@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap";:root{--qb-primary-student:#2f54eb;--qb-primary-teacher:#08979c;--qb-primary-admin:#1d39c4;--qb-primary-soft-bg:color-mix(in srgb, var(--el-color-primary) 8%, var(--qb-bg-card) 92%);--qb-primary-soft-border:color-mix(in srgb, var(--el-color-primary) 18%, var(--qb-bg-card) 82%);--qb-success:#52c41a;--qb-warning:#faad14;--qb-danger:#ff4d4f;--qb-info:#1890ff;--qb-danger-strong:#ef4444;--qb-danger-accent:#d03050;--qb-danger-soft-bg:#fff1f2;--qb-danger-soft-border:#fecaca;--qb-warning-soft-bg:#fff9eb;--qb-success-soft-bg:#ecfdf3;--qb-branch-color-1:#f59e0b;--qb-branch-color-2:#14b8a6;--qb-branch-color-3:#3b82f6;--qb-branch-color-4:#f97316;--qb-branch-color-5:#10b981;--qb-branch-color-6:#8b5cf6;--qb-bg-body:#f7f9fb;--qb-bg-card:#fff;--qb-text-main:#262626;--qb-text-regular:#595959;--qb-border-color:#f0f0f0;--qb-text-heading:#0f172a;--qb-primary-50:#eff6ff;--qb-primary-100:#dbeafe;--qb-primary-25:#f8fbff;--qb-primary-200:#bfdbfe;--qb-primary-400:#60a5fa;--qb-primary-600:#2563eb;--qb-success-600:#0f9f6e;--qb-success-500:#22c55e;--qb-warning-600:#d97706;--qb-danger-600:#dc2626;--qb-danger-400:#f87171;--qb-text-emphasis:#1e293b;--qb-text-strong:#1f2937;--qb-text-secondary-strong:#334155;--qb-text-secondary:#475569;--qb-text-subtle-1:#4b5563;--qb-text-subtle-2:#4b5d74;--qb-text-subtle-3:#556176;--qb-text-subtle-4:#5a6981;--qb-text-subtle-5:#5b6472;--qb-text-subtle-6:#5c6372;--qb-text-subtle-7:#5d6d84;--qb-text-subtle-8:#5f6f86;--qb-text-subtle-9:#64748b;--qb-bg-muted:#f2f4f6;--qb-bg-subtle:#eceef0;--qb-border-muted:#e0e3e5;--qb-border-subtle:#e6e8ea;--qb-space-0:0;--qb-space-1:4px;--qb-space-2:8px;--qb-space-2-5:10px;--qb-space-3:12px;--qb-space-3-5:14px;--qb-space-4:16px;--qb-space-4-5:18px;--qb-space-5:20px;--qb-space-5-5:22px;--qb-space-6:24px;--qb-space-7:28px;--qb-space-8:32px;--qb-space-9:36px;--qb-space-10:40px;--qb-radius-sm:12px;--qb-radius-md:16px;--qb-radius-lg:18px;--qb-radius-xl:20px;--qb-radius-2xl:24px;--qb-radius-3xl:28px;--qb-radius-pill:999px;--qb-radius-round:50%;--qb-surface-strong:#fffffffa;--qb-surface-solid:#fffffff5;--qb-surface-raised:#ffffffeb;--qb-surface-glass:#ffffffe0;--qb-surface-glass-soft:#ffffffd1;--qb-surface-frosted:#ffffffc7;--qb-surface-shell:#f7f9fbeb;--qb-surface-spotlight:#ffffffd6;--qb-surface-soft-primary:color-mix(in srgb, var(--qb-primary-student) 8%, white 92%);--qb-surface-soft-info:color-mix(in srgb, var(--qb-info) 10%, white 90%);--qb-surface-soft-success:color-mix(in srgb, var(--qb-success) 10%, white 90%);--qb-surface-soft-warning:color-mix(in srgb, var(--qb-warning) 12%, white 88%);--qb-surface-soft-danger:color-mix(in srgb, var(--qb-danger) 10%, white 90%);--qb-surface-soft-neutral:#f5f7faf5;--qb-border-ghost:#94a3b824;--qb-border-soft:#94a3b829;--qb-border-glass:#94a3b82e;--qb-border-strong:#94a3b838;--qb-border-primary-soft:color-mix(in srgb, var(--qb-primary-student) 12%, white 88%);--qb-border-primary-strong:color-mix(in srgb, var(--qb-primary-student) 22%, white 78%);--qb-border-success-soft:color-mix(in srgb, var(--qb-success) 18%, white 82%);--qb-border-warning-soft:color-mix(in