.sidebar-head[data-v-35bbdea2]{border-bottom:1px solid var(--line);flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;display:flex}.sidebar-head .brand[data-v-35bbdea2]{border-bottom:0;flex:1;min-width:0}.mobile-menu-close[data-v-35bbdea2]{display:none}.topbar-leading[data-v-35bbdea2]{align-items:center;gap:12px;min-width:0;display:flex}.mobile-menu-toggle[data-v-35bbdea2]{display:none}.mobile-topbar-brand[data-v-35bbdea2]{letter-spacing:-.4px;color:var(--ink);align-items:center;gap:8px;font-size:15px;font-weight:750;display:none}.mobile-topbar-brand .brand-mark[data-v-35bbdea2]{border-radius:9px;width:30px;height:30px;box-shadow:0 2px #183d31}.mobile-current-page[data-v-35bbdea2]{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;display:none;overflow:hidden}.mobile-menu-backdrop[data-v-35bbdea2]{display:none}@media (width<=959px){.mobile-menu-toggle[data-v-35bbdea2],.mobile-menu-close[data-v-35bbdea2],.mobile-topbar-brand[data-v-35bbdea2]{display:inline-flex}.mobile-current-page[data-v-35bbdea2],.mobile-menu-backdrop[data-v-35bbdea2]{display:block}}@media (width<=479px){.mobile-topbar-brand[data-v-35bbdea2],.mobile-current-page[data-v-35bbdea2],.font-control[data-v-35bbdea2]{display:none}}.topbar-parent-pill[data-v-35bbdea2]{color:#166534;cursor:pointer;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:20px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;transition:all .15s;display:inline-flex}.topbar-parent-pill[data-v-35bbdea2]:hover{background:#dcfce7;border-color:#86efac;transform:translateY(-1px);box-shadow:0 2px 4px #16653414}.topbar-parent-pill svg[data-v-35bbdea2]{color:#16a34a}@media (width<=768px){.topbar-parent-pill[data-v-35bbdea2]{display:none}}.sidebar-nav-groups[data-v-35bbdea2]{flex-direction:column;gap:12px;margin-top:4px;display:flex}.nav-group-section[data-v-35bbdea2]{flex-direction:column;display:flex}.group-title-row[data-v-35bbdea2]{text-transform:uppercase;letter-spacing:.04em;color:#64748b;border-bottom:1px solid #e2e8f099;align-items:center;gap:6px;margin-bottom:3px;padding:4px 8px 5px;font-size:.72rem;font-weight:700;display:flex}.group-icon[data-v-35bbdea2]{color:#94a3b8}.group-items-stack[data-v-35bbdea2]{flex-direction:column;gap:2px;display:flex}.grouped-nav-item[data-v-35bbdea2]{color:#334155;border-radius:8px;align-items:center;gap:8px;min-height:38px;padding:7px 10px;font-size:.88rem;font-weight:500;text-decoration:none;transition:all .15s;display:flex;position:relative}.grouped-nav-item[data-v-35bbdea2]:hover{color:#0f172a;background:#f1f5f9}.grouped-nav-item.active[data-v-35bbdea2]{color:#1d4ed8;background:#eff6ff;font-weight:600}.nav-text[data-v-35bbdea2]{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.nav-dot[data-v-35bbdea2]{background:#2563eb;border-radius:50%;flex-shrink:0;width:5px;height:5px}@media print{.sidebar[data-v-35bbdea2],.topbar[data-v-35bbdea2],.page-footer[data-v-35bbdea2],.skip-link[data-v-35bbdea2],dialog[data-v-35bbdea2]{display:none!important}.app-shell[data-v-35bbdea2],.workspace[data-v-35bbdea2]{margin:0!important;padding:0!important;display:block!important}main#main[data-v-35bbdea2]{max-width:100%!important;margin:0!important;padding:0!important}}.today-tasks-container[data-v-f43a455d]{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:1rem;margin-bottom:1.5rem;padding:1.5rem;box-shadow:0 4px 12px #00000008}.tasks-header[data-v-f43a455d]{border-bottom:1px solid