:root{--red:#c8102e;--red-d:#a30d25;--ink:#1a1a1a;--sub:#555;--mute:#8a8a8a;--line:#dcdcdc;--gray:#f4f4f4;--dark:#222}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Pretendard,"Malgun Gothic","Apple SD Gothic Neo",sans-serif;color:var(--ink);background:#fff;font-size:16px;line-height:1.7;word-break:keep-all}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:900px}

/* utility bar + header */
.util{background:var(--dark);color:#bbb;font-size:12.5px}
.util .wrap{display:flex;justify-content:space-between;align-items:center;height:34px;gap:12px}
.util a{color:#ddd;text-decoration:none;margin-left:18px}
.util a:hover{color:#fff}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hd{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;flex-shrink:0}
.brand img.k{height:28px}.brand .bar{width:1px;height:26px;background:#ccc}.brand img.t{height:19px}
nav{display:flex;align-items:center}
nav a{text-decoration:none;font-size:15px;font-weight:500;padding:0 13px;height:68px;display:flex;align-items:center;border-bottom:3px solid transparent;white-space:nowrap}
nav a:hover{color:var(--red)}
nav a.on{border-bottom-color:var(--red)}
nav a.nav-cta{background:var(--red);color:#fff;height:38px;padding:0 18px;margin-left:10px;border:0;font-weight:600}
nav a.nav-cta:hover{background:var(--red-d);color:#fff}

/* buttons */
.btn{display:inline-block;background:var(--red);color:#fff;text-decoration:none;font-weight:600;padding:13px 26px;font-size:15px;border:1px solid var(--red)}
.btn:hover{background:var(--red-d);border-color:var(--red-d)}
.btn.line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.line:hover{background:var(--ink);color:#fff}
.btn.line-w{background:transparent;color:#fff;border-color:#fff}
.btn.line-w:hover{background:#fff;color:var(--ink)}

/* hero */
.hero{position:relative;background-size:cover;background-position:center right;color:#fff;min-height:480px;display:flex;align-items:center}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.78) 0%,rgba(0,0,0,.55) 45%,rgba(0,0,0,.05) 100%)}
.hero .wrap{position:relative;width:100%}
.eyebrow{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#ddd;margin:0 0 14px;font-weight:600}
.hero h1{font-size:40px;line-height:1.3;margin:0 0 18px;font-weight:700;letter-spacing:-.01em}
.hero-p{max-width:560px;color:#e6e6e6;margin:0 0 30px}
.hero-btns .btn{margin-right:10px}

/* sections */
section{padding:64px 0}
section.gray{background:var(--gray)}
.sec-hd{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:28px;border-bottom:1px solid var(--ink);padding-bottom:12px}
.sec-hd h2{font-size:26px;margin:0;font-weight:700}
.sec-hd p{margin:0;color:var(--sub);font-size:15px}
.sec-link{font-size:14px;text-decoration:none;color:var(--sub)}
.sec-link:after{content:" \203A"}
h2{font-size:24px;margin:0 0 14px;font-weight:700}
h2.sub{margin-top:48px}

/* tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tile{text-decoration:none;display:block}
.tile-img{background:var(--gray);aspect-ratio:16/10;overflow:hidden;display:flex;align-items:center;justify-content:center}
.tile-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.tile:hover .tile-img img{transform:scale(1.04)}
.tile h3{font-size:19px;margin:16px 0 6px}
.tile p{font-size:14.5px;color:var(--sub);margin:0 0 10px}
.more{font-size:14px;color:var(--red);font-weight:600}
.more:after{content:" \203A"}

/* article rows */
.rows{border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:130px 1fr 100px;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);text-decoration:none;align-items:center}
.row:hover .r-title{color:var(--red)}
.r-cat{font-size:13px;color:var(--red);font-weight:600}
.r-title{font-size:17px;font-weight:600}
.r-date{font-size:13.5px;color:var(--mute);text-align:right}
.more-link{margin-top:18px}.more-link a{color:var(--red);font-weight:600;text-decoration:none}

/* 3 cols */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.col{border-top:3px solid var(--red);padding-top:18px}
.col h3{margin:0 0 8px;font-size:19px}
.col p{margin:0;color:var(--sub);font-size:15px}

