:root{--brand: #2a52ff;--brand-ink: #1c3bc4;--brand-soft: #eef1ff;--bg: #ffffff;--surface: #f7f8fb;--surface-2: #f0f2f7;--text: #14161c;--muted: #5b606e;--faint: #8a8f9c;--border: #e4e7ef;--border-strong: #d2d6e2;--radius: 12px;--radius-sm: 8px;--maxw: 1040px;--prose: 740px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}@media(prefers-color-scheme:dark){:root{--brand: #6f88ff;--brand-ink: #aab9ff;--brand-soft: #1a1f3a;--bg: #0e1016;--surface: #161922;--surface-2: #1c202b;--text: #eef0f6;--muted: #a3a9b8;--faint: #767c8c;--border: #262b38;--border-strong: 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a.hide-sm{display:none}.layers,.grid-3,.footer-inner{grid-template-columns:1fr}.hero{padding-top:56px}}