:root { --ch-ink:#102630; --ch-muted:#536970; --ch-green:#0b846f; --ch-dark:#071923; --ch-soft:#f1f7f5; --ch-line:#d6e4e0; }
* { box-sizing:border-box; }
body { margin:0; color:var(--ch-ink); background:#fff; font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
a { color:inherit; }
.ch-shell { width:min(1120px,calc(100% - 40px)); margin:0 auto; }
.ch-hero { padding:clamp(5rem,10vw,8rem) 0 clamp(3.5rem,7vw,5.5rem); color:#effaf7; background:radial-gradient(circle at 85% 10%,rgba(25,189,149,.23),transparent 32%),linear-gradient(135deg,#071923,#0b2b34); }
.ch-breadcrumbs { display:flex; flex-wrap:wrap; gap:.55rem; margin-bottom:1.6rem; color:#b9d6cf; font-size:.9rem; }
.ch-kicker { display:block; margin-bottom:.7rem; color:#77e9c7; font-size:.78rem; font-weight:850; letter-spacing:.12em; text-transform:uppercase; }
.ch-hero h1 { max-width:850px; margin:0 0 1rem; font-size:clamp(2.5rem,7vw,5rem); line-height:.98; letter-spacing:-.04em; }
.ch-lead { max-width:780px; color:#d0e5e0; font-size:clamp(1.05rem,2vw,1.25rem); line-height:1.7; }
.ch-section { padding:clamp(3.5rem,7vw,6rem) 0; background:var(--ch-soft); }
.ch-heading { max-width:780px; margin-bottom:2rem; }
.ch-heading h2 { margin:0 0 .8rem; font-size:clamp(2rem,4vw,3.1rem); line-height:1.08; }
.ch-heading p,.ch-card p { color:var(--ch-muted); line-height:1.7; }
.ch-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:1rem; }
.ch-card { display:flex; flex-direction:column; padding:1.35rem; border:1px solid var(--ch-line); border-radius:16px; background:#fff; text-decoration:none; box-shadow:0 10px 30px rgba(7,25,35,.05); }
.ch-card:hover { border-color:#7cbcae; transform:translateY(-2px); }
.ch-card span { color:var(--ch-green); font-size:.76rem; font-weight:850; letter-spacing:.07em; text-transform:uppercase; }
.ch-card h3 { margin:.55rem 0 .35rem; }
.ch-card strong { margin-top:auto; padding-top:.8rem; color:#086d5c; }
.ch-guidance { padding:3rem 0; background:#fff; }
.ch-guidance-grid { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.ch-panel { padding:1.3rem; border:1px solid var(--ch-line); border-radius:16px; }
.ch-panel h2 { margin-top:0; }
.ch-panel p { color:var(--ch-muted); line-height:1.7; }
.ch-panel a { color:#086d5c; font-weight:800; }
.ch-footer { padding:2rem 0; color:#c6dad5; background:#041219; }
.ch-footer-inner { display:flex; flex-wrap:wrap; justify-content:space-between; gap:1rem; }
.ch-footer a { color:#77e9c7; }
@media(max-width:800px){.ch-grid,.ch-guidance-grid{grid-template-columns:1fr}.ch-shell{width:min(100% - 28px,1120px)}}