/* CTA */
.cta{background:var(--gray);border-left:4px solid var(--red);padding:36px 40px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta h2{font-size:22px;margin:0 0 8px}
.cta p{margin:0;color:var(--sub);font-size:15px}
.cta-contact a{display:block;text-decoration:none;font-size:16px}
.cta-contact a.tel{font-size:26px;font-weight:700;margin-bottom:2px}
.cta-btns{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}
.cta-btns a{display:inline-block;font-size:14px;padding:11px 18px}

/* page header */
.phd{background:var(--gray);border-bottom:1px solid var(--line);padding:40px 0 36px}
.phd h1{font-size:32px;margin:10px 0 8px;line-height:1.35}
.phd p{margin:0;color:var(--sub)}
.crumb{font-size:13px;color:var(--mute)}.crumb a{text-decoration:none;color:var(--mute)}.crumb span{margin:0 7px}
.phd.split{padding:0}
.phd-in{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;min-height:280px}
.phd-in>div:first-child{padding:36px 0}
.phd-img{height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff}
.phd-img img{width:100%;height:100%;object-fit:cover}

/* content blocks reused from product bodies */
.two{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:start}
.two img{width:100%}
ul.chk{padding-left:0;list-style:none}
ul.chk li{padding-left:22px;position:relative;margin:9px 0}
ul.chk li:before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;background:var(--red)}
section.alt{background:var(--gray)}
.lead{color:var(--sub);margin:0 0 22px}
.tbl{overflow-x:auto;margin:8px 0 6px}
table{border-collapse:collapse;width:100%;font-size:15px;background:#fff}
th,td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:middle}
th{background:var(--dark);color:#fff;font-weight:600;font-size:14px;border-bottom:0}
tr:hover td{background:#fafafa}
td img.pt{height:34px;vertical-align:middle;margin-right:12px;mix-blend-mode:multiply}
.note{font-size:13px;color:var(--mute);margin-top:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.card{border:1px solid var(--line);padding:22px;background:#fff;text-decoration:none;display:block}
.card h3{margin:0 0 6px;font-size:18px}.card p{margin:0;color:var(--sub);font-size:14.5px}
.tag{display:inline-block;font-size:12px;color:var(--red);font-weight:700;letter-spacing:.04em;margin-bottom:8px;text-transform:uppercase}
.faq details{border-bottom:1px solid var(--line);padding:16px 4px}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:4px;top:-2px;font-size:22px;color:var(--red);font-weight:400}
.faq details[open] summary:after{content:"\2212"}
.faq details p{margin:10px 0 0;color:var(--sub)}

/* article */
.art{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding-top:48px;padding-bottom:24px}
.art-body{font-size:17px;line-height:1.85}
.art-body h2{font-size:23px;margin:44px 0 12px;padding-top:4px}
.art-body p{margin:0 0 18px}
.art-body blockquote{margin:18px 0;padding:14px 20px;background:var(--gray);border-left:4px solid var(--red);font-weight:600}
.art-body blockquote p{margin:0}
.art-body table{font-size:15px}
.art-side{position:sticky;top:96px;align-self:start}
.side-box{border:1px solid var(--line);padding:20px;margin-bottom:18px;font-size:14.5px}
.side-box b{display:block;margin-bottom:8px;font-size:15px}
.side-box p{margin:0 0 10px;color:var(--sub)}
.side-box a{display:block;text-decoration:none;padding:5px 0}
.side-box a.tel{font-size:20px;font-weight:700}
.side-box a:hover{color:var(--red)}

/* glossary */
.gloss{border-top:1px solid var(--ink)}
.g-item{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:18px 4px;border-bottom:1px solid var(--line)}
.g-item dt{font-weight:700;font-size:17px}
.g-item dd{margin:0;color:var(--sub)}

