:root{--blue:#086bd3;--navy:#07192e;--ink:#111820;--muted:#6f7c89;--line:#dce3ea;--soft:#f3f6f9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:145px}body{margin:0;color:var(--ink);font-family:"Manrope","Noto Sans KR",sans-serif}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.business-header{height:88px;padding:0 4.6vw;display:flex;align-items:center;justify-content:space-between;position:fixed;z-index:50;top:0;width:100%;background:rgba(255,255,255,.96);border-bottom:1px solid #e6e9ec;backdrop-filter:blur(14px)}.business-brand img{width:300px}.business-header nav{display:flex;gap:clamp(24px,3.6vw,62px);font-size:15px;font-weight:600}.business-header nav a{position:relative}.business-header nav a.active{color:var(--blue)}.business-header nav a.active:after{content:"";position:absolute;left:0;bottom:-14px;width:100%;height:2px;background:var(--blue)}.business-menu{display:none;background:none;border:0}.business-menu i{display:block;width:25px;height:2px;background:#111;margin:6px}.business-hero{height:420px;padding:88px 7vw 0;color:#fff;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;background:linear-gradient(90deg,rgba(2,18,38,.95),rgba(5,49,89,.58)),url("assets/future-tunnel.jpg") center 55%/cover}.business-hero:after{content:"BUSINESS";position:absolute;right:-2vw;bottom:-5vw;font-size:15vw;font-weight:800;color:rgba(255,255,255,.035)}.business-hero p{font-size:11px;letter-spacing:.3em;color:#77baff;font-weight:700}.business-hero h1{font-size:clamp(50px,6vw,82px);margin:10px 0;letter-spacing:-.06em}.business-hero span{color:#c6d3df;line-height:1.7}.business-tabs{height:74px;position:sticky;z-index:30;top:88px;background:#fff;display:flex;justify-content:center;border-bottom:1px solid var(--line)}.business-tabs a{min-width:260px;padding:25px;text-align:center;border-right:1px solid var(--line);font-size:14px;font-weight:700}.business-tabs a:first-child{border-left:1px solid var(--line)}.business-tabs a.active{color:#fff;background:var(--blue)}.products{padding:120px 5vw 140px;background:#fff}.section-heading{text-align:center;margin-bottom:55px}.section-heading small,.partners>small{font-size:10px;letter-spacing:.25em;color:var(--blue);font-weight:700}.section-heading h2,.partners h2{font-size:48px;margin:12px 0 10px;letter-spacing:-.06em}.section-heading p,.partners p{margin:0;color:var(--muted)}.category-tabs{display:grid;grid-template-columns:repeat(3,1fr);max-width:1320px;margin:auto;border:1px solid var(--line)}.category-tabs button{height:68px;border:0;border-right:1px solid var(--line);background:#fff;font:600 17px inherit;cursor:pointer;transition:.25s}.category-tabs button:last-child{border-right:0}.category-tabs button span{font-size:10px;color:#9da7b0;margin-right:13px}.category-tabs button.active{color:#fff;background:var(--blue)}.category-tabs button.active span{color:#bcdcff}.car-stage{position:relative;max-width:1320px;min-height:690px;margin:0 auto;background:linear-gradient(#fff,#f9fbfd);overflow:hidden;border:1px solid var(--line);border-top:0}.car-stage>img{position:absolute;left:3%;right:3%;top:8%;width:94%;height:76%;object-fit:contain}.car-title{position:absolute;z-index:3;top:44px;left:50px;display:flex;align-items:baseline;gap:18px}.car-title b{font-size:38px;letter-spacing:-.05em}.car-title span{font-size:11px;letter-spacing:.1em;color:#a0a9b2}.hotspot{position:absolute;z-index:5;width:38px;height:38px;border:4px solid #fff;border-radius:50%;background:#16a8bf;box-shadow:0 0 0 3px #16a8bf,0 5px 20px rgba(0,59,88,.28);cursor:pointer;transition:.25s}.hotspot:before{content:"";position:absolute;inset:8px;border-radius:50%;background:#fff}.hotspot i{position:absolute;inset:-15px;border:1px solid rgba(7,107,211,.42);border-radius:50%;animation:pulse 2s infinite}.hotspot span{position:absolute;top:44px;left:50%;transform:translateX(-50%);padding:7px 