srgb, var(--qb-warning) 22%, white 78%);--qb-border-danger-soft:color-mix(in srgb, var(--qb-danger) 20%, white 80%);--qb-track-soft:#94a3b82e;--qb-track-neutral:#cbd5e152;--qb-track-strong:#94a3b859;--qb-shadow-soft:0 8px 20px #0f172a0a;--qb-shadow-panel:0 12px 28px #0f172a0f;--qb-shadow-float:0 16px 34px #0f172a0d;--qb-shadow-accent:0 12px 28px #2f54eb1a;--qb-shadow-accent-strong:0 18px 34px #11357024;--qb-shadow-danger:0 12px 24px #ef44441f;--qb-shadow-danger-strong:0 18px 30px #dc26263d;--qb-shadow-brand:0 8px 20px #2f54eb47;--qb-shadow-modal:0 12px 30px #0f172a29;--qb-text-copy:#526075;--qb-text-meta:#64748b;--qb-text-muted:#8c8c8c;--qb-text-inverse:#fff;--qb-text-brand-soft:#e4ebffb3;--qb-text-brand-nav:#e6ecffc7;--qb-text-neutral-ink:#6b7280;--qb-text-info-ink:#1d4ed8;--qb-text-warning-ink:#b45309;--qb-text-warning-strong:#8f6410;--qb-text-success-ink:#15803d;--qb-text-success-strong:#1c6a43;--qb-text-danger-strong:#8f3128;--qb-chart-neutral:#c8d0db;--qb-chart-risk:#c86454;--qb-chart-mid:#d7a63c;--qb-chart-good:#4a9d67;--qb-chart-mid-soft:color-mix(in srgb, var(--qb-chart-mid) 16%, white 84%);--qb-chart-mid-shadow:#f59e0b2e;--qb-gradient-sidebar:linear-gradient(180deg, #122143fa, #19305ff5);--qb-gradient-brand:linear-gradient(135deg, #2f54eb, #597ef7eb);--qb-gradient-nav-active:linear-gradient(90deg, #2f54ebf5, #5879e1b8);--qb-gradient-primary-hero:linear-gradient(135deg, var(--qb-primary-50) 0%, var(--qb-primary-100) 52%, var(--qb-primary-25) 100%);--qb-gradient-primary-panel:linear-gradient(145deg, #eff6ffeb, #f8fafcfa);--qb-gradient-primary-card:linear-gradient(180deg, #fffffff5, #f6f8fcfa);--qb-gradient-primary-card-strong:linear-gradient(180deg, #fffffffa, #eaf2ffeb);--qb-gradient-info-card:linear-gradient(145deg, #fffffffa, #f0f9fff5);--qb-gradient-success-card:linear-gradient(145deg, #fffffffa, #f0fdfaeb);--qb-gradient-warning-card:linear-gradient(145deg, #fffffffa, #fffbebf5);--qb-gradient-danger-card:linear-gradient(145deg, #fffffffa, #fef2f2f5);--qb-gradient-primary-fill:linear-gradient(90deg, var(--qb-primary-400), var(--qb-primary-600));--qb-gradient-subject-fill:linear-gradient(90deg, var(--qb-primary-student), color-mix(in srgb, var(--qb-primary-student) 62%, white 38%));--qb-gradient-success-fill:linear-gradient(135deg, var(--qb-success-600), var(--qb-success-500));--qb-gradient-warning-fill:linear-gradient(135deg, var(--qb-warning-600), var(--qb-branch-color-1));--qb-gradient-danger-fill:linear-gradient(135deg, var(--qb-danger-600), var(--qb-danger-strong));--qb-subject-politics:var(--qb-branch-color-1);--qb-subject-english:var(--qb-branch-color-5);--qb-subject-math:var(--qb-branch-color-3);--qb-subject-chinese:var(--qb-danger-strong);--qb-subject-computer:var(--qb-branch-color-6);--qb-subject-fallback-1:var(--qb-primary-600);--qb-subject-fallback-2:#0f766e;--qb-subject-fallback-3:var(--qb-danger-600);--qb-subject-fallback-4:#9333ea;--qb-subject-fallback-5:#ea580c;--qb-subject-fallback-6:#0891b2;--qb-tooltip-bg:#0a1228e0;--qb-overlay-scrim:#0f172a33;--qb-surface-overlay-card:#fffffff2;--qb-surface-brand-hover:#ffffff14;--qb-surface-ink-soft:#0f172a0f;--qb-border-inverse-soft:#ffffff1a;--qb-link-prerequisite:#3b82f675;--qb-link-default:#94a3b83d;--qb-focus-outline:#f59e0b8c;--qb-focus-ring:#f59e0b61;--qb-focus-ring-fade:#f59e0b00;--qb-radius-base:8px;--qb-spacing-unit:4px;--qb-header-height:64px;--qb-sidebar-width:240px;--qb-shadow-card:0 