:root{--color-bg-base:#0B0F14;--color-bg-panel:rgba(17,22,32,0.90);--color-bg-elevated:rgba(22,28,38,0.85);--color-bg-glass:rgba(26,32,48,0.72);--color-bg-overlay:rgba(6,9,15,0.70);--color-fg-primary:#E6EDF3;--color-fg-secondary:#9AA4AE;--color-fg-tertiary:#5A6470;--color-fg-muted:#3E464F;--color-fg-on-accent:#0B0F14;--color-brand-blue:#5D87EE;--color-accent-cyan:#00D1FF;--color-border:#1F2933;--bg-base:oklch(0.16 0.008 260);--bg-panel:oklch(0.19 0.009 260/0.90);--bg-elevated:oklch(0.21 0.009 260/0.85);--bg-glass:oklch(0.23 0.01 260/0.72);--bg-overlay:oklch(0.09 0.006 260/0.70);--bg-hover:oklch(0.24 0.01 260);--bg-active:oklch(0.28 0.012 260);--fg-primary:#E6EDF3;--fg-secondary:#9AA4AE;--fg-tertiary:#5A6470;--fg-muted:#3E464F;--fg-on-accent:#0B0F14;--border-subtle:rgb(255 255 255/0.06);--border-default:#1F2933;--border-strong:rgb(255 255 255/0.14);--accent:#5D87EE;--accent-hover:#7298F2;--accent-active:#4A70D8;--accent-soft:rgba(93,135,238,0.14);--accent-border:rgba(93,135,238,0.35);--accent-glow:0 0 0 1px rgba(93,135,238,0.30),0 0 16px rgba(93,135,238,0.20);--accent-cyan:#00D1FF;--accent-cyan-hover:#67E8F9;--accent-cyan-active:#0891B2;--accent-cyan-soft:rgba(0,209,255,0.12);--accent-cyan-border:rgba(0,209,255,0.34);--accent-cyan-glow:0 0 0 1px rgba(0,209,255,0.30),0 0 12px rgba(0,209,255,0.25);--product-answer-hue:250;--product-stream-hue:35;--product-draft-hue:355;--product-align-hue:295;--product-respond-hue:155;--product-ops-hue:75;--product-vision-hue:215;--product-answer:#5D87EE;--product-stream:#EE8B3A;--product-draft:#EE5D7A;--product-align:#B06AEE;--product-respond:#40C878;--product-ops:#C8A83A;--product-vision:#40B8EE;--status-green:#40C878;--status-green-soft:rgba(64,200,120,0.14);--status-amber:#C8A83A;--status-amber-soft:rgba(200,168,58,0.14);--status-red:#E05050;--status-red-soft:rgba(224,80,80,0.14);--status-violet:#B06AEE;--status-violet-soft:rgba(176,106,238,0.14);--status-pink:#EE5D7A;--status-pink-soft:rgba(238,93,122,0.14);--status-cyan:#40B8EE;--status-cyan-soft:rgba(64,184,238,0.14);--grad-brand:linear-gradient(16deg,#5D87EE 14.79%,#7A52D0 85.21%);--grad-brand-soft:linear-gradient(16deg,rgba(93,135,238,0.14),rgba(122,82,208,0.08));--grad-stream:linear-gradient(16deg,#EE8B3A 14.79%,#EE5D7A 85.21%);--grad-cool:linear-gradient(16deg,#40B8EE 14.79%,#B06AEE 85.21%);--grad-cyan:linear-gradient(135deg,#00D1FF,#67E8F9);--grad-cyan-soft:linear-gradient(135deg,rgba(0,209,255,0.14),rgba(103,232,249,0.08));--grad-page-dark:radial-gradient(ellipse 110% 58% at 50% -18%,rgba(93,135,238,0.12) 0%,transparent 62%),#0B0F14;--grad-shimmer:linear-gradient(105deg,transparent 40%,rgba(255,255,255,0.06) 50%,transparent 60%);--r-xs:4px;--r-sm:6px;--r-md:8px;--r-lg:12px;--r-xl:16px;--r-2xl:20px;--r-full:9999px;--r-btn:6px;--r-card:8px;--r-input:6px;--r-pill:9999px;--shadow-xs:0 1px 2px rgba(0,0,0,0.35);--shadow-sm:0 1px 2px rgba(0,0,0,0.40);--shadow-md:0 2px 10px rgba(0,0,0,0.25);--shadow-lg:0 8px 24px rgba(0,0,0,0.34);--shadow-xl:0 16px 40px rgba(0,0,0,0.40);--shadow-inset-sm:0 1px 0 rgba(255,255,255,0.05) inset;--font-sans:"Inter","Geist",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"Geist Mono","JetBrains Mono",ui-monospace,"SF Mono",monospace;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--text-xs:12px;--text-sm:13px;--text-base:16px;--text-lg:18px;--text-xl:20px;--text-2xl:24px;--text-3xl:30px;--text-4xl:40px;--text-5xl:56px;--text-6xl:72px;--lh-tight:1.10;--lh-snug:1.25;--lh-normal:1.50;--lh-relaxed:1.65;--ls-tighter:-0.02em;--ls-tight:-0.01em;--ls-normal:0em;--ls-wide:0.06em;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:20px;--sp-6:24px;--sp-8:32px;--sp-10:40px;--sp-12:48px;--sp-16:64px;--sp-20:80px;--sp-24:96px;--blur-sm:blur(8px);--blur-md:blur(20px);--blur-lg:blur(40px);--sidebar-w:232px;--sidebar-w-collapsed:60px;--topbar-h:52px;--nav-h:72px;--content-max:1200px;--content-max-wide:1440px;--ui-text-xs:11px;--ui-text-sm:12.5px;--ui-text-base:13.5px;--ui-text-md:15px;--ui-icon-sm:14px;--