:root{--bg: #ffffff;--bg-elev: #ffffff;--bg-soft: #f4f3f0;--text: #1f1e1c;--text-muted: #5e5b55;--text-faint: #78756e;--border: rgba(31, 30, 28, .1);--hairline: rgba(31, 30, 28, .08);--fill-1: rgba(31, 30, 28, .05);--accent: #e07b39;--accent-soft: rgba(224, 123, 57, .13);--accent-deep: #b4561b;--ink: #1f1e1c;--ink-soft: #3d3b37;--shadow-shot: 0 30px 80px -20px rgba(31, 30, 28, .28), 0 12px 28px -12px rgba(31, 30, 28, .18);--font-serif: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;--font-ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", "Inter", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;--font-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;--content-width: 1100px}@media(prefers-color-scheme:dark){:root{--bg: #1c1c1e;--bg-elev: #232325;--bg-soft: #232325;--text: #eceae6;--text-muted: #a9a6a0;--text-faint: #8c8984;--border: rgba(255, 255, 255, .1);--hairline: rgba(255, 255, 255, .08);--fill-1: rgba(255, 255, 255, .07);--accent: #f0965a;--accent-soft: rgba(240, 150, 90, .18);--accent-deep: #f4a26b;--ink: #ffffff;--ink-soft: #d6d4cf;--shadow-shot: 0 30px 80px -20px rgba(0, 0, 0, .7), 0 12px 28px -12px rgba(0, 0, 0, .5)}}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;font-family:var(--font-ui);font-size:16px;line-height:1.6;color:var(--text);background:var(--bg)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{font-weight:600;line-height:1.1;margin:0 0 .5em;color:var(--ink);font-family:var(--font-serif);letter-spacing:-.02em}h1{font-size:clamp(2.6rem,6vw,4.8rem);font-weight:700;letter-spacing:-.03em;line-height:1.05}h2{font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:700;letter-spacing:-.025em}h3{font-size:1.3rem;font-family:var(--font-ui);letter-spacing:-.005em;font-weight:600}h4{font-size:1.05rem;font-family:var(--font-ui);letter-spacing:0}p{margin:0 0 1em}code{font-family:var(--font-mono);font-size:.9em;background:var(--bg-soft);padding:.15em .4em;border-radius:4px;color:var(--accent-deep)}.container{max-width:var(--content-width);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;transition:background .18s,color .18s,border-color .18s;text-decoration:none;letter-spacing:-.005em}a.btn--primary,.btn--primary{background:var(--ink);color:var(--bg)}a.btn--primary:hover,.btn--primary:hover{background:var(--ink-soft);color:var(--bg);text-decoration:none}a.btn--secondary,.btn--secondary{background:transparent;color:var(--text);border-color:var(--border)}a.btn--secondary:hover,.btn--secondary:hover{background:var(--bg-soft);color:var(--text);border-color:var(--ink);text-decoration:none}a.btn--accent,.btn--accent{background:var(--accent);color:#1a1a1a}a.btn--accent:hover,.btn--accent:hover{background:var(--accent-deep);color:#1a1a1a;text-decoration:none}.brand-mark{font-family:var(--font-mono);font-weight:700;letter-spacing:.01em}.brand-mark .h{color:var(--accent)}.brand-mark .md{color:var(--text)}section{padding:112px 0}@media(max-width:720px){section{padding:72px 0}}.lead{font-size:clamp(1.1rem,2.2vw,1.35rem);color:var(--text-muted);max-width:680px;line-height:1.55}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}html{scroll-behavior:auto!important}}.skip-link{position:absolute;left:-9999px;top:0;z-index:999;padding:10px 16px;background:var(--accent, #ff9f40);color:#fff;font-size:14px;font-weight:600;border-radius:0 0 6px;text-decoration:none}.skip-link:focus,.skip-link:focus-visible{left:0;outline:2px solid #fff;outline-offset:-4px}