .chips{position:absolute;left:8px;top:8px}
.case-body h3{font-size:clamp(1.25rem,2.4vw,1.7rem);letter-spacing:-.04em;margin-bottom:.5em}
.case-body h3 a{text-decoration:none}
.case-body h3 a:hover{text-decoration:underline;text-decoration-color:var(--sig);text-decoration-thickness:4px}
.case-sum{color:var(--steel);font-size:.98rem}
.flow{margin:0 0 14px;display:grid;gap:0;border-top:2px solid var(--ink)}
.flow>div{display:grid;grid-template-columns:7.2em 1fr;gap:10px;padding:8px 0;border-bottom:1px solid var(--hair);font-size:.92rem}
.flow dt{font:700 .78rem var(--m);color:var(--sigd);letter-spacing:.02em;padding-top:2px}
.flow dd{margin:0}
.more{font-weight:700;text-decoration:none;border-bottom:3px solid var(--sig)}
.more:hover{background:var(--sig)}
.ccards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ccard{display:flex;flex-direction:column;border:2px solid var(--ink);text-decoration:none;background:var(--paper);height:100%}
.ccard:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 var(--ink)}
.ccard-img{aspect-ratio:4/3;overflow:hidden;border-bottom:2px solid var(--ink)}
.ccard-img img{width:100%;height:100%;object-fit:cover}
.ccard-body{padding:12px 14px 16px;display:flex;flex-direction:column;gap:4px;font-size:.88rem}
.ccard-body strong{font-size:1rem;line-height:1.35}
.ccard-body .mono{margin:0}

/* process */
.steps{list-style:none;display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin:0 0 1em;position:relative;counter-reset:s}
.steps li{position:relative;padding:34px 14px 0 0;display:flex;flex-direction:column;gap:6px;font-size:.9rem}
.steps li::before{content:'';position:absolute;left:0;top:11px;right:0;height:3px;background:var(--ink)}
.steps li:last-child::before{right:50%}
.steps li .mono{position:absolute;left:0;top:0;margin:0;background:var(--sig);color:var(--ink);font-weight:700;padding:4px 7px;z-index:1}
.steps li strong{font-size:1rem;line-height:1.35}
.steps li span:last-child{color:var(--steel)}

/* table */
.tablewrap{overflow-x:auto;margin:0 0 1.2em;border:2px solid var(--ink);background:var(--paper)}
.tbl{width:100%;border-collapse:collapse;font-size:.94rem}
.tbl caption{text-align:left;font:700 .75rem var(--m);padding:10px 14px;background:var(--paper2);border-bottom:2px solid var(--ink);letter-spacing:.06em}
.tbl th,.tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--hair);vertical-align:top}
.tbl thead th{background:var(--ink);color:var(--paper);font-size:.82rem;letter-spacing:.04em}
.tbl tbody th{font-weight:700;white-space:nowrap}

/* figures */
.fig{margin:0 0 1.2em;max-width:760px}
.fig-img{border:2px solid var(--ink);overflow:hidden;background:var(--paper2)}
.fig-img img{width:100%;height:100%;object-fit:cover}
.fig figcaption{font-size:.82rem;color:var(--mute);padding-top:8px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-bottom:1.2em}
.gallery .fig{max-width:none;margin:0}
.gallery .fig-img{aspect-ratio:4/3}

/* FAQ */
.faq{max-width:900px;border-top:2px solid var(--ink)}
.faq-item{border-bottom:2px solid var(--ink)}
.faq-item[hidden]{display:none}
.faq-item summary{list-style:none;cursor:pointer;display:flex;gap:14px;align-items:flex-start;padding:16px 8px;min-height:56px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{font-size:1.05rem;font-weight:700;letter-spacing:-.02em;flex:1;line-height:1.45}
.faq-item summary::after{content:'+';font:700 1.5rem/1 var(--m);color:var(--sigd);flex:none}
.faq-item[open] summary::after{content:'−'}
.faq-item[open] summary{background:var(--paper2)}
.q{flex:none;background:var(--ink);color:var(--paper);font:700 .8rem var(--m);width:26px;height:26px;display:grid;place-items:center;margin-top:1px}
.a{padding:4px 8px 20px 48px;max-width:46em}
.a p{margin:0}
.faq-more{margin-top:18px}

/* CTA */
.cta{background:var(--ink);color:var(--paper);background-image:repeating-linear-gradient(-45deg,transparent 0 22px,rgba(255,90,31,.12) 22px 44px)}
.cta-in{display:flex;gap:28px;align-items:center;justify-content:space-between;padding-top:clamp(36px,6vw,72px);padding-bottom:clamp(36px,6vw,72px)}
.cta h2{font-size:clamp(1.4rem,3vw,2.2rem);letter-spacing:-.04em;max-width:22em;margin-bottom:.5em}
.cta p{max-width:38em;color:#d6d2c6}
.cta .mono{color:var(--sig)}
.cta-act{display:flex;flex-direction:column;gap:10px;align-items:flex-start;flex:none}
.cta-act .mono{color:#d6d2c6;margin:0}
.cta .btn:hover{box-shadow:5px 5px 0 var(--paper)}