ui-icon-md:16px;--ui-control-h:32px;--ui-brand-sq:28px;--background:var(--bg-base);--bg-primary:var(--bg-base);--bg-surface:var(--bg-panel);--bg-elevated:var(--bg-elevated);--foreground:var(--fg-primary);--text-default:var(--fg-primary);--text-muted:var(--fg-secondary);--accent-primary:var(--accent);--primary:var(--accent);--primary-foreground:var(--fg-on-accent);--border:var(--border-default);--input:var(--border-default);--ring:var(--accent);--card:var(--bg-panel);--card-foreground:var(--fg-primary);--popover:var(--bg-elevated);--popover-foreground:var(--fg-primary);--muted:var(--bg-panel);--muted-foreground:var(--fg-secondary);--secondary:var(--bg-panel);--secondary-foreground:var(--fg-primary);--destructive:var(--status-red);--destructive-foreground:var(--fg-primary);--green:var(--status-green);--green-soft:var(--status-green-soft);--amber:var(--status-amber);--amber-soft:var(--status-amber-soft);--violet:var(--status-violet);--violet-soft:var(--status-violet-soft);--pink:var(--status-pink);--pink-soft:var(--status-pink-soft);--red:var(--status-red);--cyan-status:var(--status-cyan);--shadow-subtle:var(--shadow-sm);--glow-accent:var(--accent-glow);--font-family-primary:var(--font-sans);--font-mono:var(--font-mono);--radius:var(--r-sm);--radius-sm:var(--r-xs);--radius-md:var(--r-sm);--radius-lg:var(--r-md);--space-1:var(--sp-2);--space-2:var(--sp-4);--space-3:var(--sp-6);--space-4:var(--sp-8);--space-5:var(--sp-12);--space-6:var(--sp-16);--space-7:var(--sp-24);--xxl-accent:var(--accent);--xxl-accent-hover:var(--accent-hover);--xxl-accent-soft:var(--accent-soft);--xxl-accent-border:var(--accent-border);--xxl-green:var(--status-green);--xxl-green-soft:var(--status-green-soft);--xxl-amber:var(--status-amber);--xxl-amber-soft:var(--status-amber-soft);--xxl-violet:var(--status-violet);--xxl-violet-soft:var(--status-violet-soft);--xxl-red:var(--status-red);--xxl-red-soft:var(--status-red-soft);--xxl-cyan:var(--status-cyan);--xxl-primary:var(--accent);--xxl-secondary:var(--bg-panel);--doublexl-primary:var(--accent);--doublexl-primary-rgb:93,135,238;--doublexl-secondary:var(--bg-panel);--doublexl-accent:var(--accent);--doublexl-font-sans:var(--font-sans);--doublexl-font-mono:var(--font-mono);--doublexl-shadow-sm:var(--shadow-sm);--doublexl-shadow-md:var(--shadow-md);--doublexl-shadow-lg:var(--shadow-lg);--doublexl-radius-sm:var(--r-xs);--doublexl-radius-md:var(--r-sm);--doublexl-radius-lg:var(--r-md);--doublexl-spacing-xs:var(--sp-1);--doublexl-spacing-sm:var(--sp-2);--doublexl-spacing-md:var(--sp-4);--doublexl-spacing-lg:var(--sp-6);--doublexl-spacing-xl:var(--sp-8);--dk-bg-base:#0B0F14;--dk-bg-panel:rgba(17,22,32,0.90);--dk-bg-elevated:rgba(22,28,38,0.85);--dk-bg-glass:rgba(26,32,48,0.72);--dk-bg-glass-heavy:rgba(22,28,38,0.90);--dk-bg-overlay:rgba(6,9,15,0.70);--dk-grad-page:radial-gradient(ellipse 110% 58% at 50% -18%,rgba(93,135,238,0.10) 0%,transparent 62%),#0B0F14;--dk-grad-brand:linear-gradient(16deg,#5D87EE 14.79%,#7A52D0 85.21%);--dk-grad-brand-soft:linear-gradient(16deg,rgba(93,135,238,0.14),rgba(122,82,208,0.08));--dk-grad-stream:linear-gradient(16deg,#EE8B3A 14.79%,#EE5D7A 85.21%);--dk-grad-cool:linear-gradient(16deg,#40B8EE 14.79%,#B06AEE 85.21%);--dk-grad-cyan:linear-gradient(135deg,#00D1FF,#67E8F9);--dk-grad-cyan-soft:linear-gradient(135deg,rgba(0,209,255,0.14),rgba(103,232,249,0.08));--dk-grad-shimmer:linear-gradient(105deg,transparent 40%,rgba(255,255,255,0.06) 50%,transparent 60%);--dk-fg-primary:#F5F7FA;--dk-fg-secondary:#8A95A3;--dk-fg-tertiary:#5A6470;--dk-fg-muted:#3E464F;--dk-fg-on-accent:#0A0E18;--dk-accent:#5D87EE;--dk-accent-hover:#7298F2;--dk-accent-active:#4A70D8;--dk-accent-soft:rgba(93,135,238,0.14);--dk-accent-border:rgba(93,135,238,0.35);--dk-accent-glow:0 0 0 1px rgba(93,135,238,0.30),0 0 16px rgba(93,135,238,0.20);--dk-accent-cyan:#00D1FF;--dk-accent-cyan-hover:#67E8F9;--dk-accent-cyan-active:#0891B2;--dk-accent-cyan-soft:rgba(0,209,255,0.12);--dk-accent-cyan-border:rgba(0,209,255,0.34);--dk-accent-cyan-glow:0 