/* footer */
footer{background:var(--dark);color:#aaa;font-size:14px;padding:48px 0 36px;margin-top:40px}
.f-cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.f-cols b{display:block;color:#fff;margin-bottom:10px;font-size:14.5px}
.f-cols a{display:block;color:#aaa;text-decoration:none;padding:3px 0}
.f-cols a:hover{color:#fff}
.f-logo{height:18px;filter:brightness(0) invert(1);opacity:.9;margin-bottom:12px}
.f-cols p{margin:0;line-height:1.8}
.f-note{border-top:1px solid #3a3a3a;margin-top:32px;padding-top:18px;font-size:12.5px;color:#888}

/* responsive */
@media(max-width:1080px){
 .tiles{grid-template-columns:repeat(2,1fr)}
 nav a{padding:0 9px;font-size:14.5px}
}
@media(max-width:860px){
 .util .wrap>span:first-child{display:none}
 .util .wrap{justify-content:flex-end}
 .util a{margin-left:14px}
 .hd{height:auto;flex-wrap:wrap;padding-top:12px}
 nav{width:100%;overflow-x:auto;margin:0 -24px;padding:0 14px;scrollbar-width:none}
 nav::-webkit-scrollbar{display:none}
 nav a{height:46px;padding:0 10px}
 nav a.nav-cta{height:32px;padding:0 14px;margin-left:6px}
 .hero{min-height:420px}
 .hero h1{font-size:28px}
 section{padding:44px 0}
 .cols3,.two,.phd-in,.cta,.f-cols,.art{grid-template-columns:minmax(0,1fr)}
 .phd-in{gap:0}.phd-img{height:200px;margin:0 -24px}
 .phd h1{font-size:25px}
 .cta{padding:26px 22px}
 .row{grid-template-columns:1fr;gap:2px}
 .r-date{text-align:left}
 .g-item{grid-template-columns:1fr;gap:4px}
 .art{gap:24px;padding-top:28px}
 .art-side{position:static}
 .art-body{font-size:16px}
}
@media(max-width:520px){
 .wrap{padding:0 16px}
 nav{margin:0 -16px;padding:0 6px}
 .phd-img{margin:0 -16px}
 .tiles{grid-template-columns:1fr}
 .hero-btns .btn{margin:0 6px 8px 0}
 .util a{margin-left:10px;font-size:12px}
 .util a[href^="mailto"]{display:none}
}
h1,h2,h3,.r-title,.side-box a{overflow-wrap:anywhere}
@media(max-width:860px){.tbl table{min-width:620px}.tbl{margin-left:-16px;margin-right:-16px;padding:0 16px}}