10px;color:#fff;background:var(--navy);font-size:9px;letter-spacing:.12em;white-space:nowrap;opacity:0;transition:.25s}.hotspot:hover,.hotspot.active{background:var(--blue);box-shadow:0 0 0 3px var(--blue),0 7px 24px rgba(0,56,120,.35);transform:scale(1.12)}.hotspot:hover span,.hotspot.active span{opacity:1}.hotspot-powertrain{left:25%;top:53%}.hotspot-chassis{left:67%;top:67%}.hotspot-sensor{left:54%;top:39%}@keyframes pulse{50%{transform:scale(1.3);opacity:.25}}.stage-guide{position:absolute;right:35px;bottom:25px;color:#687582;font-size:13px}.stage-guide b{display:inline-grid;place-items:center;width:18px;height:18px;margin-right:7px;border-radius:50%;color:#fff;background:#ef553c}.product-intro{max-width:1320px;margin:80px auto 35px;padding-bottom:30px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:end}.product-intro small{color:var(--blue);font-weight:700;letter-spacing:.15em}.product-intro h3{font-size:36px;margin:8px 0 0;letter-spacing:-.05em}.product-intro p{max-width:560px;margin:0;color:var(--muted);line-height:1.8;text-align:right}.product-grid{max-width:1320px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{border:1px solid var(--line);background:#fff;overflow:hidden;animation:cardIn .4s both;transition:.3s}.product-card:hover{transform:translateY(-7px);border-color:#9bc1e9;box-shadow:0 20px 40px rgba(5,36,68,.1)}.product-card figure{height:260px;margin:0;padding:22px;background:#f6f8fa;overflow:hidden}.product-card img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply;transition:.4s}.product-card:hover img{transform:scale(1.06)}.product-card div{padding:23px}.product-card small{font-size:9px;letter-spacing:.16em;color:var(--blue);font-weight:700}.product-card h4{font-size:17px;margin:9px 0 5px}.product-card p{margin:0;color:#87919b;font-size:11px}@keyframes cardIn{from{opacity:0;transform:translateY(16px)}}.partners{padding:120px 7vw;text-align:center;background:var(--soft)}footer{padding:50px 7vw;background:#080e16;color:#89939e;display:grid;grid-template-columns:1.2fr 1fr 1fr;align-items:end;font-size:11px;line-height:1.8}footer img{width:245px;filter:grayscale(1) invert(1);opacity:.8}footer span{text-align:right}.reveal{opacity:0;transform:translateY(28px);transition:.7s}.reveal.visible{opacity:1;transform:none}@media(max-width:960px){.business-header{height:74px;padding:0 22px}.business-brand img{width:225px}.business-header nav{display:none;position:fixed;top:74px;left:0;width:100%;background:#fff;padding:30px;flex-direction:column}.business-header nav.open{display:flex}.business-menu{display:block}.business-hero{height:380px;padding:74px 24px 0}.business-tabs{top:74px;height:62px}.business-tabs a{min-width:50%;padding:20px}.products{padding:85px 24px}.category-tabs button{font-size:14px}.car-stage{min-height:540px}.car-title{top:28px;left:25px}.car-title b{font-size:29px}.hotspot-powertrain{left:24%;top:52%}.product-grid{grid-template-columns:repeat(2,1fr)}.product-intro{align-items:flex-start;gap:30px}.product-intro p{text-align:left}.product-card figure{height:230px}footer{grid-template-columns:1fr;gap:25px}footer span{text-align:left}}@media(max-width:560px){.business-brand img{width:200px}.section-heading h2,.partners h2{font-size:38px}.category-tabs{grid-template-columns:1fr}.category-tabs button{border-right:0;border-bottom:1px solid var(--line)}.car-stage{min-height:410px}.car-stage>img{top:17%;height:60%}.car-title span{display:none}.hotspot{width:27px;height:27px;border-width:3px}.hotspot-powertrain{left:23%;top:49%}.hotspot-chassis{left:68%;top:60%}.hotspot-sensor{left:54%;top:41%}.stage-guide{left:20px;right:20px;bottom:18px;font-size:11px}.product-intro{display:block;margin-top:55px}.product-intro p{margin-top:18px}.product-grid{grid-template-columns:1fr}.product-card figure{height:260px}}

