:root{--ink:#17211b;--muted:#6d756e;--paper:#f6f1e7;--card:#fffdf8;--green:#1f5a3b;--green2:#dce9d8;--orange:#df7043;--line:#dcd8cc;--red:#a33a32;--yellow:#e8c965;--shadow:0 18px 50px rgba(35,45,38,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"DM Sans","Noto Sans SC",sans-serif}.topbar{height:78px;display:flex;align-items:center;padding:0 clamp(18px,4vw,64px);border-bottom:1px solid rgba(23,33,27,.12);position:sticky;top:0;background:rgba(246,241,231,.92);backdrop-filter:blur(14px);z-index:20}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-size:11px;line-height:1.05;letter-spacing:.08em;text-transform:uppercase}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--green);color:white;font-family:Georgia,serif;font-size:22px}.brand b{font-size:13px}.topbar nav{display:flex;margin:auto;gap:6px}.topbar nav 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