/* ===== v3: memory insight ===== */
.util .wrap{justify-content:space-between}
.util b{color:#fff;font-weight:600}
.util a.util-main{background:var(--red);color:#fff;margin:0;padding:0 14px;height:34px;display:flex;align-items:center;font-weight:600}
.util a.util-main:hover{background:var(--red-d)}
.brand .mi{font-size:12px;line-height:1.15;font-weight:800;letter-spacing:.12em;color:var(--ink)}
nav a.nav-cta{background:var(--ink)}
nav a.nav-cta:hover{background:#000}
.kbadge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--sub);border:1px solid var(--line);background:#fff;padding:4px 10px;margin-top:12px}
.kbadge img{height:16px}
.hero2{background:#15171a;color:#fff;padding:56px 0}
.hero2 .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero2 h1{font-size:38px;line-height:1.3;margin:0 0 16px}
.hero2 .eyebrow{color:#e26b7d}
.psearch{display:flex;max-width:520px;margin-top:26px}
.psearch input{flex:1;font:inherit;font-size:15px;padding:14px 16px;border:1px solid #444;background:#fff;color:var(--ink);min-width:0;border-radius:0}
.psearch button{font:inherit;font-weight:700;background:var(--red);color:#fff;border:0;padding:0 24px;cursor:pointer}
.psearch.big{max-width:none;margin:0 0 20px}.psearch.big input{border-color:var(--ink)}
#cnt{align-self:center;margin-left:14px;color:var(--mute);font-size:14px;white-space:nowrap}
.h2-card{display:block;background:#fff;color:var(--ink);padding:28px;text-decoration:none;border-top:4px solid var(--red)}
.h2-card .h2-tag{font-size:12.5px;font-weight:700;color:var(--red)}
.h2-card b{display:block;font-size:19px;line-height:1.45;margin:8px 0 8px}
.h2-card p{margin:0 0 14px;font-size:14.5px;color:var(--sub)}
.tchips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}
.tc{display:flex;align-items:center;gap:6px;border:1px solid var(--line);padding:5px 10px;font-size:13px;background:#fff}
.tc-k{color:var(--sub)}
.tr{font-weight:700;white-space:nowrap}
.tr.up{color:#c8102e}.tr.down{color:#1f5fbf}.tr.flat{color:#666}
.notice{border:1px solid var(--line);border-left:4px solid var(--ink);background:var(--gray);padding:16px 20px;font-size:14.5px;color:var(--sub)}
.notice b{color:var(--ink)}
h3.fam{font-size:18px;margin:34px 0 4px;padding-left:10px;border-left:3px solid var(--red)}
.fam-spec{font-size:13.5px;color:var(--sub);margin:4px 0 10px}
td.pn{font-family:ui-monospace,Consolas,monospace;font-size:14px;font-weight:600;white-space:nowrap;scroll-margin-top:110px}
td.pn a{text-decoration:none;color:var(--ink)}
td.pn:target{background:#fff3c4}
tr:target td,td:target{background:#fff3c4}
.mute{color:var(--mute)}
.stock{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.stock h2{margin-bottom:6px}.stock p{margin:0;color:var(--sub)}
.stock-c a{display:block;text-decoration:none;font-size:16px}
.stock-c a.tel{font-size:26px;font-weight:700}
.stock-c p{font-size:13.5px;margin-top:8px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.two-col .row{grid-template-columns:92px 1fr 84px}
.about{display:flex;justify-content:space-between;align-items:center;gap:32px;border:1px solid var(--line);padding:32px 36px}
.about h2{margin-bottom:6px}.about p{margin:0;color:var(--sub);max-width:760px}
.about .btn{white-space:nowrap}
.art-sum{font-size:17px;font-weight:600;background:var(--gray);padding:18px 22px;border-left:4px solid var(--red)}
.f-cols b.w{color:#fff;display:inline;margin:0}
.f-main{color:#fff!important;font-weight:600;margin-top:10px}
.tiles{grid-template-columns:repeat(5,1fr);gap:20px}
@media(max-width:1080px){.tiles{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){
 .util .wrap>span:first-child{display:block;font-size:11.5px;line-height:1.3;padding-right:8px}
 .util .wrap{justify-content:space-between}
 .util a.util-main{font-size:12px;padding:0 10px;white-space:nowrap}
 .hero2 .wrap,.stock,.two-col{grid-template-columns:minmax(0,1fr)}
 .hero2 h1{font-size:28px}
 .about{flex-direction:column;align-items:flex-start;padding:24px}
 .tiles{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){.tiles{grid-template-columns:1fr}.util .wrap>span:first-child{display:none}.util .wrap{justify-content:flex-end}}

/* ===== Family site (floating) ===== */
.fam-site{position:fixed;right:20px;bottom:20px;z-index:9999;font-family:Pretendard,"Malgun Gothic","Apple SD Gothic Neo",sans-serif;font-size:14px;line-height:1.4}
.fam-site summary{list-style:none;cursor:pointer;background:var(--red);color:#fff;font-weight:700;padding:11px 20px;border-radius:999px;box-shadow:0 4px 14px rgba(0,0,0,.2);user-select:none}
.fam-site summary::-webkit-details-marker{display:none}
.fam-site summary:hover,.fam-site[open] summary{background:var(--red-d)}
.fam-site summary:after{content:" \25B2";font-size:10px;margin-left:4px}
.fam-site[open] summary:after{content:" \25BC"}
.fam-list{position:absolute;right:0;bottom:calc(100% + 10px);width:max-content;min-width:200px;max-width:calc(100vw - 40px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 6px 24px rgba(0,0,0,.14);padding:6px;overflow:hidden}
.fam-list a{display:block;color:var(--ink);text-decoration:none;padding:10px 14px;border-radius:8px;white-space:normal;overflow-wrap:anywhere}
.fam-list a:hover{background:var(--gray);color:var(--red)}
@media(max-width:480px){.fam-site{right:12px;bottom:12px}.fam-list{max-width:calc(100vw - 24px)}}