0 0 1px rgba(0,209,255,0.30),0 0 12px rgba(0,209,255,0.25);--dk-accent-answer:#5D87EE;--dk-accent-stream:#EE8B3A;--dk-accent-draft:#EE5D7A;--dk-accent-align:#B06AEE;--dk-accent-respond:#40C878;--dk-accent-ops:#C8A83A;--dk-accent-vision:#40B8EE;--dk-hue-answer:250;--dk-hue-stream:35;--dk-hue-draft:355;--dk-hue-align:295;--dk-hue-respond:155;--dk-hue-ops:75;--dk-hue-vision:215;--dk-border-subtle:rgba(255,255,255,0.06);--dk-border-default:#1A2030;--dk-border-strong:rgba(255,255,255,0.14);--dk-border-accent:rgba(93,135,238,0.40);--dk-shadow-xs:0 1px 2px rgba(0,0,0,0.35);--dk-shadow-sm:0 1px 2px rgba(0,0,0,0.40);--dk-shadow-md:0 2px 10px rgba(0,0,0,0.25);--dk-shadow-lg:0 8px 24px rgba(0,0,0,0.34);--dk-shadow-xl:0 16px 40px rgba(0,0,0,0.40);--dk-blur-sm:blur(8px);--dk-blur-md:blur(20px);--dk-blur-lg:blur(40px);--dk-r-xs:4px;--dk-r-sm:8px;--dk-r-md:12px;--dk-r-lg:16px;--dk-r-xl:20px;--dk-r-2xl:28px;--dk-r-full:9999px;--dk-sp-1:4px;--dk-sp-2:8px;--dk-sp-3:12px;--dk-sp-4:16px;--dk-sp-5:20px;--dk-sp-6:24px;--dk-sp-8:32px;--dk-sp-10:40px;--dk-sp-12:48px;--dk-sp-16:64px;--dk-sp-20:80px;--dk-sp-24:96px;--dk-font-sans:"Inter","Geist",system-ui,sans-serif;--dk-font-mono:"Geist Mono","JetBrains Mono",ui-monospace,monospace;--dk-text-xs:12px;--dk-text-sm:13px;--dk-text-base:16px;--dk-text-lg:18px;--dk-text-xl:20px;--dk-text-2xl:24px;--dk-text-3xl:30px;--dk-text-4xl:40px;--dk-text-5xl:56px;--dk-text-6xl:72px;--dk-lh-tight:1.10;--dk-lh-snug:1.25;--dk-lh-normal:1.50;--dk-lh-relaxed:1.65;--dk-ls-tighter:-0.02em;--dk-ls-tight:-0.01em;--dk-ls-normal:0em;--dk-ls-wide:0.06em;--dk-green:#40C878;--dk-green-soft:rgba(64,200,120,0.14);--dk-amber:#C8A83A;--dk-amber-soft:rgba(200,168,58,0.14);--dk-red:#E05050;--dk-red-soft:rgba(224,80,80,0.14);--dk-violet:#B06AEE;--dk-violet-soft:rgba(176,106,238,0.14);--dk-pink:#EE5D7A;--dk-pink-soft:rgba(238,93,122,0.14);--dk-cyan:#40B8EE;--dk-cyan-soft:rgba(64,184,238,0.14);--dk-orange:#EE8B3A;--dk-orange-soft:rgba(238,139,58,0.14)}.xxl-light,[data-theme=light]{--dk-bg-base:#F2F3FA;--dk-bg-panel:rgba(255,255,255,0.90);--dk-bg-elevated:rgba(255,255,255,0.96);--dk-bg-glass:rgba(255,255,255,0.72);--dk-bg-glass-heavy:rgba(255,255,255,0.88);--dk-bg-overlay:rgba(0,0,0,0.40);--dk-grad-page:radial-gradient(ellipse 140% 80% at 60% -10%,rgba(93,135,238,0.25) 0%,transparent 70%),radial-gradient(ellipse 80% 60% at -10% 80%,rgba(122,82,208,0.15) 0%,transparent 60%),#F2F3FA;--dk-grad-brand:linear-gradient(16deg,oklch(0.50 0.18 250) 14.79%,oklch(0.46 0.18 280) 85.21%);--dk-grad-brand-soft:linear-gradient(16deg,oklch(0.50 0.18 250/0.12),oklch(0.46 0.18 280/0.08));--dk-fg-primary:oklch(0.14 0.006 260);--dk-fg-secondary:oklch(0.40 0.010 260);--dk-fg-tertiary:oklch(0.55 0.008 260);--dk-fg-muted:oklch(0.68 0.006 260);--dk-fg-on-accent:oklch(0.99 0.002 260);--dk-accent:oklch(0.50 0.17 250);--dk-accent-hover:oklch(0.45 0.17 250);--dk-accent-active:oklch(0.40 0.17 250);--dk-accent-soft:oklch(0.50 0.17 250/0.10);--dk-accent-border:oklch(0.50 0.17 250/0.28);--dk-accent-glow:0 0 0 1px oklch(0.50 0.17 250/0.25),0 0 20px oklch(0.50 0.17 250/0.14);--dk-border-subtle:rgba(0,0,0,0.05);--dk-border-default:rgba(0,0,0,0.09);--dk-border-strong:rgba(0,0,0,0.15);--dk-border-accent:oklch(0.50 0.17 250/0.35);--dk-shadow-xs:0 1px 2px rgba(0,0,0,0.08);--dk-shadow-sm:0 1px 0 rgba(255,255,255,0.80) inset,0 2px 4px rgba(0,0,0,0.08);--dk-shadow-md:0 1px 0 rgba(255,255,255,0.80) inset,0 4px 12px rgba(0,0,0,0.10),0 1px 3px rgba(0,0,0,0.06);--dk-shadow-lg:0 1px 0 rgba(255,255,255,0.80) inset,0 8px 24px rgba(0,0,0,0.12),0 2px 8px rgba(0,0,0,0.06);--dk-shadow-xl:0 1px 0 rgba(255,255,255,0.80) inset,0 20px 40px rgba(0,0,0,0.14),0 8px 20px rgba(0,0,0,0.08);--dk-green:oklch(0.52 0.16 155);--dk-green-soft:oklch(0.52 0.16 155/0.12);--dk-amber:oklch(0.58 0.14 75);--dk-amber-soft:oklch(0.58 0.14 75/0.12);--dk-red:oklch(0.52 0.20 25);--dk-red-soft:oklch(0.52 0.20 25/0.10);--dk-violet:oklch(0.52 0.17 295);--dk-violet-soft:oklch(0.52 0.17 