:root{--xq-color-primary:#c0392b;--xq-color-primary-hover:#a02f22;--xq-color-primary-focus:#c0392b;--xq-color-on-primary:#ffffff;--xq-color-teacher-blue:#2c3e7a;--xq-color-teacher-blue-light:#e8ebf7;--xq-color-student-green:#1a6b45;--xq-color-student-green-light:#e1f3eb;--xq-color-ink:#1a1a1a;--xq-color-ink-main:#444444;--xq-color-ink-muted:#888888;--xq-color-ink-tertiary:#a0a0a0;--xq-color-canvas:#fdfaf6;--xq-color-surface-1:#ffffff;--xq-color-surface-2:#f4efe8;--xq-color-surface-3:#ede6d8;--xq-color-hairline:#d8cfbf;--xq-color-hairline-strong:#bcae97;--xq-color-info:#2c3e7a;--xq-color-success:#1a6b45;--xq-color-warning:#b45309;--xq-color-danger:#c0392b;--xq-font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Micro Hei",sans-serif;--xq-font-sans:var(--xq-font-family);--xq-font-serif:var(--xq-font-family);--xq-font-size-display-xl:64px;--xq-font-size-display-lg:44px;--xq-font-size-headline:24px;--xq-font-size-card-title:18px;--xq-font-size-subhead:16px;--xq-font-size-body:14px;--xq-font-size-body-sm:13px;--xq-font-size-caption:12px;--xq-font-size-chess-token:15px;--xq-line-height-tight:1.1;--xq-line-height-snug:1.25;--xq-line-height-normal:1.5;--xq-rounded-xs:2px;--xq-rounded-sm:4px;--xq-rounded-md:6px;--xq-rounded-full:9999px;--xq-spacing-xxs:4px;--xq-spacing-xs:8px;--xq-spacing-sm:12px;--xq-spacing-md:16px;--xq-spacing-lg:24px;--xq-spacing-xl:36px;--xq-spacing-section:72px;--xq-header-height:52px;--xq-scrollbar-width:8px;--xq-scrollbar-thumb:#bcae97;--xq-scrollbar-thumb-hover:#888888}