:root{
  --bg:#ffffff;
  --ink:#0b0b0c;
  --ink-2:#1a1a1c;
  --muted:#5a5a60;
  --line:#e7e7ea;
  --soft:#f4f4f3;
  --accent: oklch(0.58 0.07 240);
  --accent-ink: oklch(0.32 0.06 240);
  --accent-soft: oklch(0.96 0.02 240);
  --serif:"Bricolage Grotesque","Geist","Helvetica Neue",Helvetica,Arial,sans-serif;
  --sans:"Geist","Helvetica Neue",Helvetica,Arial,sans-serif;
  --r-lg:22px;
  --r-md:14px;
  --maxw:1280px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{font-size:17px;line-height:1.6;font-weight:400}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--ink);color:var(--bg)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ============ NAV ============ */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:14px 28px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{height:52px;width:auto}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text .b1{font-family:var(--serif);font-size:22px;font-weight:500}
.brand-text .b2{font-family:var(--sans);font-size:12.5px;color:var(--muted);margin-top:3px}
.nav-back{margin-left:auto;font-family:var(--sans);font-size:14.5px;color:var(--ink);display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;border:1px solid var(--line);transition:background .2s,border-color .2s}
.nav-back:hover{background:var(--soft);border-color:var(--ink)}
.nav-back svg{width:14px;height:14px;stroke:currentColor;stroke-width:1.8;fill:none}

/* ============ HEADER ============ */
.imp-head{padding:80px 0 56px;border-bottom:1px solid var(--line)}
.imp-head-inner{max-width:760px;margin:0 auto}
.imp-head .eyebrow{font-family:var(--serif);font-size:16px;font-weight:500;color:var(--ink)}
.imp-head h1{font-family:var(--serif);font-size:clamp(56px,8.5vw,120px);line-height:.95;letter-spacing:-.035em;font-weight:500;margin:14px 0 0}
.imp-head .meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:14.5px}

/* ============ BODY ============ */
.imp-body{padding:72px 0 96px}
@media (max-width:780px){.imp-body{padding:48px 0 72px}}
.imp-content{max-width:760px;margin:0 auto}
.imp-section{padding-bottom:42px;border-bottom:1px solid var(--line);margin-bottom:42px;scroll-margin-top:96px}
.imp-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.imp-section .num{font-family:var(--sans);font-size:13px;color:var(--muted);font-weight:500;margin-bottom:10px}
.imp-section h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,38px);line-height:1.05;letter-spacing:-.025em;font-weight:500;margin:0 0 22px}
.imp-section p{font-size:16px;line-height:1.7;color:var(--ink-2);margin:0 0 14px}
.imp-section p:last-child{margin-bottom:0}
.imp-section a.link{color:var(--ink);border-bottom:1px solid var(--ink);transition:color .2s, border-color .2s}
.imp-section a.link:hover{color:var(--accent-ink);border-color:var(--accent-ink)}
.imp-data{display:grid;grid-template-columns:160px 1fr;gap:10px 28px;font-size:16px;line-height:1.6;color:var(--ink-2);margin:0 0 14px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.imp-data dt{color:var(--muted);font-size:14.5px;padding-top:1px}
.imp-data dd{margin:0;color:var(--ink-2)}
@media (max-width:560px){.imp-data{grid-template-columns:1fr;gap:2px 0}.imp-data dt{margin-top:10px}.imp-data dt:first-child{margin-top:0}}

/* ============ FOOTER ============ */
footer{background:#0a0a0c;color:#dcdce0;padding:80px 0 30px;margin-top:0;border-radius:48px 48px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
@media (max-width:880px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}.foot-brand{grid-column:1/-1}}
.foot-brand img{height:120px;width:auto;display:block;margin-left:-12px}
.foot-brand p{margin-top:18px;color:#9a9aa0;font-size:14px;max-width:34ch;line-height:1.6}
.foot-col h5{font-family:var(--serif);font-size:15px;color:#fff;font-weight:500;margin:8px 0 16px}
.foot-col a, .foot-col p{display:block;color:#dcdce0;font-size:14.5px;margin:0 0 8px;padding:0}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:24px;flex-wrap:wrap;color:#7e7e85;font-size:12.5px;font-family:var(--sans)}
.foot-bottom a:hover{color:#fff}

@media (max-width:780px){
  .container{padding:0 20px}
  .nav-inner{padding:10px 20px}
  .brand-mark{height:44px}
  .brand-text .b2{display:none}
  .brand-text .b1{font-size:19px}
  .imp-head{padding:56px 0 36px}
  .imp-head h1{font-size:clamp(44px,11vw,68px)}
  footer{padding:54px 0 24px}
  .foot-brand img{height:90px;margin-left:-8px}
}