.sgdt-theme{color-scheme:light;--sgdt-canvas:#efe7d2;--sgdt-canvas-subtle:#ece4cf;--sgdt-canvas-deep:#ddd2b6;--sgdt-surface:#f7f1de;--sgdt-surface-raised:#fef9f0;--sgdt-inverse-surface:#15140f;--sgdt-inverse-text:#f7f1de;--sgdt-inverse-border:#15140f;--sgdt-danger-text:#a53a2c;--sgdt-text:#15140f;--sgdt-text-secondary:#2a2620;--sgdt-text-muted:#5a5448;--sgdt-text-faint:#8b8676;--sgdt-border:rgba(21,20,15,0.16);--sgdt-border-strong:rgba(21,20,15,0.32);--sgdt-action-fill:#a53a2c;--sgdt-action-fill-hover:#853025;--sgdt-action-text:#a53a2c;--sgdt-on-action:#ffffff;--sgdt-accent-soft:#f08e7c;--sgdt-olive:#6e7448;--sgdt-mustard:#e9b94a;--sgdt-test-btt-text:var(--sgdt-action-text);--sgdt-test-btt-surface:color-mix(in srgb,var(--sgdt-action-fill) 10%,var(--sgdt-surface));--sgdt-test-ftt-text:#5c6238;--sgdt-test-ftt-surface:color-mix(in srgb,var(--sgdt-olive) 10%,var(--sgdt-surface));--sgdt-test-rtt-text:#795600;--sgdt-test-rtt-surface:color-mix(in srgb,var(--sgdt-mustard) 10%,var(--sgdt-surface));--sgdt-success:#2f7d46;--sgdt-success-text:#246238;--sgdt-success-soft:#e4f1e7;--sgdt-danger:#a53a2c;--sgdt-answer-correct-surface:color-mix(in srgb,var(--sgdt-success) 8%,var(--sgdt-surface));--sgdt-answer-incorrect-surface:color-mix(in srgb,var(--sgdt-danger) 8%,var(--sgdt-surface));--sgdt-answer-selected-surface:color-mix(in srgb,var(--sgdt-action-fill) 8%,var(--sgdt-surface));--sgdt-answer-key-surface:color-mix(in srgb,var(--sgdt-text) 10%,var(--sgdt-surface));--sgdt-explanation-surface:color-mix(in srgb,var(--sgdt-text) 4%,var(--sgdt-surface));--sgdt-focus:#6d2b20;--sgdt-disabled:#c3baa5;--sgdt-font-ui:var(--font-inter-tight),"Inter Tight","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--sgdt-font-reading:var(--font-inter),Inter,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--sgdt-space-1:0.25rem;--sgdt-space-2:0.5rem;--sgdt-space-3:0.75rem;--sgdt-space-4:1rem;--sgdt-space-6:1.5rem;--sgdt-space-8:2rem;--sgdt-space-10:2.5rem;--sgdt-space-12:3rem;--sgdt-radius-control:0.75rem;--sgdt-radius-nested:1rem;--sgdt-radius-card:1.5rem;--sgdt-radius-panel:2rem;--sgdt-shadow-card:20px 20px 40px -20px rgba(21,20,15,0.12);--sgdt-shadow-soft:10px 10px 20px -10px rgba(21,20,15,0.1);--sgdt-motion-fast:160ms;--sgdt-motion-standard:200ms;background:var(--sgdt-canvas);color:var(--sgdt-text);font-family:var(--sgdt-font-ui)}html[data-sgdt-color-mode=dark] .sgdt-theme,html[data-sgdt-color-mode=dark].sgdt-theme{color-scheme:dark;--sgdt-canvas:#191c1d;--sgdt-canvas-subtle:#222527;--sgdt-canvas-deep:#15140f;--sgdt-surface:#2a2620;--sgdt-surface-raised:#2e3132;--sgdt-text:#f0f1f2;--sgdt-text-secondary:#d9dadb;--sgdt-text-muted:#c0bbae;--sgdt-text-faint:#8b8676;--sgdt-border:rgba(255,255,255,0.16);--sgdt-border-strong:rgba(255,255,255,0.5);--sgdt-action-text:#f08e7c;--sgdt-danger-text:#f08e7c;--sgdt-focus:#f08e7c;--sgdt-olive:#bbc48a;--sgdt-test-ftt-text:#bbc48a;--sgdt-test-rtt-text:var(--sgdt-mustard);--sgdt-success-text:#9bd6a9;--sgdt-success-soft:#263b2d;--sgdt-disabled:#625e55;--sgdt-inverse-surface:#15140f;--sgdt-inverse-text:#f0f1f2;--sgdt-inverse-border:rgba(255,255,255,0.32);--sgdt-shadow-card:20px 