.powertrain-tabs{max-width:1320px;margin:18px auto 0;display:flex;justify-content:flex-start;gap:8px;transition:.25s}.powertrain-tabs.hidden{display:none}.powertrain-tabs button{padding:12px 22px;border:1px solid #cbd8e5;border-radius:30px;color:#5e6b78;background:#fff;font:600 13px inherit;cursor:pointer;transition:.25s}.powertrain-tabs button span{margin-right:9px;color:#9ba7b2;font-size:9px}.powertrain-tabs button:hover,.powertrain-tabs button.active{color:#fff;border-color:var(--navy);background:var(--navy)}.powertrain-tabs button.active span{color:#8bc3ff}.hotspot-engine{left:28%;top:54%}.hotspot-electronics{left:45%;top:55%}.hotspot-chassis{left:70%;top:34%}
@media(max-width:960px){.hotspot-engine{left:28%;top:53%}.hotspot-electronics{left:45%;top:54%}.hotspot-chassis{left:70%;top:34%}}
@media(max-width:560px){.powertrain-tabs{display:grid;grid-template-columns:1fr 1fr}.powertrain-tabs.hidden{display:none}.powertrain-tabs button{padding:11px 8px;font-size:11px}.hotspot-engine{left:28%;top:48%}.hotspot-electronics{left:45%;top:49%}.hotspot-chassis{left:70%;top:34%}}

/* In-car product viewer */
.hotspot i{animation:pulse 1.35s ease-in-out infinite}.hotspot.active i{animation:none;opacity:0}.product-window{position:absolute;z-index:12;inset:94px 26px 28px 46%;padding:22px;background:rgba(255,255,255,.97);border:1px solid rgba(177,195,211,.9);box-shadow:0 24px 60px rgba(5,28,52,.2);backdrop-filter:blur(14px);opacity:0;visibility:hidden;transform:translateX(24px);transition:opacity .28s,transform .28s,visibility .28s;overflow:auto}.product-window.open{opacity:1;visibility:visible;transform:none}.product-window-head{display:flex;align-items:flex-start;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid var(--line)}.product-window-head small{color:var(--blue);font-size:9px;font-weight:700;letter-spacing:.2em}.product-window-head h3{margin:5px 0 0;font-size:25px;letter-spacing:-.04em}.product-window-close{border:0;background:transparent;color:#667482;font:600 11px inherit;cursor:pointer}.product-window-close span{display:inline-grid;place-items:center;width:28px;height:28px;margin-left:6px;border-radius:50%;color:#fff;background:var(--navy);font-size:19px}.product-window-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding-top:16px}.window-product-card{min-width:0;border:1px solid #e0e7ed;background:#fff;animation:cardIn .35s both;animation-delay:calc(var(--card-index) * 35ms)}.window-product-card figure{height:112px;margin:0;padding:8px;background:#f7f9fb}.window-product-card img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}.window-product-card div{display:flex;align-items:center;gap:7px;padding:9px 10px}.window-product-card small{color:var(--blue);font-size:8px;font-weight:800}.window-product-card strong{overflow:hidden;font-size:10px;white-space:nowrap;text-overflow:ellipsis}
@media(max-width:960px){.product-window{inset:78px 18px 20px 40%;padding:16px}.product-window-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.window-product-card figure{height:95px}}
@media(max-width:560px){.product-window{inset:62px 10px 12px;padding:14px}.product-window-head h3{font-size:20px}.product-window-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.window-product-card figure{height:88px}.window-product-card div{padding:7px}.window-product-card strong{font-size:9px}}
.product-window{z-index:4}

/* Keep the complete vehicle visible beside the product window */
