:root{color-scheme:light;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 24px;--radius-xl: 28px;--radius-full: 999px;--nav-height: 96px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;--text-xs: 12px;--text-sm: 14px;--text-base: 16px;--text-lg: 20px;--text-xl: 26px;--text-2xl: 34px;--color-bg: #f7f9fc;--color-surface-solid: #ffffff;--color-text: #232a34;--color-focus: var(--color-text);--color-text-muted: #566575;--color-border: #dce3eb;--color-accent: #1764cf;--color-accent-soft: #e7effb;--color-on-accent: #ffffff;--color-danger: #af3535;--color-danger-soft: #ffebeb;--color-danger-border: #efb9b9;--color-success: #466a5a;--color-success-soft: #eaf3ee;--color-success-border: #c3d9cc;--color-warning: #8a4b13;--color-warning-soft: #fff1e3;--color-warning-border: #e9ccad;--color-surface-glass: rgb(255 255 255 / 28%);--color-surface-glass-dark: rgb(246 250 255 / 36%);--color-border-glass: rgb(255 255 255 / 92%);--color-border-glass-dark: rgb(255 255 255 / 72%);--glass-edge: rgb(111 132 154 / 20%);--glass-highlight: rgb(255 255 255 / 96%);--glass-lowlight: rgb(57 78 103 / 24%);--glass-sheen: rgb(255 255 255 / 28%);--glass-selection: rgb(255 255 255 / 46%);--glass-text-support: rgb(255 255 255 / 68%);--shadow-1: 0 2px 8px rgb(30 49 69 / 4%);--shadow-2: 0 10px 30px rgb(30 49 69 / 10%), 0 2px 6px rgb(30 49 69 / 4%)}@media(prefers-color-scheme:dark){:root[data-theme=system]{color-scheme:dark;--color-bg: #242932;--color-surface-solid: #303843;--color-text: #f0f3f8;--color-text-muted: #b3becf;--color-border: #424c5c;--color-accent: #9cc5ff;--color-accent-soft: #273c58;--color-on-accent: #182b44;--color-danger: #ffb4b4;--color-danger-soft: #482e34;--color-danger-border: #79515a;--color-success: #b4d6c3;--color-success-soft: #2a3b35;--color-success-border: #506c5f;--color-warning: #efc090;--color-warning-soft: #413225;--color-warning-border: #796047;--color-surface-glass: rgb(39 49 63 / 58%);--color-surface-glass-dark: rgb(36 46 61 / 64%);--color-border-glass: rgb(189 207 229 / 24%);--color-border-glass-dark: rgb(189 207 229 / 20%);--glass-edge: rgb(0 0 0 / 35%);--glass-highlight: rgb(233 242 255 / 40%);--glass-lowlight: rgb(6 16 33 / 32%);--glass-sheen: rgb(255 255 255 / 9%);--glass-selection: rgb(166 190 224 / 16%);--glass-text-support: rgb(39 49 63 / 86%);--shadow-1: 0 2px 8px rgb(0 0 0 / 12%);--shadow-2: 0 10px 30px rgb(0 0 0 / 22%), 0 2px 6px rgb(0 0 0 / 12%)}}:root[data-theme=dark]{color-scheme:dark;--color-bg: #242932;--color-surface-solid: #303843;--color-text: #f0f3f8;--color-text-muted: #b3becf;--color-border: #424c5c;--color-accent: #9cc5ff;--color-accent-soft: #273c58;--color-on-accent: #182b44;--color-danger: #ffb4b4;--color-danger-soft: #482e34;--color-danger-border: #79515a;--color-success: #b4d6c3;--color-success-soft: #2a3b35;--color-success-border: #506c5f;--color-warning: #efc090;--color-warning-soft: #413225;--color-warning-border: #796047;--color-surface-glass: rgb(39 49 63 / 58%);--color-surface-glass-dark: rgb(36 46 61 / 64%);--color-border-glass: rgb(189 207 229 / 24%);--color-border-glass-dark: rgb(189 207 229 / 20%);--glass-edge: rgb(0 0 0 / 35%);--glass-highlight: rgb(233 242 255 / 40%);--glass-lowlight: rgb(6 16 33 / 32%);--glass-sheen: rgb(255 255 255 / 9%);--glass-selection: rgb(166 190 224 / 16%);--glass-text-support: rgb(39 49 63 / 86%);--shadow-1: 0 2px 8px rgb(0 0 0 / 12%);--shadow-2: 0 10px 30px rgb(0 0 0 / 22%), 0 2px 6px rgb(0 0 0 / 12%)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:var(--font-sans);font-size:var(--text-base);line-height:1.55;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:var(--color-accent)}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button:disabled{cursor:not-allowed}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}@media(forced-colors:active){:root{--color-focus: Highlight}}::selection{background:var(--color-accent-soft);color:var(--color-text)}.icon{display:inline-block;flex:0 0 auto;vertical-align:middle}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}:root{--student-canvas: #f3f3f3;--student-card: #fff;--student-soft: #f3f3f3;--student-text: #111;--student-muted: #666;--student-border: #ddd;--student-divider: #eee;--student-disabled: #e4e5e6;--student-focus: #1764cf;--student-danger: #af3535;--student-error-surface: #ffe9e9;--student-error-ink: #7b2525;--student-warning: #8c4b08;--student-rating: #946413;--student-hover-card: #fff;--student-subtle-card: #f8f8f8;--student-info: #edf3f6;--student-selected: #eff8fe;--student-auth-glass: rgb(255 255 255 / 50%);--student-auth-muted: #30343a;--student-auth-border: rgb(255 255 255 / 55%);--student-auth-solid: rgb(255 255 255 / 95%);--student-color-scheme: light}:root[data-theme=dark]{--student-canvas: #141517;--student-card: #222427;--student-soft: #2d3034;--student-text: #f3f4f5;--student-muted: #b0b3b8;--student-border: #484c52;--student-divider: #363a40;--student-disabled: #373b40;--student-focus: #86cfff;--student-danger: #ffaaaa;--student-error-surface: #44272c;--student-error-ink: #ffc0c0;--student-warning: #f5bf82;--student-rating: #f1c46c;--student-hover-card: #2b2e32;--student-subtle-card: #1e2023;--student-info: #28343d;--student-selected: #243c4b;--student-auth-glass: rgb(25 28 33 / 78%);--student-auth-muted: #d1d5db;--student-auth-border: rgb(255 255 255 / 18%);--student-auth-solid: #222427;--student-color-scheme: dark}@media(prefers-color-scheme:dark){:root[data-theme=system]{--student-canvas: #141517;--student-card: #222427;--student-soft: #2d3034;--student-text: #f3f4f5;--student-muted: #b0b3b8;--student-border: #484c52;--student-divider: #363a40;--student-disabled: #373b40;--student-focus: #86cfff;--student-danger: #ffaaaa;--student-error-surface: #44272c;--student-error-ink: #ffc0c0;--student-warning: #f5bf82;--student-rating: #f1c46c;--student-hover-card: #2b2e32;--student-subtle-card: #1e2023;--student-info: #28343d;--student-selected: #243c4b;--student-auth-glass: rgb(25 28 33 / 78%);--student-auth-muted: #d1d5db;--student-auth-border: rgb(255 255 255 / 18%);--student-auth-solid: #222427;--student-color-scheme: dark}}body{margin:0;background:var(--student-canvas)}