20px 40px -20px rgba(0,0,0,0.35);--sgdt-shadow-soft:10px 10px 20px -10px rgba(0,0,0,0.25);--sgdt-answer-correct-surface:color-mix(in srgb,var(--sgdt-success) 16%,var(--sgdt-surface));--sgdt-answer-incorrect-surface:color-mix(in srgb,var(--sgdt-danger) 16%,var(--sgdt-surface))}.sgdt-theme .sgdt-button{align-items:center;border:1px solid transparent;border-radius:var(--sgdt-radius-control);cursor:pointer;display:inline-flex;font-family:var(--sgdt-font-ui);font-size:1rem;font-weight:700;gap:var(--sgdt-space-2);justify-content:center;line-height:1.25;min-height:3rem;padding:.625rem 1rem;text-align:center;text-decoration:none;transition:background-color var(--sgdt-motion-fast) ease,border-color var(--sgdt-motion-fast) ease,box-shadow var(--sgdt-motion-fast) ease,color var(--sgdt-motion-fast) ease}.sgdt-theme .sgdt-button:focus-visible,.sgdt-theme .sgdt-dialog-close:focus-visible,.sgdt-theme .sgdt-input:focus-visible{outline:3px solid var(--sgdt-focus);outline-offset:3px}.sgdt-theme .sgdt-button:hover:not(:disabled){text-decoration:none}.sgdt-theme .sgdt-button:disabled{cursor:not-allowed;opacity:.58}.sgdt-theme .sgdt-button--primary{background:var(--sgdt-action-fill);color:var(--sgdt-on-action)}.sgdt-theme .sgdt-button--primary:hover:not(:disabled){background:var(--sgdt-action-fill-hover)}.sgdt-theme .sgdt-button--secondary{background:var(--sgdt-surface-raised);border-color:var(--sgdt-border-strong);color:var(--sgdt-text)}.sgdt-theme .sgdt-button--secondary:hover:not(:disabled){background:var(--sgdt-surface)}.sgdt-theme .sgdt-button--quiet{background:transparent;color:var(--sgdt-action-text)}.sgdt-theme .sgdt-button--quiet:hover:not(:disabled){background:var(--sgdt-surface)}.sgdt-theme .sgdt-button--destructive{background:var(--sgdt-danger);color:var(--sgdt-on-action)}.sgdt-theme .sgdt-button__spinner{animation:sgdt-spin .8s linear infinite;border:2px solid;border-right:2px solid transparent;border-radius:50%;height:1rem;width:1rem}@keyframes sgdt-spin{to{transform:rotate(1turn)}}.sgdt-theme .sgdt-card{background:var(--sgdt-surface);border:1px solid var(--sgdt-border);border-radius:var(--sgdt-radius-card);box-shadow:var(--sgdt-shadow-card);padding:var(--sgdt-space-6)}.sgdt-theme .sgdt-card--raised{background:var(--sgdt-surface-raised)}.sgdt-theme .sgdt-field{display:grid;gap:var(--sgdt-space-2)}.sgdt-theme .sgdt-field__label{color:var(--sgdt-text-secondary);font-size:.875rem;font-weight:700;line-height:1.4}.sgdt-theme .sgdt-input{background:var(--sgdt-surface-raised);border:1px solid var(--sgdt-border-strong);border-radius:var(--sgdt-radius-control);color:var(--sgdt-text);font:inherit;min-height:2.75rem;padding:.625rem .75rem;width:100%}.sgdt-theme .sgdt-input::placeholder{color:var(--sgdt-text-muted);opacity:1}.sgdt-theme .sgdt-field__error,.sgdt-theme .sgdt-field__help{font-size:.875rem;line-height:1.45}.sgdt-theme .sgdt-field__help{color:var(--sgdt-text-muted)}.sgdt-theme .sgdt-field__error{color:var(--sgdt-danger-text)}.sgdt-theme .sgdt-input[aria-invalid=true]{border-color:var(--sgdt-danger-text)}.sgdt-theme .sgdt-badge{align-items:center;background:var(--sgdt-canvas-deep);border:1px solid var(--sgdt-border);border-radius:999px;color:var(--sgdt-text-muted);display:inline-flex;font-size:.875rem;font-weight:700;line-height:1.25;padding:.3125rem .625rem}.sgdt-theme .sgdt-test-badge--btt{background:var(--sgdt-test-btt-surface);color:var(--sgdt-test-btt-text);border-color:currentColor}.sgdt-theme .sgdt-test-badge--ftt{background:var(--sgdt-test-ftt-surface);color:var(--sgdt-test-ftt-text);border-color:currentColor}.sgdt-theme .sgdt-test-badge--rtt{background:var(--sgdt-test-rtt-surface);color:var(--sgdt-test-rtt-text);border-color:currentColor}.sgdt-theme .sgdt-status{border:1px solid var(--sgdt-border);border-radius:var(--sgdt-radius-nested);color:var(--sgdt-text-secondary);display:grid;gap:var(--sgdt-space-1);padding:var(--sgdt-space-3) var(--sgdt-space-4)}.sgdt-theme .sgdt-status--success{border-inline-start:.25rem solid var(--sgdt-success-text)}.sgdt-theme .sgdt-status--error{border-inline-start:.25rem solid var(--sgdt-danger-text)}.sgdt-theme .sgdt-status__title{font-weight:700}.sgdt-theme .sgdt-status--success .sgdt-status__title{color:var(--sgdt-success-text)}.sgdt-theme .sgdt-status--error .sgdt-status__title{color:var(--sgdt-danger-text)}.sgdt-theme .sgdt-status__description{color:var(--sgdt-text-muted)}.sgdt-theme .sgdt-dialog-backdrop{align-items:center;background:rgba(21,20,15,.48);display:flex;height:100dvh;inset:0;justify-content:center;max-width:100vw;padding:var(--sgdt-space-4);position:fixed;z-index:100}.sgdt-theme .sgdt-dialog{background:var(--sgdt-surface-raised);border:1px solid var(--sgdt-border);border-radius:var(--sgdt-radius-panel);box-shadow:var(--sgdt-shadow-card);color:var(--sgdt-text);max-height:min(42rem,calc(100vh - 2rem));max-width:34rem;overflow:auto;padding:var(--sgdt-space-6);width:100%}.sgdt-theme .sgdt-dialog__header{align-items:start;display:flex;gap:var(--sgdt-space-4);justify-content:space-between}.sgdt-theme .sgdt-dialog__title{font-size:1.5rem;line-height:1.25;margin:0}.sgdt-theme .sgdt-dialog__description{color:var(--sgdt-text-muted);line-height:1.55;margin:var(--sgdt-space-3) 0 0}.sgdt-theme .sgdt-dialog__content{margin-top:var(--sgdt-space-6)}.sgdt-theme .sgdt-dialog-close{background:transparent;border:0;border-radius:var(--sgdt-radius-control);color:var(--sgdt-text-secondary);cursor:pointer;font:inherit;font-size:1.5rem;line-height:1;min-height:2.75rem;min-width:2.75rem}.sgdt-theme .sgdt-dialog-close:hover{background:var(--sgdt-canvas-subtle)}html[data-sgdt-color-mode=dark] .sgdt-theme :is(.sgdt-button--primary,.sgdt-button--destructive){border-color:var(--sgdt-action-text)}@media (prefers-reduced-motion:reduce){.sgdt-theme .sgdt-button,.sgdt-theme .sgdt-dialog-close,.sgdt-theme .sgdt-input{transition-duration:.01ms}.sgdt-theme .sgdt-button__spinner{animation-duration:.01ms;animation-iteration-count:1}}