var(--border,#f1f5f9);justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.25rem;padding-bottom:1rem;display:flex}.greeting-badge[data-v-f43a455d]{color:#b45309;background:#fef3c7;border-radius:9999px;align-items:center;gap:.35rem;margin-bottom:.5rem;padding:.2rem .6rem;font-size:.8125rem;font-weight:600;display:inline-flex}.fire-icon[data-v-f43a455d]{color:#ea580c}.tasks-header h2[data-v-f43a455d]{color:var(--ink,#1e293b);margin:0 0 .25rem;font-size:1.3rem;font-weight:700}.subtitle[data-v-f43a455d]{color:var(--muted,#64748b);margin:0;font-size:.875rem}.stat-box[data-v-f43a455d]{background:#f8fafc;border:1px solid #e2e8f0;border-radius:.75rem;flex-direction:column;flex-shrink:0;align-items:center;padding:.5rem 1rem;display:flex}.stat-num[data-v-f43a455d]{color:#0f172a;font-size:1.2rem;font-weight:700}.stat-label[data-v-f43a455d]{color:#64748b;font-size:.72rem}.tasks-state[data-v-f43a455d]{text-align:center;color:var(--muted,#64748b);flex-direction:column;align-items:center;gap:.75rem;padding:1.5rem 1rem;display:flex}.tasks-state p[data-v-f43a455d]{margin:0;font-size:.9rem}.tasks-state .state-icon[data-v-f43a455d]{color:#94a3b8}.tasks-state.error .state-icon[data-v-f43a455d]{color:#d97706}.tasks-state.done .state-icon[data-v-f43a455d]{color:#16a34a}.tasks-list[data-v-f43a455d]{flex-direction:column;gap:.75rem;display:flex}.task-card[data-v-f43a455d]{cursor:pointer;background:#f8fafc;border:1px solid #e2e8f0;border-radius:.75rem;align-items:center;gap:1rem;padding:1rem 1.25rem;transition:all .2s;display:flex}.task-card[data-v-f43a455d]:hover{border-color:#cbd5e1;transform:translateY(-1px);box-shadow:0 4px 8px #0000000d}.task-card.review[data-v-f43a455d]{border-left:4px solid #f59e0b}.task-card.new_learn[data-v-f43a455d]{border-left:4px solid #3b82f6}.task-card.variant[data-v-f43a455d],.task-card.challenge[data-v-f43a455d]{border-left:4px solid #8b5cf6}.task-card.is_completed[data-v-f43a455d]{opacity:.7;background:#f1f5f9}.task-icon-wrapper[data-v-f43a455d]{background:#fff;border:1px solid #e2e8f0;border-radius:.5rem;flex-shrink:0;justify-content:center;align-items:center;width:2.5rem;height:2.5rem;display:flex}.icon-review[data-v-f43a455d]{color:#d97706}.icon-learn[data-v-f43a455d]{color:#2563eb}.icon-variant[data-v-f43a455d]{color:#7c3aed}.task-content[data-v-f43a455d]{flex:1;min-width:0}.task-badge-row[data-v-f43a455d]{align-items:center;gap:.5rem;margin-bottom:.25rem;display:flex}.task-badge[data-v-f43a455d]{border-radius:.25rem;padding:.15rem .45rem;font-size:.6875rem;font-weight:700}.task-badge.review[data-v-f43a455d]{color:#b45309;background:#fef3c7}.task-badge.learn[data-v-f43a455d]{color:#1d4ed8;background:#dbeafe}.task-badge.variant[data-v-f43a455d]{color:#6d28d9;background:#ede9fe}.subject-tag[data-v-f43a455d]{color:#64748b;font-size:.75rem}.task-title[data-v-f43a455d]{color:var(--ink,#1e293b);margin:0;font-size:1rem;font-weight:600}.done-label[data-v-f43a455d]{color:#16a34a;align-items:center;gap:.3rem;font-size:.875rem;font-weight:600;display:inline-flex}.action-btn[data-v-f43a455d]{align-items:center;gap:.35rem;padding:.4rem .85rem;font-size:.875rem;display:inline-flex}.plan-strip[data-v-f43a455d]{grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:1.25rem 0 0;padding:0;list-style:none;display:grid}.plan-strip li[data-v-f43a455d]{border:1px solid var(--border,#e8ece0);background:#fbfcf7;border-radius:.6rem;align-items:flex-start;gap:.5rem;padding:.6rem .7rem;display:flex}.plan-strip li.done[data-v-f43a455d]{background:#f1f6ea}.plan-dot[data-v-f43a455d]{color:#6b7f5c;background:#eef2e6;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:1.4rem;height:1.4rem;display:inline-flex}.plan-strip