.car-visual{position:absolute;z-index:2;inset:0;overflow:hidden;transition:left .38s ease}.car-visual>img{position:absolute;left:3%;right:3%;top:8%;width:94%;height:76%;object-fit:contain;transition:transform .38s ease}.car-stage.viewer-open .car-visual{left:43%;border-left:1px solid var(--line)}.car-stage.viewer-open .car-visual>img{transform:scale(.96)}.car-stage.viewer-open .car-title{left:24px}.car-stage.viewer-open .car-title b{font-size:27px}.car-stage.viewer-open .car-title span{display:none}.car-stage.viewer-open .stage-guide{display:none}.car-stage.viewer-open .hotspot span{top:40px;font-size:8px}.car-stage.viewer-open .product-window{inset:22px auto 22px 22px;width:calc(43% - 44px);transform:translateX(-24px)}.car-stage.viewer-open .product-window.open{transform:none}.car-stage.viewer-open .product-window-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.car-stage.viewer-open .window-product-card figure{height:128px}.car-stage.viewer-open .window-product-card strong{font-size:11px}
@media(max-width:960px){.car-stage.viewer-open .car-visual{left:48%}.car-stage.viewer-open .product-window{width:calc(48% - 28px);inset:14px auto 14px 14px}.car-stage.viewer-open .window-product-card figure{height:92px}}
@media(max-width:560px){.car-stage.viewer-open .car-visual{left:0;top:48%;border-left:0;border-top:1px solid var(--line)}.car-stage.viewer-open .product-window{inset:8px 8px auto;width:auto;height:48%}.car-stage.viewer-open .product-window-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.car-stage.viewer-open .window-product-card figure{height:52px}.car-stage.viewer-open .window-product-card div{padding:5px}.car-stage.viewer-open .window-product-card strong{font-size:8px}.car-stage.viewer-open .product-window-head{padding-bottom:7px}.car-stage.viewer-open .product-window-head h3{font-size:16px}}
.car-stage.viewer-open .product-window-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.car-stage.viewer-open .window-product-card figure{height:110px}
@media(max-width:960px){.car-stage.viewer-open .product-window-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.car-stage.viewer-open .window-product-card figure{height:92px}}
@media(max-width:560px){.car-stage.viewer-open .product-window-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.car-stage.viewer-open .window-product-card figure{height:52px}}

/* Desktop viewer order: complete vehicle left, selected parts right */
.car-stage.viewer-open .car-visual{left:0;right:43%;border-left:0;border-right:1px solid var(--line)}.car-stage.viewer-open .product-window{inset:22px 22px 22px auto;width:calc(43% - 44px);transform:translateX(24px)}.car-stage.viewer-open .product-window.open{transform:none}
@media(max-width:960px){.car-stage.viewer-open .car-visual{left:0;right:48%}.car-stage.viewer-open .product-window{inset:14px 14px 14px auto;width:calc(48% - 28px)}}
@media(max-width:560px){.car-stage.viewer-open .car-visual{left:0;right:0;top:48%;border-right:0;border-top:1px solid var(--line)}.car-stage.viewer-open .product-window{inset:8px 8px auto;width:auto;height:48%}}

/* Balance the smaller first engine shaft photograph with the other products */
.engine-shaft-primary img{transform:scale(1.38)}.product-card.engine-shaft-primary:hover img{transform:scale(1.45)}
.eop-shaft-balanced img{transform:scale(1.4)}.product-card.eop-shaft-balanced:hover img{transform:scale(1.47)}.magnet-yoke-balanced img{transform:scale(.84)}.product-card.magnet-yoke-balanced:hover img{transform:scale(.9)}
.electronics-bush-balanced img{transform:scale(1.35)}.product-card.electronics-bush-balanced:hover img{transform:scale(1.42)}
.sensor-header-balanced img{transform:scale(1.5)}.product-card.sensor-header-balanced:hover img{transform:scale(1.58)}

/* Partners */
