:root{--st-color-primary:#2563eb;--st-color-primary-hover:#1451d8;--st-color-primary-active:#1147bc;--st-color-primary-soft:#e9effd;--st-color-primary-contrast:#fff;--st-color-secondary:#f97316;--st-color-secondary-hover:#e56106;--st-color-secondary-soft:#feeee3;--st-color-secondary-contrast:#111827;--st-neutral-50:#f9fafb;--st-neutral-100:#f2f3f5;--st-neutral-200:#e2e4e9;--st-neutral-300:#cbcfd8;--st-neutral-400:#969eb0;--st-neutral-500:#656f86;--st-neutral-600:#535b6e;--st-neutral-700:#424857;--st-neutral-800:#2c303a;--st-neutral-900:#181a20;--st-color-text:#181a20;--st-color-text-muted:#656f86;--st-color-border:#e2e4e9;--st-color-bg:#fff;--st-color-bg-soft:#f9fafb;--st-color-card:#fff;--st-surface-brand:linear-gradient(135deg,#0f3ea5,#3c51f3);--st-surface-secondary:linear-gradient(135deg,#cd5705,#f97316);--st-font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;--st-font-size-base:16px;--st-radius:8px;--st-radius-button:8px;--st-section-padding:72px;--st-content-width:1080px;--st-space-none:0px;--st-space-sm:32px;--st-space-md:56px;--st-space-lg:80px;--st-space-xl:120px;--st-tone-dark-text:#fff;--st-tone-dark-muted:#ffffffbf;--st-gradient-brand:var(--st-surface-brand);--st-gradient-sunset:linear-gradient(135deg,#f97316,#db2777);--st-gradient-ocean:linear-gradient(135deg,#0f766e,#0ea5e9);--st-gradient-mono:linear-gradient(135deg,#111827,#4b5563)}