li.done .plan-dot[data-v-f43a455d]{color:#16a34a;background:#dcfce7}.plan-copy[data-v-f43a455d]{flex-direction:column;min-width:0;display:flex}.plan-copy strong[data-v-f43a455d]{color:var(--ink,#1e293b);font-size:.82rem}.plan-copy small[data-v-f43a455d]{color:var(--muted,#64748b);white-space:nowrap;text-overflow:ellipsis;font-size:.72rem;overflow:hidden}.mastery-footer[data-v-f43a455d]{border-top:1px solid var(--border,#f1f5f9);margin-top:1.5rem;padding-top:1rem}.mastery-summary-row[data-v-f43a455d]{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;margin-bottom:.5rem;font-size:.875rem;display:flex}.mastery-label[data-v-f43a455d]{color:#334155;align-items:center;gap:.4rem;font-weight:600;display:flex}.mastery-counts[data-v-f43a455d]{gap:.5rem;font-size:.75rem;display:flex}.tag-mastered[data-v-f43a455d]{color:#15803d;background:#dcfce7;border-radius:.25rem;padding:.15rem .45rem;font-weight:600}.tag-unstable[data-v-f43a455d]{color:#b45309;background:#fef3c7;border-radius:.25rem;padding:.15rem .45rem;font-weight:600}.tag-unmastered[data-v-f43a455d]{color:#64748b;background:#f1f5f9;border-radius:.25rem;padding:.15rem .45rem}.progress-bar-container[data-v-f43a455d]{background:#e2e8f0;border-radius:9999px;width:100%;height:.5rem;overflow:hidden}.progress-bar-fill[data-v-f43a455d]{background:linear-gradient(90deg,#10b981 0%,#059669 100%);border-radius:9999px;height:100%;transition:width .4s}@media (width<=700px){.plan-strip[data-v-f43a455d]{grid-template-columns:1fr}.tasks-header h2[data-v-f43a455d]{font-size:1.15rem}}@media (width<=479px){.task-card[data-v-f43a455d]{grid-template-columns:2.5rem minmax(0,1fr);gap:.5rem .75rem;padding:.85rem;display:grid}.task-icon-wrapper[data-v-f43a455d]{grid-area:1/1/span 2;align-self:start}.task-content[data-v-f43a455d],.task-action[data-v-f43a455d]{grid-column:2}.task-badge-row[data-v-f43a455d]{flex-wrap:wrap}.task-action[data-v-f43a455d]{justify-self:start}}.coach-bubble-wrapper[data-v-c4c8e6e3]{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:16px;align-items:flex-start;gap:.85rem;margin-bottom:1rem;padding:.85rem 1.15rem;transition:all .25s;display:flex;box-shadow:0 4px 16px #0000000a}.coach-bubble-wrapper.hint[data-v-c4c8e6e3]{background:#fffdfa;border-left:4px solid #f59e0b}.coach-bubble-wrapper.feedback[data-v-c4c8e6e3]{background:#f0fdf4;border-left:4px solid #10b981}.coach-bubble-wrapper.status[data-v-c4c8e6e3]{background:#eff6ff;border-left:4px solid #3b82f6}.coach-avatar[data-v-c4c8e6e3]{flex-direction:column;flex-shrink:0;align-items:center;gap:.2rem;display:flex}.avatar-circle[data-v-c4c8e6e3]{background:linear-gradient(135deg,#e0e7ff 0%,#ede9fe 100%);border-radius:50%;justify-content:center;align-items:center;width:42px;height:42px;display:flex;box-shadow:0 2px 6px #6366f133}.avatar-icon.greeting[data-v-c4c8e6e3]{color:#6366f1}.avatar-icon.hint[data-v-c4c8e6e3]{color:#d97706}.avatar-icon.feedback[data-v-c4c8e6e3]{color:#059669}.avatar-icon.status[data-v-c4c8e6e3]{color:#2563eb}.avatar-name[data-v-c4c8e6e3]{color:var(--text-muted,#64748b);font-size:.72rem;font-weight:700}.speech-bubble[data-v-c4c8e6e3]{flex-direction:column;flex:1;gap:.35rem;display:flex}.bubble-header[data-v-c4c8e6e3]{justify-content:space-between;align-items:center;display:flex}.header-left[data-v-c4c8e6e3]{align-items:center;gap:.4rem;display:flex}.bubble-sparkle[data-v-c4c8e6e3]{color:#f59e0b}.bubble-title[data-v-c4c8e6e3]{color:#1e293b;font-size:.92rem}.header-tools[data-v-c4c8e6e3]{align-items:center;gap:.3rem;display:flex}.icon-tool-btn[data-v-c4c8e6e3]{color:#94a3b8;cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:.2rem;transition:all .15s;display:flex}.icon-tool-btn[data-v-c4c8e6e3]:hover{color:#334155;background:#0000000d}.bubble-body[data-v-c4c8e6e3]{margin:0}.bubble-message[data-v-c4c8e6e3]{color:#334155;margin:0;font-size:.9rem;line-height:1.5}.bubble-footer[data-v-c4c8e6e3]{justify-content:flex-end;margin-top:.35rem;display:flex}.coach-action-btn[data-v-c4c8e6e3]{color:#fff;cursor:pointer;background:#4f46e5;border:none;border-radius:20px;align-items:center;gap:.35rem;padding:.3rem .75rem;font-size:.8rem;font-weight:600;transition:all .15s;display:inline-flex}.coach-action-btn[data-v-c4c8e6e3]:hover{background:#4338ca}.quick-links[data-v-87f3bbaf]{flex-wrap:wrap;gap:10px;margin-bottom:24px;display:flex}.quick-link[data-v-87f3bbaf]{border:1px solid var(--line);color:#4b5a45;background:#fffefa;border-radius:10px;align-items:center;gap:8px;min-height:44px;padding:9px 15px;font-size:14px;font-weight:600;transition:background .15s,border-color .15s;display:inline-flex}.quick-link[data-v-87f3bbaf]:hover{background:#f1f5e9;border-color:#c2ceb2}.quick-link svg[data-v-87f3bbaf]{color:#7b8c69}.footprint-note[data-v-87f3bbaf]{border:1px solid var(--line);color:#55664d;background:#fbfcf7;border-radius:13px;align-items:center;gap:14px;margin-bottom:22px;padding:18px 20px;transition:border-color .15s;display:flex}.footprint-note[data-v-87f3bbaf]:hover{border-color:#b7c6a5}.footprint-note svg[data-v-87f3bbaf]:first-child{color:#7b8c69}.footprint-note>div[data-v-87f3bbaf]{flex-direction:column;flex:1;min-width:0;display:flex}.footprint-note strong[data-v-87f3bbaf]{color:#3d4d36;font-size:14px}.footprint-note span[data-v-87f3bbaf]{color:var(--muted);margin-top:2px;font-size:12px}.footprint-note>svg[data-v-87f3bbaf]:last-child{color:#9aa68c}.login-container[data-v-99482bc1]{background:var(--bg-canvas,#f7f5f0);justify-content:center;align-items:center;min-height:100vh;padding:1.5rem;display:flex}.login-card[data-v-99482bc1]{background:#fff;border-radius:1.25rem;width:100%;max-width:460px;padding:2.25rem 2rem;box-shadow:0 10px 30px #32281414}.login-header[data-v-99482bc1]{text-align:center;margin-bottom:2rem}.login-mark[data-v-99482bc1]{color:#2f5943;background:#e8f0ea;border-radius:1rem;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:1rem;display:inline-flex}.login-header h1[data-v-99482bc1]{color:#222923;margin:0 0 .25rem;font-size:1.75rem;font-weight:700}.login-subtitle[data-v-99482bc1]{color:#6c7a70;margin:0;font-size:.95rem}.login-form-title[data-v-99482bc1]{margin-bottom:1.5rem}.login-form-title h2[data-v-99482bc1]{color:#242e28;margin:.35rem 0;font-size:1.25rem;font-weight:600}.hint-text[data-v-99482bc1]{color:#727f76;margin:0;font-size:.9rem}.field-group[data-v-99482bc1]{margin-bottom:1.25rem}.field-label[data-v-99482bc1]{color:#38453d;margin-bottom:.4rem;font-size:.9rem;font-weight:600;display:block}.password-input-wrapper[data-v-99482bc1]{align-items:center;display:flex;position:relative}.password-input-wrapper .text-input[data-v-99482bc1]{padding-right:3rem}.password-toggle[data-v-99482bc1]{color:#6c7a70;cursor:pointer;background:0 0;border:none;border-radius:.375rem;justify-content:center;align-items:center;padding:.5rem;transition:all .2s;display:flex;position:absolute;right:.75rem}.password-toggle[data-v-99482bc1]:hover{color:#3d6a58;background:#f0f4f1}.password-toggle[data-v-99482bc1]:focus-visible{outline-offset:2px;outline:2px