295/0.12);--dk-pink:oklch(0.52 0.17 355);--dk-pink-soft:oklch(0.52 0.17 355/0.10);--dk-cyan:oklch(0.50 0.12 215);--dk-cyan-soft:oklch(0.50 0.12 215/0.12);--dk-orange:oklch(0.58 0.14 45);--dk-orange-soft:oklch(0.58 0.14 45/0.12)}.xxl-theme-system{@media (prefers-color-scheme:light){--dk-bg-base:#F2F3FA;--dk-bg-panel:rgba(255,255,255,0.90);--dk-bg-elevated:rgba(255,255,255,0.96);--dk-bg-glass:rgba(255,255,255,0.72);--dk-bg-glass-heavy:rgba(255,255,255,0.88);--dk-bg-overlay:rgba(0,0,0,0.40);--dk-grad-page:radial-gradient(ellipse 140% 80% at 60% -10%,rgba(93,135,238,0.25) 0%,transparent 70%),radial-gradient(ellipse 80% 60% at -10% 80%,rgba(122,82,208,0.15) 0%,transparent 60%),#F2F3FA;--dk-fg-primary:oklch(0.14 0.006 260);--dk-fg-secondary:oklch(0.40 0.010 260);--dk-fg-tertiary:oklch(0.55 0.008 260);--dk-fg-muted:oklch(0.68 0.006 260);--dk-fg-on-accent:oklch(0.99 0.002 260);--dk-accent:oklch(0.50 0.17 250);--dk-accent-hover:oklch(0.45 0.17 250);--dk-accent-soft:oklch(0.50 0.17 250/0.10);--dk-border-subtle:rgba(0,0,0,0.05);--dk-border-default:rgba(0,0,0,0.09);--dk-border-strong:rgba(0,0,0,0.15);--dk-shadow-md:0 1px 0 rgba(255,255,255,0.80) inset,0 4px 12px rgba(0,0,0,0.10),0 1px 3px rgba(0,0,0,0.06)}}.xxl-product-answer,[data-product=answer]{--dk-accent:#5D87EE;--dk-accent-hover:#7298F2;--dk-accent-active:#4A70D8;--dk-accent-soft:rgba(93,135,238,0.14);--dk-accent-border:rgba(93,135,238,0.35);--dk-accent-glow:0 0 0 1px rgba(93,135,238,0.30),0 0 16px rgba(93,135,238,0.20)}.xxl-product-stream,[data-product=stream]{--dk-accent:#EE8B3A;--dk-accent-hover:oklch(from #EE8B3A calc(l + 0.05) c h);--dk-accent-active:oklch(from #EE8B3A calc(l - 0.06) c h);--dk-accent-soft:rgba(238,139,58,0.14);--dk-accent-border:rgba(238,139,58,0.35);--dk-accent-glow:0 0 0 1px rgba(238,139,58,0.30),0 0 16px rgba(238,139,58,0.18)}.xxl-product-draft,[data-product=draft]{--dk-accent:#EE5D7A;--dk-accent-hover:oklch(from #EE5D7A calc(l + 0.05) c h);--dk-accent-active:oklch(from #EE5D7A calc(l - 0.06) c h);--dk-accent-soft:rgba(238,93,122,0.14);--dk-accent-border:rgba(238,93,122,0.35);--dk-accent-glow:0 0 0 1px rgba(238,93,122,0.30),0 0 16px rgba(238,93,122,0.18)}.xxl-product-align,[data-product=align]{--dk-accent:#B06AEE;--dk-accent-hover:oklch(from #B06AEE calc(l + 0.05) c h);--dk-accent-active:oklch(from #B06AEE calc(l - 0.06) c h);--dk-accent-soft:rgba(176,106,238,0.14);--dk-accent-border:rgba(176,106,238,0.35);--dk-accent-glow:0 0 0 1px rgba(176,106,238,0.30),0 0 16px rgba(176,106,238,0.18)}.xxl-product-respond,[data-product=respond]{--dk-accent:#40C878;--dk-accent-hover:oklch(from #40C878 calc(l + 0.05) c h);--dk-accent-active:oklch(from #40C878 calc(l - 0.06) c h);--dk-accent-soft:rgba(64,200,120,0.14);--dk-accent-border:rgba(64,200,120,0.35);--dk-accent-glow:0 0 0 1px rgba(64,200,120,0.30),0 0 16px rgba(64,200,120,0.18)}.xxl-product-ops,[data-product=ops]{--dk-accent:#C8A83A;--dk-accent-hover:oklch(from #C8A83A calc(l + 0.05) c h);--dk-accent-active:oklch(from #C8A83A calc(l - 0.06) c h);--dk-accent-soft:rgba(200,168,58,0.14);--dk-accent-border:rgba(200,168,58,0.35);--dk-accent-glow:0 0 0 1px rgba(200,168,58,0.30),0 0 16px rgba(200,168,58,0.18)}.xxl-product-vision,[data-product=vision]{--dk-accent:#40B8EE;--dk-accent-hover:oklch(from #40B8EE calc(l + 0.05) c h);--dk-accent-active:oklch(from #40B8EE calc(l - 0.06) c h);--dk-accent-soft:rgba(64,184,238,0.14);--dk-accent-border:rgba(64,184,238,0.35);--dk-accent-glow:0 0 0 1px rgba(64,184,238,0.30),0 0 16px rgba(64,184,238,0.18)}.xxl-glass{background:var(--dk-bg-glass)}.xxl-glass,.xxl-glass-heavy{backdrop-filter:var(--dk-blur-md);-webkit-backdrop-filter:var(--dk-blur-md);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-lg)}.xxl-glass-heavy{background:var(--dk-bg-glass-heavy)}.xxl-surface{background:var(--dk-bg-panel);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-lg);box-shadow:var(--dk-shadow-md)}.xxl-surface-elevated{background:var(--dk-bg-elevated);border:1px solid