:root{--ll-color-primary:#111827;--ll-color-primary-hover:#0F172A;--ll-color-secondary:#F97316;--ll-color-secondary-hover:#EA580C;--ll-color-success:#047857;--ll-color-warning:#B45309;--ll-color-danger:#B91C1C;--ll-color-surface:#FFFFFF;--ll-color-surface-muted:#F8FAFC;--ll-color-border:#D1D5DB;--ll-color-neutral-50:#F9FAFB;--ll-color-neutral-100:#F3F4F6;--ll-color-neutral-300:#D1D5DB;--ll-color-neutral-600:#4B5563;--ll-color-neutral-700:#374151;--ll-color-neutral-900:#111827;--ll-spacing-1:4px;--ll-spacing-2:8px;--ll-spacing-3:12px;--ll-spacing-4:16px;--ll-spacing-5:24px;--ll-spacing-6:32px;--ll-spacing-7:48px;--ll-spacing-8:64px;--ll-font-body:"Noto Sans SC","Microsoft YaHei",sans-serif;--ll-font-heading:"Noto Sans SC","Microsoft YaHei",sans-serif;--ll-font-size-sm:14px;--ll-font-size-md:16px;--ll-font-size-lg:20px;--ll-font-size-xl:28px;--ll-line-tight:1.25;--ll-line-normal:1.6;--ll-font-weight-regular:400;--ll-font-weight-medium:500;--ll-font-weight-bold:700;--ll-shadow-none:none;--ll-shadow-low:0 1px 2px rgba(15,23,42,0.06);--ll-shadow-medium:0 12px 28px rgba(15,23,42,0.12);--ll-shadow-high:0 24px 56px rgba(15,23,42,0.18);--ll-radius-sm:8px;--ll-radius-md:14px;--ll-radius-lg:20px;--ll-radius-full:999px}*{box-sizing:border-box}html{min-width:320px;color:var(--ll-color-neutral-900);font-family:var(--ll-font-body);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}body,html{background:var(--ll-color-surface-muted)}body{min-height:100vh;margin:0}button,input,select,textarea{font:inherit}a,button,input,select,textarea{outline-color:var(--ll-color-secondary);outline-offset:2px}:focus-visible{outline:2px solid var(--ll-color-secondary)}a{color:inherit}