1px 4px #00152914;--qb-student-card-radius:24px;--qb-student-card-radius-strong:28px;--qb-student-card-border:1px solid #e0e3e5eb;--qb-student-card-shadow:0 10px 28px #0f172a0d;--qb-student-card-shadow-strong:0 22px 54px #0f172a14;--qb-student-kicker-bg:var(--qb-surface-soft-primary);--qb-student-kicker-text:var(--qb-primary-student);--font-display:"Manrope", "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;--font-body:"Inter", "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;--font-mono:"JetBrains Mono", "SFMono-Regular", "Consolas", monospace;--text-main:var(--qb-text-heading);--text-sub:var(--qb-text-secondary-strong);--surface:var(--qb-bg-muted);--surface-alt:var(--qb-primary-soft-bg);--line:var(--qb-border-strong)}.theme-student{--el-color-primary:var(--qb-primary-student)}.theme-teacher{--el-color-primary:var(--qb-primary-teacher)}.theme-super_admin{--el-color-primary:var(--qb-primary-admin)}.qb-text-main{color:var(--qb-text-main)}.card-item{background:var(--qb-bg-card);border-radius:var(--qb-radius-2xl);padding:calc(var(--qb-spacing-unit) * 4);box-shadow:var(--qb-shadow-panel)}.el-card,.el-card.is-always-shadow,.el-card.is-hover-shadow:hover,.el-card.is-hover-shadow:focus{border-radius:var(--qb-radius-2xl)!important;box-shadow:var(--qb-shadow-panel)!important;border-color:var(--qb-border-muted)!important}.el-card :is(.el-card__header,.el-card__body){padding-left:20px!important;padding-right:20px!important}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{font-family:var(--font-body);color:var(--text-main);letter-spacing:.01em;background:var(--qb-bg-body);line-height:1.7}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);letter-spacing:-.02em}code{font-family:var(--font-mono);color:var(--text-sub)}button,input,textarea,select{font-family:var(--font-body)}p,.el-card__body,.el-card__header,.el-table .cell,.el-form-item__content,.el-dialog__body,.el-drawer__body{letter-spacing:.01em;line-height:1.7}#nprogress .bar{background:linear-gradient(90deg, var(--el-color-primary) 0%, var(--el-color-primary) 100%);height:3px}#nprogress .peg{box-shadow:0 0 10px color-mix(in srgb, var(--qb-info) 65%, transparent), 0 0 5px color-mix(in srgb, var(--qb-success) 45%, transparent)}.qb-validation-highlight{outline:2px solid var(--qb-focus-outline);outline-offset:1px;animation:.6s ease-in-out 3 qbValidationPulse}@keyframes qbValidationPulse{0%{box-shadow:0 0 0 0 var(--qb-focus-ring)}to{box-shadow:0 0 0 7px var(--qb-focus-ring-fade)}}:root{--zsb-color-primary:#2f54eb;--zsb-color-primary-light:#f0f5ff;--zsb-color-primary-hover:#597ef7;--zsb-color-success:#52c41a;--zsb-color-warning:#faad14;--zsb-color-error:#f5222d;--zsb-color-info:#8c8c8c;--zsb-bg-main:#f0f2f5;--zsb-bg-card:#fff;--zsb-text-main:#262626;--zsb-text-secondary:#595959;--zsb-border-color:#d9d9d9;--zsb-border-soft:#dbe5f3;--zsb-radius:8px;--zsb-shadow:0 1px 4px #00152914;--zsb-shadow-hover:0 2px 8px #0015291a;--zsb-l1-bg:#1d39c4;--zsb-l3-bg:#2f54eb;--zsb-l5-bg:#adc6ff;--font-body:"HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;--qb-font-body:var(--font-body);--qb-primary-student:var(--zsb-color-primary);--qb-primary-teacher:var(--zsb-color-primary);--qb-primary-admin:var(--zsb-l1-bg);--qb-primary-soft-bg:var(--zsb-color-primary-light);--qb-primary-soft-border:color-mix(in srgb, var(--zsb-color-primary) 18%, var(--zsb-bg-card) 82%);--qb-success:var(--zsb-color-success);--qb-warning:var(--zsb-color-warning);--qb-danger:var(--zsb-color-error);--qb-info:var(--zsb-color-info);--qb-bg-body:var(--zsb-bg-main);--qb-bg-card:var(--zsb-bg-card);--qb-text-main:var(--zsb-text-main);--qb-text-regular:var(--zsb-text-secondary);--qb-border-color:var(--zsb-border-color);--qb-text-heading:#0f172a;--qb-text-emphasis:#162033;--qb-text-strong:#1f2937;--qb-text-secondary-strong:#334155;--qb-text-secondary:var(--zsb-text-secondary);--qb-text-subtle-1:#314156;--qb-text-subtle-2:#455468;--qb-text-subtle-3:#4b5b70;--qb-text-subtle-4:#516076;--qb-text-subtle-5:#58667d;--qb-text-subtle-6:#607089;--qb-text-subtle-7:#697a92;--qb-text-subtle-8:#73839a;--qb-text-subtle-9:#7d8ba3;--qb-bg-muted:#f6f8fc;--qb-bg-subtle:#fbfcff;--qb-border-muted:color-mix(in srgb, var(--zsb-border-color) 72%, white 28%);--qb-border-subtle:var(--zsb-border-soft);--qb-radius-base:var(--zsb-radius);--qb-spacing-unit:4px;--qb-header-height:72px;--qb-sidebar-width:248px;--qb-shadow-card:var(--zsb-shadow);--surface:var(--zsb-bg-main);--surface-alt:color-mix(in srgb, var(--zsb-color-primary-light) 62%, white 38%);--text-main:var(--zsb-text-main);--text-sub:var(--zsb-text-secondary);--line:color-mix(in srgb, var(--zsb-border-color) 78%, white 22%);--el-color-primary:var(--zsb-color-primary);--el-color-primary-light-3:color-mix(in srgb, var(--zsb-color-primary) 70%, white 30%);--el-color-primary-light-5:color-mix(in srgb, var(--zsb-color-primary) 50%, white 50%);--el-color-primary-light-7:color-mix(in srgb, var(--zsb-color-primary) 30%, white 70%);--el-color-primary-light-8:color-mix(in srgb, var(--zsb-color-primary) 20%, white 80%);--el-color-primary-light-9:var(--zsb-color-primary-light);--el-color-primary-dark-2:color-mix(in srgb, var(--zsb-color-primary) 84%, black 16%);--el-border-radius-base:var(--zsb-radius);--el-border-radius-small:var(--zsb-radius);--el-border-radius-round:999px;--el-fill-color-blank:var(--zsb-bg-card);--el-bg-color:var(--zsb-bg-card);--el-bg-color-page:var(--zsb-bg-main);--el-text-color-primary:var(--zsb-text-main);--el-text-color-regular:var(--zsb-text-secondary);--el-border-color:var(--zsb-border-color);--el-border-color-light:color-mix(in srgb, var(--zsb-border-color) 72%, white 28%);--el-border-color-lighter:color-mix(in srgb, var(--zsb-border-color) 48%, white 