solid #3d6a58}.text-input[data-v-99482bc1]{box-sizing:border-box;background:#fcfbf9;border:1.5px solid #d6dfd9;border-radius:.6rem;width:100%;min-height:48px;padding:.75rem 1rem;font-size:1rem}.text-input[data-v-99482bc1]:focus{background:#fff;border-color:#3d6a58;outline:none}.submit-btn[data-v-99482bc1]{justify-content:center;align-items:center;gap:.5rem;width:100%;min-height:48px;margin-top:1.5rem;font-size:1.05rem;display:flex}.feedback[data-v-99482bc1]{color:#b42318;align-items:center;gap:.5rem;margin-top:.5rem;font-size:.9rem;display:flex}.spin[data-v-99482bc1]{animation:1s linear infinite spin-99482bc1}@keyframes spin-99482bc1{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.profiles-list[data-v-99482bc1]{flex-direction:column;gap:.75rem;margin:1.25rem 0;display:flex}.profile-card[data-v-99482bc1]{cursor:pointer;background:#fdfefc;border:1.5px solid #e1e8e3;border-radius:.75rem;align-items:center;gap:1rem;min-height:56px;padding:.85rem 1rem;transition:all .2s;display:flex}.profile-card[data-v-99482bc1]:hover{background:#f4f8f5;border-color:#3d6a58;transform:translateY(-1px)}.profile-avatar[data-v-99482bc1]{color:#fff;background:#3d6a58;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.2rem;font-weight:600;display:flex}.profile-info[data-v-99482bc1]{flex-direction:column;flex:1;display:flex}.profile-info strong[data-v-99482bc1]{color:#222923;font-size:1rem}.profile-info span[data-v-99482bc1]{color:#727f76;font-size:.82rem}.login-footer-actions[data-v-99482bc1]{flex-direction:column;gap:.75rem;margin-top:1.5rem;display:flex}.login-footer-actions .button[data-v-99482bc1]{justify-content:center;width:100%;min-height:48px}:root{--canvas:#f7f8f2;--surface:#fffefa;--surface-alt:#fcfcf8;--surface-soft:#f6f8ef;--surface-hover:#f1f3eb;--ink:#344337;--text-strong:#2b3a2f;--muted:#818977;--text-soft:#9aa190;--line:#e2e5d8;--border:#e2e5d8;--border-strong:#cfd8c5;--green:#2f5942;--accent:#2f5942;--green-hover:#316350;--amber:#b45309;--blue:#2563eb;--danger:#a1532f;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-pill:9999px;--reading-size:20px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}body{background:var(--canvas);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif;font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button,a{touch-action:manipulation}button:disabled{opacity:.48;cursor:not-allowed}button{color:inherit}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h1{letter-spacing:-.9px;font-size:clamp(27px,2.6vw,36px);font-weight:700;line-height:1.4}h2{letter-spacing:-.5px;font-size:23px;line-height:1.55}h3{font-size:18px}svg{vertical-align:middle;flex-shrink:0}:focus-visible{outline-offset:4px;outline:3px solid #b69242}main:focus,h2[tabindex]:focus{outline:none}.skip-link{z-index:100;background:#fff;padding:12px;position:fixed;top:-100px;left:20px}.skip-link:focus{top:12px}.app-shell{min-height:100dvh}.sidebar{background:var(--surface-alt);border-right:1px solid var(--line);z-index:10;flex-direction:column;width:250px;height:100dvh;padding:0;display:flex;position:fixed;inset:0 auto 0 0;overflow:hidden}.brand{letter-spacing:-.5px;border-bottom:1px solid var(--line);background:var(--surface-alt);flex-shrink:0;align-items:center;gap:11px;padding:18px 16px 14px;font-size:18px;font-weight:750;display:flex}.brand-mark{background:var(--green);color:#f4e8ba;border-radius:12px;place-items:center;width:40px;height:40px;display:grid;box-shadow:0 