var(--dk-border-strong);border-radius:var(--dk-r-lg);box-shadow:var(--dk-shadow-lg)}.xxl-nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 var(--dk-sp-8);background:var(--dk-bg-glass);backdrop-filter:var(--dk-blur-md);-webkit-backdrop-filter:var(--dk-blur-md);border-bottom:1px solid var(--dk-border-subtle)}.xxl-nav-logo{font-family:var(--dk-font-sans);font-size:var(--dk-text-base);font-weight:600;color:var(--dk-fg-primary);letter-spacing:var(--dk-ls-normal);text-decoration:none}.xxl-nav-links{display:flex;align-items:center;gap:var(--dk-sp-2);list-style:none;margin:0;padding:0}.xxl-nav-link{padding:var(--dk-sp-1) var(--dk-sp-4);border-radius:var(--dk-r-sm);font-size:var(--dk-text-sm);font-weight:500;color:var(--dk-fg-secondary);text-decoration:none;transition:all .14s ease}.xxl-nav-link:hover{color:var(--dk-fg-primary);background:var(--dk-border-subtle)}.xxl-nav-link.active{color:var(--dk-fg-primary);background:var(--dk-accent-soft)}.xxl-card{background:var(--dk-bg-panel);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-lg);padding:var(--dk-sp-6);box-shadow:var(--dk-shadow-sm);transition:box-shadow .18s ease,border-color .18s ease}.xxl-card:hover{box-shadow:var(--dk-shadow-md);border-color:var(--dk-border-strong)}.xxl-card-glass{background:var(--dk-bg-glass);backdrop-filter:var(--dk-blur-md);-webkit-backdrop-filter:var(--dk-blur-md);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-xl);padding:var(--dk-sp-6);box-shadow:var(--dk-shadow-md);transition:box-shadow .18s ease,border-color .18s ease}.xxl-card-glass:hover{box-shadow:var(--dk-shadow-lg);border-color:var(--dk-border-strong)}.xxl-card-feature{background:var(--dk-grad-brand-soft);border:1px solid var(--dk-accent-border);border-radius:var(--dk-r-xl);padding:var(--dk-sp-8);box-shadow:var(--dk-shadow-md),var(--dk-accent-glow)}.xxl-card-pricing{background:var(--dk-bg-elevated);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-xl);padding:var(--dk-sp-8);box-shadow:var(--dk-shadow-lg);text-align:center}.xxl-card-pricing.featured{background:var(--dk-grad-brand);border-color:transparent;color:var(--dk-fg-on-accent)}.xxl-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--dk-sp-2);height:36px;padding:0 var(--dk-sp-5);border-radius:var(--dk-r-sm);font-family:var(--dk-font-sans);font-size:var(--dk-text-sm);font-weight:500;text-decoration:none;cursor:pointer;transition:all .14s ease;white-space:nowrap;border:none;outline:none}.xxl-btn:focus-visible{box-shadow:0 0 0 3px var(--dk-accent-soft),0 0 0 1px var(--dk-accent)}.xxl-btn-primary{background:var(--dk-accent);color:var(--dk-fg-on-accent);box-shadow:var(--dk-shadow-sm)}.xxl-btn-primary:hover{background:var(--dk-accent-hover);box-shadow:var(--dk-shadow-md),var(--dk-accent-glow);transform:translateY(-1px)}.xxl-btn-primary:active{background:var(--dk-accent-active);transform:translateY(0);box-shadow:var(--dk-shadow-xs)}.xxl-btn-cta{background:var(--dk-accent-cyan);color:var(--dk-fg-on-accent);box-shadow:var(--dk-shadow-sm)}.xxl-btn-cta:hover{background:var(--dk-accent-cyan-hover);box-shadow:var(--dk-shadow-md),var(--dk-accent-cyan-glow);transform:translateY(-1px)}.xxl-btn-cta:active{background:var(--dk-accent-cyan-active);transform:translateY(0);box-shadow:var(--dk-shadow-xs)}.xxl-btn-shiny{background:var(--dk-grad-brand);color:var(--dk-fg-on-accent);box-shadow:var(--dk-shadow-sm),var(--dk-accent-glow);position:relative;overflow:hidden}.xxl-btn-shiny:before{content:"";position:absolute;inset:0;background:var(--dk-grad-shimmer);opacity:0;transition:opacity .3s ease}.xxl-btn-shiny:hover:before{opacity:1}.xxl-btn-shiny:hover{transform:translateY(-1px);box-shadow:var(--dk-shadow-md),var(--dk-accent-glow)}.xxl-btn-secondary{background:var(--dk-accent-soft);color:var(--dk-accent);border:1px solid var(--dk-accent-border)}.xxl-btn-secondary:hover{background:oklch(from var(--dk-accent) l c h/.2);box-shadow:var(--dk-accent-glow)}.xxl-btn-ghost{background:transparent;color:var(--dk-fg-secondary);border:1px solid