52%);--el-box-shadow-light:var(--zsb-shadow)}body{font-family:var(--font-body);color:var(--zsb-text-main);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;letter-spacing:.02em;background:var(--zsb-bg-main);line-height:1.8}.theme-student,.theme-teacher,.theme-super_admin{--el-color-primary:var(--zsb-color-primary)}.el-button--primary{--el-button-bg-color:var(--zsb-color-primary);--el-button-border-color:var(--zsb-color-primary);--el-button-hover-bg-color:var(--zsb-color-primary-hover);--el-button-hover-border-color:var(--zsb-color-primary-hover);--el-button-active-bg-color:var(--zsb-l1-bg);--el-button-active-border-color:var(--zsb-l1-bg);--el-button-text-color:#fff;box-shadow:var(--zsb-shadow)}.el-card,.el-card.is-always-shadow,.el-card.is-hover-shadow:hover,.el-card.is-hover-shadow:focus{border-radius:var(--zsb-radius)!important;box-shadow:var(--zsb-shadow)!important;border:none!important}.el-card{--el-card-padding:24px}.el-card :is(h3,h4,h5,.card-title,.panel-title,.section-title){color:var(--qb-text-main);font-size:18px;font-weight:600}.el-card :is(small,.helper-text,.meta-text,.aux-text,.stat-label,.hint-text){color:var(--qb-text-regular);font-size:12px}.el-card+.el-card{margin-top:20px}.el-card__body{padding:24px}.el-card__header{border-bottom:none;padding:24px 24px 0}.el-container,.el-main,.el-header,.el-aside,.el-table,.el-table tr,.el-table th.el-table__cell,.el-table td.el-table__cell{background-color:#0000}.el-table{--el-table-border-color:var(--qb-border-subtle);--el-table-header-bg-color:color-mix(in srgb, var(--qb-primary-soft-bg) 48%, white 52%);--el-table-row-hover-bg-color:color-mix(in srgb, var(--qb-primary-soft-bg) 64%, white 36%);border-radius:var(--qb-radius-base);overflow:hidden}.el-menu{--el-menu-base-level-padding:18px;--el-menu-item-height:46px;--el-menu-sub-item-height:42px;border-inline-end:none!important}.el-menu-item,.el-sub-menu__title{border-radius:var(--qb-radius-base);margin-block:4px}.el-menu--collapse .el-menu-item,.el-menu--collapse .el-sub-menu__title{justify-content:center}.el-breadcrumb{line-height:1.2}.el-breadcrumb__inner,.el-breadcrumb__inner a{color:var(--qb-text-secondary);font-weight:500}.el-breadcrumb__separator{color:var(--qb-text-subtle-8)}.el-tag,.el-input__wrapper,.el-select__wrapper,.el-textarea__inner{border-radius:var(--qb-radius-base)}.question-body{letter-spacing:.02em;font-size:15px;line-height:1.7}.feedback-toast-stack[data-v-892ce1a7]{z-index:3200;pointer-events:none;gap:12px;width:min(460px,100vw - 24px);display:grid;position:fixed;top:20px;left:50%;transform:translate(-50%)}.feedback-toast[data-v-892ce1a7]{border:1px solid var(--qb-border-glass);background:var(--qb-gradient-primary-card);min-height:58px;box-shadow:var(--qb-shadow-modal);pointer-events:auto;--feedback-toast-accent:var(--qb-primary-600);border-radius:18px;grid-template-columns:6px 1fr auto;align-items:stretch;display:grid;overflow:hidden}.feedback-toast__accent[data-v-892ce1a7]{background:var(--feedback-toast-accent)}.feedback-toast--success[data-v-892ce1a7]{--feedback-toast-accent:var(--qb-success-500)}.feedback-toast--warning[data-v-892ce1a7]{--feedback-toast-accent:var(--qb-warning-600)}.feedback-toast--error[data-v-892ce1a7]{--feedback-toast-accent:var(--qb-danger-600)}.feedback-toast__body[data-v-892ce1a7]{align-items:center;padding:14px 16px;display:flex}.feedback-toast__message[data-v-892ce1a7]{color:var(--qb-text-heading);white-space:pre-line;margin:0;font-size:14px;line-height:1.5}.feedback-toast__close[data-v-892ce1a7]{color:var(--qb-text-subtle-9);cursor:pointer;background:0 