3px #183d31}.brand small{color:var(--muted);letter-spacing:.5px;margin-top:3px;font-size:10px;font-weight:400;display:block}.sidebar-section{letter-spacing:1.2px;color:#838b7d;padding:50px 16px 14px;font-size:11px}.sidebar nav{flex-direction:column;gap:8px;display:flex}.nav-item{color:#6b736a;border-radius:10px;align-items:center;gap:13px;min-height:52px;padding:14px 15px;font-size:14px;font-weight:500;display:flex}.nav-item:hover{background:#f0f2e9}.nav-item.active{color:var(--green);background:#eaf0df;font-weight:700}.nav-dot{background:#567450;border-radius:50%;width:6px;height:6px;margin-left:auto}.sidebar-scroll-content{scrollbar-width:thin;scrollbar-color:#d1d5db transparent;flex-direction:column;flex:auto;min-height:0;padding:10px 12px 14px;display:flex;overflow:hidden auto}.sidebar-scroll-content::-webkit-scrollbar{width:5px}.sidebar-scroll-content::-webkit-scrollbar-track{background:0 0}.sidebar-scroll-content::-webkit-scrollbar-thumb{background-color:#d1d5db;border-radius:4px}.sidebar-scroll-content::-webkit-scrollbar-thumb:hover{background-color:#9ca3af}.sidebar-note{color:#7b8871;background:#f6f8ef;border:1px solid #e7ebd9;border-radius:10px;flex-direction:column;gap:4px;margin-top:auto;padding:11px 13px;display:flex}.sidebar-note svg{color:#657e5b}.sidebar-note p{color:#55664d;letter-spacing:.5px;margin:0;font-size:12.5px;font-weight:600;line-height:1.45}.sidebar-note>span{color:#8c9883;font-size:11px;display:block}.sidebar-bottom-bar{border-top:1px solid var(--line);background:var(--surface-alt);z-index:5;flex-shrink:0;margin-top:auto;padding:10px 12px 12px;box-shadow:0 -3px 8px #00000005}.parent-nav{color:#334155;text-align:left;background:#fff;border:1px solid #e2e8f0;border-radius:9px;align-items:center;gap:9px;width:100%;padding:8px 10px;font-size:13px;transition:all .15s;display:flex;box-shadow:0 1px 2px #00000008}.parent-nav:hover{color:#166534;background:#f0fdf4;border-color:#86efac;transform:translateY(-1px);box-shadow:0 3px 6px #16653414}.parent-nav-badge{color:#0284c7;background:#e0f2fe;border:1px solid #bae6fd;border-radius:7px;flex-shrink:0;place-items:center;width:30px;height:30px;transition:all .15s;display:grid}.parent-nav:hover .parent-nav-badge{color:#fff;background:#22c55e;border-color:#22c55e}.parent-nav-body{flex-direction:column;flex:1;min-width:0;display:flex}.parent-nav-title{color:#1e293b;font-size:.86rem;font-weight:700;line-height:1.25}.parent-nav:hover .parent-nav-title{color:#15803d}.parent-nav-desc{color:#64748b;white-space:nowrap;text-overflow:ellipsis;margin-top:1px;font-size:.65rem;overflow:hidden}.parent-nav-arrow{color:#94a3b8;flex-shrink:0;margin-left:auto;transition:transform .15s,color .15s}.parent-nav:hover .parent-nav-arrow{color:#15803d;transform:translate(1px,-1px)}.sidebar-foot{color:#94a3b8;text-align:center;padding-top:7px;font-size:10px}.workspace{flex-direction:column;min-height:100dvh;margin-left:250px;display:flex}.topbar{border-bottom:1px solid var(--line);background:#fcfcf88c;justify-content:space-between;align-items:center;gap:18px;height:83px;padding:0 42px;display:flex}.breadcrumb{color:#71796c;font-size:12px}.breadcrumb span{color:#b5bbae;padding:0 13px}.top-actions{align-items:center;gap:27px;display:flex}.font-control{color:var(--muted);align-items:center;gap:7px;font-size:12px;display:flex}.font-control select{min-height:36px;color:var(--ink);cursor:pointer;background:0 0;border:0}.profile{align-items:center;gap:9px;font-size:13px;display:flex}.profile