:root{color-scheme:light dark;--bg:#f7f9fc;--card:#fff;--ink:#13213a;--muted:#53627a;--line:#dce3ef;--blue:#165dc5}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,'Hiragino Sans','Yu Gothic',sans-serif}header,footer,main{width:min(760px,calc(100% - 32px));margin:auto}header{padding:24px 0 12px}.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-size:20px;font-weight:750;text-decoration:none}.brand img{border-radius:12px}main{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,5vw,48px);box-shadow:0 12px 36px #20304a14}h1{font-size:clamp(30px,6vw,46px);line-height:1.2;margin:0 0 12px}h2{font-size:22px;margin:36px 0 8px}p{margin:8px 0;color:var(--muted)}a{color:var(--blue)}.lead{font-size:18px}.contact{display:inline-flex;margin-top:12px;padding:12px 18px;border-radius:12px;background:var(--blue);color:white;font-weight:700;text-decoration:none}footer{display:flex;flex-wrap:wrap;gap:18px;padding:24px 0 48px;color:var(--muted);font-size:14px}@media(prefers-color-scheme:dark){:root{--bg:#07111f;--card:#101c2e;--ink:#f4f7ff;--muted:#bac6d9;--line:#2c3d57;--blue:#78aafc}}