0;border:0;padding:0 16px;font-size:12px}.feedback-dialog__overlay[data-v-892ce1a7]{z-index:3300;background:color-mix(in srgb, var(--qb-overlay-scrim) 100%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.feedback-dialog[data-v-892ce1a7]{border:1px solid var(--qb-border-glass);background:var(--qb-gradient-info-card);width:min(480px,100%);box-shadow:var(--qb-shadow-panel);border-radius:28px;padding:24px}.feedback-dialog--warning[data-v-892ce1a7]{background:var(--qb-gradient-warning-card)}.feedback-dialog--error[data-v-892ce1a7]{background:var(--qb-gradient-danger-card)}.feedback-dialog--success[data-v-892ce1a7]{background:var(--qb-gradient-success-card)}.feedback-dialog__header[data-v-892ce1a7]{margin-bottom:12px}.feedback-dialog__eyebrow[data-v-892ce1a7]{color:var(--qb-text-subtle-9);letter-spacing:.08em;margin:0 0 6px;font-size:12px}.feedback-dialog__title[data-v-892ce1a7]{color:var(--qb-text-heading);margin:0;font-size:22px;line-height:1.2}.feedback-dialog__message[data-v-892ce1a7]{color:var(--qb-text-secondary-strong);white-space:pre-line;margin:0;font-size:14px;line-height:1.7}.feedback-dialog__input-wrap[data-v-892ce1a7]{margin-top:16px}.feedback-dialog__input[data-v-892ce1a7]{border:1px solid var(--qb-border-strong);background:var(--qb-surface-strong);width:100%;color:var(--qb-text-heading);border-radius:16px;outline:none;padding:12px 14px;font-size:14px}.feedback-dialog__input[data-v-892ce1a7]:focus{border-color:var(--qb-primary-600);box-shadow:0 0 0 4px color-mix(in srgb, var(--qb-primary-600) 14%, transparent)}.feedback-dialog__error[data-v-892ce1a7]{color:var(--qb-danger-600);margin:8px 0 0;font-size:12px}.feedback-dialog__footer[data-v-892ce1a7]{justify-content:flex-end;gap:12px;margin-top:22px;display:flex}.feedback-dialog__button[data-v-892ce1a7]{cursor:pointer;border-radius:999px;padding:10px 18px;font-size:14px}.feedback-dialog__button--ghost[data-v-892ce1a7]{border:1px solid var(--qb-border-strong);background:var(--qb-surface-glass);color:var(--qb-text-secondary-strong)}.feedback-dialog__button--solid[data-v-892ce1a7]{background:var(--qb-text-heading);color:var(--qb-text-inverse);border:1px solid #0000}.feedback-toast-enter-active[data-v-892ce1a7],.feedback-toast-leave-active[data-v-892ce1a7],.feedback-dialog-enter-active[data-v-892ce1a7],.feedback-dialog-leave-active[data-v-892ce1a7]{transition:all .2s}.feedback-toast-enter-from[data-v-892ce1a7],.feedback-toast-leave-to[data-v-892ce1a7]{opacity:0;transform:translateY(-10px)}.feedback-dialog-enter-from[data-v-892ce1a7],.feedback-dialog-leave-to[data-v-892ce1a7]{opacity:0}.feedback-dialog-enter-from .feedback-dialog[data-v-892ce1a7],.feedback-dialog-leave-to .feedback-dialog[data-v-892ce1a7]{transform:translateY(12px)scale(.98)}@media (width<=640px){.feedback-toast-stack[data-v-892ce1a7]{width:calc(100vw - 20px);top:14px}.feedback-dialog[data-v-892ce1a7]{border-radius:22px;padding:20px}.feedback-dialog__footer[data-v-892ce1a7]{flex-direction:column-reverse}.feedback-dialog__button[data-v-892ce1a7]{width:100%}}