:root{--ink:#111827;--muted:#667085;--line:#dedbd3;--paper:#f5f3ed;--accent:#17458f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif}.site-header{height:86px;padding:0 clamp(24px,5vw,76px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.xrm-mark img{display:block;width:92px;height:auto}.header-link,.manage-link{color:var(--ink);text-decoration:none;font-size:13px}.hero{min-height:calc(100vh - 86px);display:flex;flex-direction:column;justify-content:space-between;padding:clamp(74px,10vh,124px) clamp(24px,8vw,124px) 46px}.hero-inner{max-width:1120px}.kicker,.section-title p,.contact-row p{margin:0 0 24px;color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.18em}.hero h1{max-width:1100px;margin:0;font-size:clamp(44px,6.2vw,92px);font-weight:500;letter-spacing:-.055em;line-height:.98;text-wrap:balance}.summary{max-width:700px;margin:34px 0;color:var(--muted);font-size:clamp(17px,1.5vw,21px);line-height:1.58}.primary-button{display:inline-flex;align-items:center;gap:40px;padding:15px 20px;border:1px solid var(--ink);color:var(--ink);text-decoration:none;font-size:14px}.primary-button:hover{background:var(--ink);color:#fff}.identity{display:flex;gap:24px;align-items:baseline;padding-top:54px;font-size:13px}.identity span{color:var(--muted)}.videos-section{padding:110px clamp(24px,8vw,124px);background:#fff}.section-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:54px}.section-title p{margin:0}.section-title h2{margin:0;font-size:clamp(34px,4vw,56px);font-weight:500;letter-spacing:-.04em}.video-list{display:grid;gap:92px}.video-shell{background:#0b0c0f;display:flex;justify-content:center;align-items:center;min-height:280px;overflow:hidden}.video-shell video{display:block;width:100%;max-height:78vh;object-fit:contain}.video-copy{display:grid;grid-template-columns:70px 1fr;gap:18px;padding-top:22px;border-top:1px solid var(--line);margin-top:18px}.video-copy>span{font-size:12px;color:var(--accent);font-weight:700}.video-copy h3{margin:0 0 9px;font-size:clamp(21px,2vw,29px);font-weight:500;letter-spacing:-.025em}.video-copy p{max-width:780px;margin:0;color:var(--muted);font-size:15px;line-height:1.65}footer{padding:72px clamp(24px,8vw,124px) 48px}.logo-row{display:flex;align-items:center;gap:clamp(28px,5vw,74px);padding-bottom:50px}.postech-logo{width:min(250px,32vw);height:auto}.mpk-logo{width:160px;height:auto}.footer-xrm{width:126px;height:auto}.contact-row{padding-top:34px;border-top:1px solid var(--line);display:flex;justify-content:space-between}.contact-row p{margin-bottom:8px}.contact-row a{font-size:14px;color:var(--ink);text-decoration:none}@media(max-width:720px){.site-header{height:70px}.xrm-mark img{width:76px}.hero{min-height:calc(100vh - 70px);padding-top:64px}.hero h1{font-size:clamp(38px,12vw,58px)}.identity{flex-direction:column;gap:8px}.videos-section{padding-top:80px}.section-title{align-items:start}.video-list{gap:68px}.video-copy{grid-template-columns:48px 1fr}.logo-row{display:grid;grid-template-columns:1fr 1fr;gap:32px}.postech-logo{width:200px;max-width:100%;grid-column:1/-1}.footer-xrm{width:105px}}