/* consultation */
.contact{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0 0 1.4em}
.ccta{border:2px solid var(--ink);padding:22px;background:var(--paper)}
.ccta .big{font:700 clamp(1.5rem,4vw,2.3rem) var(--m);letter-spacing:.02em;display:block;margin:6px 0 14px;color:var(--ink);text-decoration:none;line-height:1.1}
.ccta .btn{width:100%}

/* footer */
.site-foot{background:var(--paper2);border-top:2px solid var(--ink)}
.foot-in{display:grid;grid-template-columns:2fr 1fr;gap:28px;padding-top:40px;padding-bottom:28px}
.fname{font-size:1.4rem;font-weight:700;margin:0 0 10px}
address{font-style:normal;display:grid;gap:3px;font-size:.92rem;color:var(--steel)}
address a{color:var(--ink);font-weight:700}
.foot-nav ul{list-style:none;display:grid;gap:2px}
.foot-nav a{display:inline-block;padding:7px 0;text-decoration:none;font-weight:500;border-bottom:1px solid transparent}
.foot-nav a:hover{border-color:var(--ink)}
.foot-bot{border-top:1px solid var(--hair);padding-top:16px;padding-bottom:30px;font-size:.78rem;color:var(--mute)}
.foot-bot p{margin:0}
.notfound{padding:80px 18px}

/* responsive */
@media (max-width:1020px){
  .issues{grid-template-columns:repeat(3,1fr)}
  .scope{grid-template-columns:repeat(2,1fr)}
  .ccards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .steps li:nth-child(3)::before{right:0}
}
@media (max-width:900px){
  .hero-in,.phero-in{grid-template-columns:1fr}
  .case{grid-template-columns:1fr}
  .case.flip .case-media{order:0}
  .cta-in{flex-direction:column;align-items:flex-start}
}
@media (max-width:760px){
  .navtoggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--paper);border-bottom:2px solid var(--ink)}
  .nav.open{display:block}
  .nav ul{flex-direction:column;gap:0;padding:8px 18px 16px}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--hair);min-height:48px}
  .nav li:last-child a{margin:10px 0 0;text-align:center}
  .issues,.scope{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr;gap:0}
  .steps li{padding:0 0 22px 46px;min-height:50px}
  .steps li::before{left:15px;top:0;bottom:0;right:auto;width:3px;height:auto}
  .steps li:last-child::before{right:auto;bottom:50%}
  .steps li .mono{top:0}
  .hgrid{grid-template-columns:1fr 1fr}
  .hg-a{grid-row:auto;grid-column:1/3;aspect-ratio:4/3}
  .hg-b,.hg-c{aspect-ratio:1/1}
  .flow>div{grid-template-columns:1fr;gap:2px}
  .contact{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr}
  .a{padding-left:8px}
  .tbl thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .tbl,.tbl tbody,.tbl tr,.tbl th,.tbl td{display:block;width:100%}
  .tbl tr{border-bottom:2px solid var(--ink);padding:6px 0}
  .tbl th,.tbl td{border:0;padding:6px 14px}
  .tbl caption{display:block;width:100%}
  .tbl td::before{content:attr(data-label);display:block;font:700 .68rem var(--m);color:var(--sigd);letter-spacing:.06em}
  .tbl tbody th{white-space:normal;font-size:1.02rem}
  .case-media:has(.second){grid-template-columns:1fr 1fr}
  .btnrow .btn,.cta-act .btn{width:100%}
}
@media (max-width:420px){
  .issues,.scope{grid-template-columns:1fr}
  .ccards{grid-template-columns:1fr}
  .brand i{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

img[src*='cctv-pole']{object-position:50% 18%}
.acards{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.acard{border:2px solid var(--ink);background:var(--paper);display:flex;flex-direction:column}
.acard-img{display:block;aspect-ratio:4/3;overflow:hidden;border-bottom:2px solid var(--ink)}
.acard-img img{width:100%;height:100%;object-fit:cover}
.acard-body{padding:18px 18px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.acard-body h3{font-size:1.4rem}
.acard-body h3 a{text-decoration:none}
.acard-body .list{margin:0 0 6px}
.acard-body .more{align-self:flex-start;margin-top:auto}
@media (max-width:900px){.acards{grid-template-columns:1fr}}
.figref{max-width:46em;border-left:4px solid var(--sig);padding:6px 0 6px 14px;font-size:.88rem;color:var(--steel);margin:0 0 1em}.figref .mono{display:inline;margin:0 8px 0 0;color:var(--sigd);font-weight:700}
.case.nomedia{grid-template-columns:1fr}