small{color:var(--muted);font-size:10px}.avatar{color:#817240;background:#efe7ce;border:3px solid #fff;border-radius:50%;place-items:center;width:33px;height:33px;font-size:12px;display:grid}.mobile-parent{display:none!important}.prototype-note{color:#69705e;background:#f0f1e6;align-items:flex-start;gap:8px;padding:10px 42px;font-size:11px;line-height:1.7;display:flex}.prototype-note svg{margin-top:2px}.prototype-note strong{font-weight:600}main{flex:1;width:100%;min-width:0;max-width:1420px;margin:0 auto;padding:36px 42px 0}.page-heading{justify-content:space-between;align-items:center;gap:18px;margin-bottom:27px;display:flex}.eyebrow{letter-spacing:1.2px;color:#748167;align-items:center;gap:7px;font-size:11px;font-weight:600;display:flex}.tiny-line{background:#8f9d7a;width:20px;height:1px;display:inline-block}.page-heading .eyebrow{margin-bottom:10px}.page-heading p{color:var(--muted);margin-top:9px;font-size:14px}.outline-tag{color:#6a775f;white-space:nowrap;border:1px solid #dce1d4;border-radius:7px;padding:6px 11px;font-size:10px}.home-grid{grid-template-columns:minmax(0,1fr) 277px;gap:22px;display:grid}.hero-card{background:#edf1e1;border:1px solid #dce4d0;border-radius:17px;min-height:363px;padding:30px;position:relative;overflow:hidden}.hero-copy{z-index:1;max-width:62%;position:relative}.pill{color:#4f6b40;background:#e5edde;border-radius:6px;align-items:center;gap:6px;padding:6px 10px;font-size:11px;font-weight:600;line-height:1.5;display:inline-flex}.hero-card .pill{background:#ffffffa6}.pill.amber{color:#856527;background:#faf0d2}.hero-copy h2{color:#304c36;letter-spacing:-1px;margin:18px 0 13px;font-size:clamp(26px,2.5vw,36px);line-height:1.5}.hero-copy>p{color:#6b7861;font-size:13px;line-height:1.9}.hero-meta{color:#6e7a65;flex-wrap:wrap;gap:14px;margin:20px 0;font-size:11px;display:flex}.hero-meta span{align-items:center;gap:5px;display:flex}.hero-card .desk-art{pointer-events:none;width:53%;position:absolute;top:49px;right:-18px}.hero-corner{color:#869278;letter-spacing:2px;font-size:10px;position:absolute;bottom:28px;right:30px}.button{text-align:center;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:12px 20px;font-size:14px;font-weight:600;line-height:1.45;transition:background .15s,transform .15s;display:inline-flex}.button:not(:disabled):active{transform:translateY(1px)}.button.primary{background:var(--green);color:#fff;box-shadow:0 3px #163b2b21}.button.primary:hover:not(:disabled){background:var(--green-hover)}.button.secondary{background:var(--surface);color:#42563f;border-color:var(--border-strong)}.button.secondary:hover{background:#f3f5ed}.button.quiet{background:var(--surface-hover);color:#59654f}.button.quiet:hover{background:#e8eddd}.text-button{color:#446445;background:0 0;border:0;justify-content:center;align-items:center;gap:7px;min-height:44px;padding:9px 0;font-size:13px;display:inline-flex}.text-button:hover{text-decoration:underline}.icon-button{border:1px solid var(--line);background:var(--surface);border-radius:8px;justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}.button-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.centered{justify-content:center}.plan-card{border:1px solid var(--line);background:#fefefa;border-radius:17px;padding:26px 23px 0}.section-title{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.section-title h2{align-items:center;gap:8px;font-size:17px;display:flex}.small-icon{color:#89996c}.muted{color:var(--muted)}.small{font-size:12px}.plan-list{margin:28px 0 