:root{--hal-font-sans: "Inter", system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--hal-font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;--hal-font-serif: "Instrument Serif", Georgia, serif;--hal-r-xs: 4px;--hal-r-sm: 6px;--hal-r-md: 8px;--hal-r-lg: 12px;--hal-r-xl: 16px;--hal-r-full: 999px;--hal-space-1: 4px;--hal-space-2: 8px;--hal-space-3: 12px;--hal-space-4: 16px;--hal-space-5: 20px;--hal-space-6: 24px;--hal-space-8: 32px;--hal-space-12: 48px;--hal-sidebar-width: 224px;--hal-header-height: 56px;--hal-content-padding-x: 32px;--hal-content-padding-y: 24px;--hal-duration-fast: .15s;--hal-duration-normal: .2s;--hal-ease-out: cubic-bezier(.16, 1, .3, 1);--hal-z-sticky: 100;--hal-z-beam: 600;--hal-brand: #ff8a3d;--hal-brand-hover: #f2761f;--hal-brand-soft: color-mix(in oklch, #ff8a3d, white 90%);--hal-brand-ink: color-mix(in oklch, #ff8a3d, black 60%);--hal-ink: #1c1917;--hal-ink-2: #44403c;--hal-ink-3: #78716c;--hal-ink-4: #a8a29e;--hal-paper: #ffffff;--hal-canvas: #fafaf9;--hal-line: #f0ede9;--hal-line-strong: #e7e5e4;--hal-ok: #16a34a;--hal-warn: #d97706;--hal-danger: #dc2626;--hal-shadow-hover: 0 8px 24px rgba(28, 25, 23, .06);--hal-shadow-modal: 0 1px 3px rgba(28, 25, 23, .04), 0 12px 32px rgba(28, 25, 23, .08);--hal-shadow-brand: 0 4px 16px color-mix(in oklch, #ff8a3d, transparent 78%);--hal-shadow-brand-hover: 0 6px 22px color-mix(in oklch, #ff8a3d, transparent 66%)}*{box-sizing:border-box}html,body{margin:0;padding:0}html{font-family:var(--hal-font-sans);font-size:110%}body{background:var(--hal-canvas);color:var(--hal-ink);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}.hal-mono,.hal-num{font-family:var(--hal-font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.3px}.hal-eyebrow{font-family:var(--hal-font-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--hal-ink-3);font-weight:500}.hal-hero{font-family:var(--hal-font-serif);font-style:italic;letter-spacing:-.02em}@keyframes hal-pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.85}}@keyframes hal-ping{0%{transform:scale(1);opacity:.9}to{transform:scale(2.4);opacity:0}}@keyframes hal-breath{0%,to{opacity:.35;transform:scale(1)}50%{opacity:.7;transform:scale(1.04)}}@keyframes hal-fade-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes hal-dot-bounce{0%,80%,to{transform:translateY(0);opacity:.4}40%{transform:translateY(-4px);opacity:1}}.hal-card{background:var(--hal-paper);border:1px solid var(--hal-line-strong);border-radius:var(--hal-r-xl);padding:var(--hal-space-5);transition:transform var(--hal-duration-normal) var(--hal-ease-out),box-shadow var(--hal-duration-normal) var(--hal-ease-out)}.hal-card-hoverable:hover{transform:translateY(-1px);box-shadow:var(--hal-shadow-hover)}.hal-section-title{position:relative;padding-left:12px;font-weight:600;color:var(--hal-ink)}.hal-section-title:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:14px;background:var(--hal-brand);border-radius:2px}.hal-corner-dots{background-image:radial-gradient(circle,var(--hal-line-strong) 1px,transparent 1px);background-size:24px 24px}