var(--dk-border-default)}.xxl-btn-ghost:hover{background:var(--dk-border-subtle);color:var(--dk-fg-primary);border-color:var(--dk-border-strong)}.xxl-btn-icon{width:36px;height:36px;padding:0;border-radius:var(--dk-r-sm)}.xxl-btn-sm{height:28px;padding:0 var(--dk-sp-3);font-size:var(--dk-text-xs);border-radius:var(--dk-r-xs)}.xxl-btn-lg{height:44px;padding:0 var(--dk-sp-8);font-size:var(--dk-text-base);border-radius:var(--dk-r-md)}.xxl-input{width:100%;height:36px;padding:0 var(--dk-sp-4);background:var(--dk-bg-elevated);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-sm);font-family:var(--dk-font-sans);font-size:var(--dk-text-sm);color:var(--dk-fg-primary);outline:none;transition:border-color .14s ease,box-shadow .14s ease;caret-color:var(--dk-accent-cyan)}.xxl-input::-moz-placeholder{color:var(--dk-fg-muted)}.xxl-input::placeholder{color:var(--dk-fg-muted)}.xxl-input:focus{border-color:var(--dk-accent-cyan);box-shadow:0 0 0 3px var(--dk-accent-cyan-soft)}.xxl-input:disabled{opacity:.45;cursor:not-allowed}.xxl-textarea{padding:var(--dk-sp-3) var(--dk-sp-4);height:auto;min-height:80px;resize:vertical}.xxl-label{display:block;font-size:var(--dk-text-xs);font-weight:500;color:var(--dk-fg-secondary);margin-bottom:var(--dk-sp-2);letter-spacing:.01em}.xxl-input-group{display:flex;flex-direction:column;gap:var(--dk-sp-2)}.xxl-badge{display:inline-flex;align-items:center;gap:var(--dk-sp-1);padding:2px var(--dk-sp-3);border-radius:var(--dk-r-full);font-size:var(--dk-text-xs);font-weight:500;white-space:nowrap}.xxl-badge-accent{background:var(--dk-accent-soft);color:var(--dk-accent)}.xxl-badge-cyan{background:var(--dk-accent-cyan-soft);color:var(--dk-accent-cyan)}.xxl-badge-green{background:var(--dk-green-soft);color:var(--dk-green)}.xxl-badge-amber{background:var(--dk-amber-soft);color:var(--dk-amber)}.xxl-badge-red{background:var(--dk-red-soft);color:var(--dk-red)}.xxl-badge-violet{background:var(--dk-violet-soft);color:var(--dk-violet)}.xxl-badge-pink{background:var(--dk-pink-soft);color:var(--dk-pink)}.xxl-badge-orange{background:var(--dk-orange-soft);color:var(--dk-orange)}.xxl-badge-outline{background:transparent;color:var(--dk-fg-secondary);border:1px solid var(--dk-border-default)}.xxl-notification-list{display:flex;flex-direction:column;gap:var(--dk-sp-1)}.xxl-notification-item{display:flex;align-items:center;gap:var(--dk-sp-3);padding:var(--dk-sp-3) var(--dk-sp-4);border-radius:var(--dk-r-sm);transition:background .12s ease}.xxl-notification-item:hover{background:var(--dk-border-subtle)}.xxl-notification-avatar{width:32px;height:32px;border-radius:var(--dk-r-full);-o-object-fit:cover;object-fit:cover;flex-shrink:0}.xxl-notification-content{flex:1;min-width:0}.xxl-notification-title{font-size:var(--dk-text-sm);font-weight:500;color:var(--dk-fg-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.xxl-notification-subtitle{font-size:var(--dk-text-xs);color:var(--dk-fg-tertiary);margin-top:1px}.xxl-notification-time{font-size:var(--dk-text-xs);color:var(--dk-fg-muted);flex-shrink:0}.xxl-sidemenu{display:flex;flex-direction:column;gap:2px;padding:var(--dk-sp-2)}.xxl-sidemenu-item{display:flex;align-items:center;gap:var(--dk-sp-3);padding:var(--dk-sp-2) var(--dk-sp-3);border-radius:var(--dk-r-sm);font-size:var(--dk-text-sm);font-weight:400;color:var(--dk-fg-secondary);cursor:pointer;transition:all .12s ease;text-decoration:none}.xxl-sidemenu-item:hover{background:var(--dk-border-subtle);color:var(--dk-fg-primary)}.xxl-sidemenu-item.active{background:var(--dk-accent-soft);color:var(--dk-accent);font-weight:500;border-left:2px solid var(--dk-accent)}.xxl-sidemenu-icon{width:16px;height:16px;flex-shrink:0;opacity:.7}.xxl-sidemenu-item.active .xxl-sidemenu-icon{opacity:1}.xxl-switch{position:relative;display:inline-flex;align-items:center;gap:var(--dk-sp-3);cursor:pointer}.xxl-switch-track{position:relative;width:40px;height:22px;background:var(--dk-border-default);border-radius:var(--dk-r-full);transition:background .15s