:root{--color-ink:26 54 93;--color-ink-light:44 82 130;--color-paper:254 253 251;--color-paper-cream:250 247 242;--color-amber:180 83 9;--color-amber-muted:255 245 230;--color-red:185 28 28;--color-green:21 128 61;--color-blue:29 78 137;--shadow-color:26 54 93;--color-canvas:254 253 251;--color-canvas-subtle:250 247 242;--color-surface:255 255 255;--color-surface-muted:246 247 248;--color-surface-raised:255 255 255;--color-text-primary:37 52 73;--color-text-secondary:71 85 105;--color-text-muted:90 101 116;--color-text-inverse:254 253 251;--color-border-subtle:237 240 244;--color-border-default:227 232 238;--color-border-strong:148 163 184;--color-link:26 54 93;--color-link-hover:44 82 130;--color-link-subtle:71 85 105;--color-success:21 128 61;--color-warning:133 77 14;--color-danger:185 28 28;--color-info:29 78 137;--font-size-display:clamp(2.1rem, 5vw, 3.25rem);--font-size-title:clamp(1.6rem, 3vw, 2.25rem);--font-size-heading:1.35rem;--font-size-body:1rem;--font-size-caption:.9rem;--font-size-label:.8125rem;--font-size-mono:.88rem;--line-height-display:1.18;--line-height-title:1.25;--line-height-heading:1.35;--line-height-body:1.7;--line-height-reading:1.85;--layout-content:72.5rem;--layout-reading:45rem;--layout-rail:18.5rem;--layout-gutter:2.5rem;--space-page:clamp(2.5rem, 5vw, 4.25rem);--space-section:clamp(2.25rem, 5vw, 3.75rem);--space-group:1.5rem;--space-control:.75rem;--radius-control:.55rem;--radius-surface:.95rem;--radius-dialog:1rem;--shadow-raised:0 10px 30px rgb(var(--shadow-color) / .08);--z-base:1;--z-sticky:20;--z-navigation:50;--z-popover:60;--z-dialog:80;--z-toast:90;--motion-fast:.1s;--motion-normal:.15s;--motion-slow:.3s;--touch-min:44px;--field-focus-ring:40 120 189;--navigation-active-indicator:26 54 93;--color-reason:180 83 9;--color-reason-muted:255 245 230;--color-action-primary:26 54 93;--color-action-primary-hover:44 82 130;--color-selection:26 54 93;--color-focus:40 120 189;--color-meta:71 85 105;--semantic-warning-fg:133 77 14;--semantic-warning-bg:254 249 195;--color-brand-mark-accent:180 83 9;--font-sans:var(--font-geist), "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-serif:"Songti SC", "STSong", Georgia, serif;--font-mono:var(--font-geist-mono), "SFMono-Regular", Consolas, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}:root.light{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root.dark{--color-ink:217 232 247;--color-ink-light:241 247 252;--color-paper:17 24 32;--color-paper-cream:20 29 39;--color-amber:241 161 59;--color-amber-muted:53 38 22;--color-red:252 165 165;--color-green:134 239 172;--color-blue:147 197 253;--shadow-color:0 0 0;--color-canvas:17 24 32;--color-canvas-subtle:20 29 39;--color-surface:23 33 43;--color-surface-muted:28 39 50;--color-surface-raised:30 41 59;--color-text-primary:241 247 252;--color-text-secondary:209 218 227;--color-text-muted:168 182 196;--color-text-inverse:17 24 32;--color-border-subtle:36 48 61;--color-border-default:44 59 73;--color-border-strong:100 116 139;--color-link:125 211 252;--color-link-hover:186 230 253;--color-link-subtle:168 182 196;--color-success:134 239 172;--color-warning:250 204 21;--color-danger:252 165 165;--color-info:147 197 253;--field-focus-ring:96 165 250;--navigation-active-indicator:147 197 253;--color-reason:241 161 59;--color-reason-muted:53 38 22;--color-action-primary:59 130 246;--color-action-primary-hover:96 165 250;--color-selection:147 197 253;--color-focus:96 165 250;--semantic-warning-fg:250 204 21;--semantic-warning-bg:41 37 20;--color-brand-mark-accent:241 161 59;--color-meta:168 182 196;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not(.light){--color-ink:217 232 247;--color-ink-light:241 247 252;--color-paper:17 24 32;--color-paper-cream:20 29 39;--color-amber:241 161 59;--color-amber-muted:53 38 22;--color-red:252 165 165;--color-green:134 239 172;--color-blue:147 197 253;--shadow-color:0 0 0;--field-focus-ring:96 165 250;--color-canvas:17 24 32;--color-canvas-subtle:20 29 39;--color-surface:23 33 43;--color-surface-muted:28 39 50;--color-surface-raised:30 41 59;--color-text-primary:241 247 252;--color-text-secondary:209 218 227;--color-text-muted:168 182 196;--color-text-inverse:17 24 32;--color-border-subtle:36 48 61;--color-border-default:44 59 73;--color-border-strong:100 116 139;--color-link:125 211 252;--color-link-hover:186 230 253;--color-link-subtle:168 182 196;--color-success:134 239 172;--color-warning:250 204 21;--color-danger:252 165 165;--color-info:147 197 253;--color-reason:241 161 59;--color-reason-muted:53 38 22;--color-action-primary:59 130 246;--color-action-primary-hover:96 165 250;--color-selection:147 197 253;--color-focus:96 165 250;--semantic-warning-fg:250 204 21;--semantic-warning-bg:41 37 20;--color-meta:168 182 196;--color-brand-mark-accent:241 161 59;--navigation-active-indicator:147 197 253}}@media (max-width:767px){:root{--layout-gutter:1.25rem}}@media (prefers-reduced-motion:reduce){:root{--motion-fast:0s;--motion-normal:0s;--motion-slow:0s}}
*{box-sizing:border-box}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}html,body{max-width:100%;overflow-x:clip}body{background-color:rgb(var(--color-canvas));color:rgb(var(--color-text-primary));font-family:var(--font-sans);font-size:var(--font-size-body);line-height:var(--line-height-body);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility}h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;line-height:var(--line-height-title)}a{color:inherit;text-decoration:none}:focus-visible{outline:3px solid rgb(var(--field-focus-ring));outline-offset:3px;border-radius:var(--radius-control)}::selection{background:rgb(var(--color-selection) / .18);color:rgb(var(--color-text-primary))}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root.dark ::selection{background:rgb(var(--color-selection) / .32)}@media (prefers-color-scheme:dark){:root:not(.light) ::-moz-selection{background:rgb(var(--color-selection) / .32)}:root:not(.light) ::selection{background:rgb(var(--color-selection) / .32)}}