:root{color-scheme:dark;--bg:#09070f;--card:#15111e;--ink:#fff8ea;--muted:#aaa0b9;--yellow:#ffe55e;--pink:#ff5db1;--line:#30283d}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 12% 8%,#3d173d 0,transparent 26rem),var(--bg);color:var(--ink);font:15px/1.7 Inter,system-ui,sans-serif}a{color:var(--yellow)}header,main,footer{width:min(820px,calc(100% - 32px));margin:auto}header{display:flex;align-items:center;justify-content:space-between;padding:28px 0;border-bottom:1px solid var(--line)}header a{text-decoration:none}.brand{font-weight:900;font-size:19px}.back{color:var(--muted);font-size:13px}main{padding:70px 0}h1{font-size:clamp(44px,8vw,76px);line-height:.95;letter-spacing:-.055em;margin:15px 0 20px}.eyebrow{color:var(--pink);font:11px DM Mono,monospace;letter-spacing:.14em}.effective{color:var(--muted);margin-bottom:48px}section{background:rgba(21,17,30,.88);border:1px solid var(--line);border-radius:20px;padding:24px;margin:14px 0}h2{font-size:22px;margin:0 0 10px}p,li{color:#d5cedd}li+li{margin-top:8px}footer{border-top:1px solid var(--line);padding:26px 0 44px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap;font-size:12px}@media(max-width:520px){main{padding-top:46px}section{padding:19px}header{align-items:flex-start;gap:18px}}