.partners{padding:120px 7vw;background:linear-gradient(135deg,#f3f6f9 0%,#fff 68%);display:grid;grid-template-columns:minmax(300px,.8fr) minmax(560px,1.2fr);gap:7vw;align-items:center;text-align:left}.partners-copy>small{font-size:10px;letter-spacing:.25em;color:var(--blue);font-weight:800}.partners-copy h2{margin:16px 0 25px;font-size:clamp(38px,4vw,60px);line-height:1.18}.partners-copy h2 em{color:var(--blue);font-style:normal}.partners-copy p{max-width:600px;color:#64717d;font-size:15px;line-height:1.95;word-break:keep-all}.partner-capabilities{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}.partner-capabilities span{padding:9px 14px;border:1px solid #ccdae7;border-radius:30px;color:#52616f;background:#fff;font-size:9px;font-weight:800;letter-spacing:.13em}.partner-logos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid #dce3ea;border-left:1px solid #dce3ea;background:#fff;box-shadow:0 24px 60px rgba(8,35,61,.08)}.partner-logo{min-height:112px;padding:20px;display:flex;align-items:center;justify-content:center;gap:7px;border-right:1px solid #dce3ea;border-bottom:1px solid #dce3ea;background:#fff;transition:.28s}.partner-logo:hover{z-index:1;transform:translateY(-4px);box-shadow:0 13px 30px rgba(6,43,78,.12)}.partner-logo b{font-size:24px;letter-spacing:-.04em}.partner-logo small{font-size:8px}.myunghwa b{color:#0870b9}.te{color:#fff;background:#ee7900}.te b{font-size:35px;font-style:italic}.hanchang{color:#fff;background:#08111e}.probiz b{color:#173a75}.psi b{color:#3197a8}.psi span{color:#16869a;font-weight:700}.during{color:#fff;background:#e60020}.during b{letter-spacing:.08em}.polytech b{color:#1265a6}.polytech span{font-weight:800}.systro b{color:#0d5ca7;font-size:30px;letter-spacing:.04em}.hanshin b{color:#e32127}.hanshin b span{color:#888}.gmb{flex-direction:column;color:#c81827}.gmb b{font-size:32px}.gmb small{color:#c81827}
@media(max-width:960px){.partners{grid-template-columns:1fr;gap:55px}.partner-logos{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.partners{padding:85px 22px}.partners-copy h2{font-size:36px}.partner-logos{grid-template-columns:1fr 1fr}.partner-logo{min-height:88px;padding:12px}.partner-logo b{font-size:18px}.systro b,.gmb b{font-size:23px}}
.partner-logo img{width:auto;max-width:88%;height:auto;max-height:62px;object-fit:contain;filter:none;transition:transform .28s}.partner-logo:hover img{transform:scale(1.06)}
/* Clear CI cards on a light background. */
.partners{display:block;background:#fff}
.partners-copy{max-width:1320px;margin:0 auto 48px}
.partners-copy p{max-width:850px}
.partner-logos{max-width:1320px;margin:auto;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;border:0;background:transparent;box-shadow:none}
.partner-logo{min-width:0;min-height:132px;padding:22px 18px;border:0;background:#f5f5f5}
.partner-logo img{width:100%;max-width:100%;height:82px;max-height:82px;object-fit:contain;mix-blend-mode:multiply;filter:contrast(1.15) brightness(1.1)}
.partner-logo:hover{background:#ededed;box-shadow:0 8px 22px rgba(6,43,78,.08);transform:translateY(-3px)}
.partner-logo--during img{transform:scale(1.4)}
.partner-logo--during:hover img{transform:scale(1.46)}
.partner-logo--anp img{width:140px;max-width:100%;height:auto;max-height:90px;filter:contrast(1.2) brightness(1.15)}
.partner-logo--hanchang img,.partner-logo--te img{filter:none}
.partner-logo--myunghwa img{transform:scale(1.1)}
.partner-logo--myunghwa:hover img{transform:scale(1.16)}
.partner-logo--hanchang img{width:86%;height:68px;max-height:68px}
.partner-logo--te img{transform:scale(1.25)}
.partner-logo--te:hover img{transform:scale(1.31)}
.partner-logo--hanshin img{width:92%}
.partner-logo--gmb img{transform:scale(1.08)}
.partner-logo--gmb:hover img{transform:scale(1.14)}
@media(max-width:1100px){.partner-logos{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}}
@media(max-width:600px){.partners-copy{margin-bottom:30px}.partner-logos{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.partner-logo{min-height:110px;padding:16px 12px}.partner-logo img{height:70px;max-height:70px}}

/* PC navigation labels: increase by 2px without changing mobile. */
@media (min-width: 961px) {
  .business-header nav { font-size: 17px; }
  .business-tabs a { font-size: 16px; }
}