ease;flex-shrink:0}.xxl-switch-thumb{position:absolute;top:3px;left:3px;width:16px;height:16px;background:white;border-radius:var(--dk-r-full);box-shadow:var(--dk-shadow-xs);transition:transform .15s ease}input[type=checkbox]:checked+.xxl-switch-track{background:var(--dk-accent)}input[type=checkbox]:checked+.xxl-switch-track .xxl-switch-thumb{transform:translateX(18px)}.xxl-tabs{display:inline-flex;background:var(--dk-border-subtle);border-radius:var(--dk-r-sm);padding:3px;gap:2px}.xxl-tab{padding:var(--dk-sp-1) var(--dk-sp-4);border-radius:5px;font-size:var(--dk-text-xs);font-weight:500;color:var(--dk-fg-secondary);cursor:pointer;transition:all .14s ease;border:none;background:transparent;white-space:nowrap}.xxl-tab.active{background:var(--dk-bg-elevated);color:var(--dk-fg-primary);box-shadow:var(--dk-shadow-sm)}.xxl-modal-backdrop{position:fixed;inset:0;background:var(--dk-bg-overlay);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;padding:var(--dk-sp-6)}.xxl-modal{background:var(--dk-bg-elevated);border:1px solid var(--dk-border-strong);border-radius:var(--dk-r-xl);padding:var(--dk-sp-8);box-shadow:var(--dk-shadow-xl);width:100%;max-width:360px;position:relative}.xxl-modal-close{position:absolute;top:var(--dk-sp-4);right:var(--dk-sp-4);width:28px;height:28px;border-radius:var(--dk-r-xs);background:var(--dk-border-subtle);border:1px solid var(--dk-border-default);color:var(--dk-fg-tertiary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .12s ease}.xxl-modal-close:hover{background:var(--dk-border-default);color:var(--dk-fg-primary)}.xxl-modal-title{font-size:var(--dk-text-xl);font-weight:600;color:var(--dk-fg-primary);margin-bottom:var(--dk-sp-3)}.xxl-modal-body{font-size:var(--dk-text-sm);color:var(--dk-fg-secondary);line-height:var(--dk-lh-normal);margin-bottom:var(--dk-sp-6)}.xxl-modal-actions{display:flex;gap:var(--dk-sp-3);justify-content:flex-end}.xxl-popover{background:var(--dk-bg-glass-heavy);backdrop-filter:var(--dk-blur-md);-webkit-backdrop-filter:var(--dk-blur-md);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-lg);box-shadow:var(--dk-shadow-xl);padding:var(--dk-sp-2);z-index:150}.xxl-popover-item{display:flex;align-items:center;gap:var(--dk-sp-3);padding:var(--dk-sp-2) var(--dk-sp-3);border-radius:var(--dk-r-xs);font-size:var(--dk-text-sm);color:var(--dk-fg-secondary);cursor:pointer;transition:all .1s ease}.xxl-popover-item:hover{background:var(--dk-border-subtle);color:var(--dk-fg-primary)}.xxl-popover-separator{height:1px;background:var(--dk-border-subtle);margin:var(--dk-sp-2) 0}.xxl-code-block{background:var(--dk-bg-base);border:1px solid var(--dk-border-default);border-radius:var(--dk-r-lg);overflow:hidden;box-shadow:var(--dk-shadow-md)}.xxl-code-header{display:flex;align-items:center;gap:var(--dk-sp-4);padding:var(--dk-sp-3) var(--dk-sp-4);background:var(--dk-bg-panel);border-bottom:1px solid var(--dk-border-subtle)}.xxl-code-dots{display:flex;gap:6px}.xxl-code-dot{width:10px;height:10px;border-radius:var(--dk-r-full)}.xxl-code-dot-red{background:#FF5F57}.xxl-code-dot-amber{background:#FEBC2E}.xxl-code-dot-green{background:#28C840}.xxl-code-tabs{display:flex;gap:var(--dk-sp-1)}.xxl-code-tab{padding:var(--dk-sp-1) var(--dk-sp-3);border-radius:5px;font-size:var(--dk-text-xs);font-weight:500;color:var(--dk-fg-tertiary);cursor:pointer;transition:all .12s ease;border:none;background:transparent}.xxl-code-tab.active{background:var(--dk-accent-soft);color:var(--dk-accent)}.xxl-code-body{padding:var(--dk-sp-5);font-family:var(--dk-font-mono);font-size:var(--dk-text-xs);line-height:1.7;color:var(--dk-fg-secondary);overflow-x:auto}.xxl-price-amount{font-size:var(--dk-text-5xl);font-weight:700;color:var(--dk-fg-primary);letter-spacing:var(--dk-ls-tighter);line-height:1}.xxl-price-amount sup{font-size:var(--dk-text-xl);font-weight:600;vertical-align:super;margin-right:2px}.xxl-price-period{font-size:var(--dk-text-sm);color:var(--dk-fg-tertiary);margin-top:var(--dk-sp-1)}.xxl-price-features{display:flex;flex-direction:column;gap:var(--dk-sp-3);margin:var(--dk-sp-6) 0;list-style:none;padding:0}.xxl-price-feature{display:flex;align-items:center;gap:var(--dk-sp-3);font-size:var(--dk-text-sm);color:var(--dk-fg-secondary)}.xxl-price-feature:before{content:"";width:16px;height:16px;background:var(--dk-accent-soft);border-radius:var(--dk-r-full);flex-shrink:0;background-image:url("data:image/svg+xml,%3Csvg width='10' height='8' viewBox='0 0 10 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 4L3.5 6.5L9 1.5' stroke='%235D87EE' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:50%}.xxl-alert{display:flex;gap:var(--dk-sp-3);padding:var(--dk-sp-4);border-radius:var(--dk-r-md);border:1px solid}.xxl-alert-info{background:var(--dk-accent-soft);border-color:var(--dk-accent-border)}.xxl-alert-success{background:var(--dk-green-soft);border-color:rgba(64,200,120,.3)}.xxl-alert-warning{background:var(--dk-amber-soft);border-color:rgba(200,168,58,.3)}.xxl-alert-error{background:var(--dk-red-soft);border-color:rgba(224,80,80,.3)}.xxl-alert-icon{width:18px;height:18px;flex-shrink:0;margin-top:1px}.xxl-alert-title{font-size:var(--dk-text-sm);font-weight:600;color:var(--dk-fg-primary);margin-bottom:2px}.xxl-alert-body{font-size:var(--dk-text-xs);color:var(--dk-fg-secondary);line-height:var(--dk-lh-normal)}.xxl-page-bg{min-height:100vh;background:var(--dk-grad-page)}.xxl-container{max-width:1200px;margin:0 auto;padding:0 var(--dk-sp-8)}.xxl-container-wide{max-width:1440px;margin:0 auto;padding:0 var(--dk-sp-12)}.xxl-section{padding:var(--dk-sp-20) 0}.xxl-divider{height:1px;background:var(--dk-border-subtle);margin:0}.xxl-heading-display{font-family:var(--dk-font-sans);font-size:var(--dk-text-6xl)}.xxl-heading-1,.xxl-heading-display{font-weight:700;line-height:var(--dk-lh-tight);letter-spacing:var(--dk-ls-tighter);color:var(--dk-fg-primary)}.xxl-heading-1{font-size:var(--dk-text-5xl)}.xxl-heading-2{font-size:var(--dk-text-4xl)}.xxl-heading-2,.xxl-heading-3{font-weight:600;line-height:var(--dk-lh-snug);letter-spacing:var(--dk-ls-tight);color:var(--dk-fg-primary)}.xxl-heading-3{font-size:var(--dk-text-3xl)}.xxl-heading-4{font-size:var(--dk-text-2xl)}.xxl-heading-4,.xxl-heading-5{font-weight:600;line-height:var(--dk-lh-snug);color:var(--dk-fg-primary)}.xxl-heading-5{font-size:var(--dk-text-xl)}.xxl-body-lg{font-size:var(--dk-text-lg);line-height:var(--dk-lh-relaxed);color:var(--dk-fg-secondary)}.xxl-body{font-size:var(--dk-text-base)}.xxl-body,.xxl-body-sm{line-height:var(--dk-lh-normal);color:var(--dk-fg-secondary)}.xxl-body-sm{font-size:var(--dk-text-sm)}.xxl-caption{font-weight:500;line-height:var(--dk-lh-snug)}.xxl-caption,.xxl-label-mono{font-size:var(--dk-text-xs);color:var(--dk-fg-tertiary)}.xxl-label-mono{font-family:var(--dk-font-mono)}.xxl-eyebrow{font-size:var(--dk-text-xs);font-weight:600;letter-spacing:var(--dk-ls-wide);text-transform:uppercase;color:var(--dk-accent)}.xxl-text-gradient{background:var(--dk-grad-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.xxl-text-gradient-cyan{background:var(--dk-grad-cyan);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.xxl-text-gradient-cool{background:var(--dk-grad-cool);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@keyframes xxl-fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes xxl-scale-in{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes xxl-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes xxl-pulse-glow{0%,to{box-shadow:var(--dk-accent-glow)}50%{box-shadow:0 0 0 1px var(--dk-accent-border),0 0 24px rgba(93,135,238,.3)}}.xxl-animate-fade-in{animation:xxl-fade-in .24s ease both}.xxl-animate-scale-in{animation:xxl-scale-in .18s ease-out both}.xxl-animate-pulse-glow{animation:xxl-pulse-glow 2.4s ease-in-out infinite}.xxl-skeleton{background:linear-gradient(90deg,var(--dk-border-subtle) 25%,var(--dk-border-default) 50%,var(--dk-border-subtle) 75%);background-size:200% 100%;animation:xxl-shimmer 1.6s ease-in-out infinite;border-radius:var(--dk-r-xs)}