24px;padding:0;list-style:none}.plan-list li{align-items:flex-start;gap:13px;padding-bottom:25px;display:flex;position:relative}.plan-list li:last-child{padding-bottom:0}.plan-list li:not(:last-child):after{content:"";border-left:1px dashed #d6dccb;position:absolute;top:31px;bottom:4px;left:13px}.plan-number{color:#61714f;background:#f4f6ec;border:1px solid #d9dfcc;border-radius:50%;flex-shrink:0;place-items:center;width:28px;height:28px;font-size:11px;display:grid}.plan-number.checked{background:var(--green);color:#fff}.plan-number.restful{color:#9b875a;background:#faf3e1;border-color:#ece2c7}.plan-list strong{font-size:13px;font-weight:600}.plan-list p{color:var(--muted);margin-top:3px;font-size:11px}.plan-bottom{color:#89917e;border-top:1px solid #eaece2;align-items:center;gap:7px;padding:18px 0;font-size:10px;display:flex}.section-label{justify-content:space-between;align-items:center;margin:30px 0 16px;display:flex}.section-label h2{font-size:16px}.section-label>span{color:var(--muted);font-size:11px}.activity-grid{grid-template-columns:1fr 1fr;gap:22px;display:grid}.activity-card{border:1px solid var(--line);background:#fefefa;border-radius:14px;gap:17px;padding:26px;transition:border-color .15s;display:flex;position:relative;overflow:hidden}.activity-card:hover{border-color:#9cae8d}.activity-icon{border-radius:14px;flex-shrink:0;place-items:center;width:51px;height:51px;display:grid}.mint{color:#6a856e;background:#e8eee5}.peach{color:#a0874c;background:#f5edda}.activity-copy{z-index:1;position:relative}.activity-copy .eyebrow{font-size:10px}.activity-copy h3{margin:8px 0 7px;font-size:19px}.activity-copy p{color:var(--muted);max-width:210px;font-size:11px;line-height:1.9}.text-link{color:#526d42;align-items:center;gap:12px;margin-top:17px;font-size:12px;font-weight:600;display:inline-flex}.wave-decoration{opacity:.43;align-items:center;gap:5px;display:flex;position:absolute;top:73px;right:17px}.wave-decoration i{background:#d3decf;border-radius:4px;width:5px}.review-decoration{opacity:.6;width:59px;height:53px;position:absolute;bottom:32px;right:18px}.review-decoration span{background:#f6f1e2;border:1px solid #d6cbab;border-radius:4px;width:45px;height:37px;display:block;position:absolute;transform:rotate(8deg)}.review-decoration span:nth-child(2){top:6px;left:6px;transform:rotate(-7deg)}.review-decoration span:nth-child(3){top:12px;left:12px;transform:rotate(4deg)}.gentle-note{color:#89906e;background:#efefe4;border:1px solid #e7e7d7;border-radius:11px;align-items:center;gap:14px;margin-top:25px;padding:21px 24px;display:flex}.gentle-note strong{color:#637052;font-size:13px;font-weight:600;display:block}.gentle-note span{color:#7b836c;margin-top:4px;font-size:11px;display:block}.page-footer{color:#909783;align-items:center;gap:7px;width:100%;max-width:1420px;margin:0 auto;padding:27px 42px 24px;font-size:10px;display:flex}.page-footer>span{margin-left:auto}.panel{background:var(--surface);border:1px solid var(--line);border-radius:15px}.reading{font-size:var(--reading-size);line-height:1.9}.prepare-math{grid-template-columns:1.3fr 1fr;align-items:center;padding:42px;display:grid;overflow:hidden}.prepare-math h2{margin:22px 0 14px;font-size:31px}.prepare-math .desk-art{width:100%}.prepare-math .small{margin-top:16px}.mini-steps{color:#718164;flex-wrap:wrap;gap:15px;margin:26px 0;font-size:12px;display:flex}.mini-steps span{align-items:center;gap:6px;display:flex}.mini-steps b{background:#edf1e2;border-radius:50%;place-items:center;width:23px;height:23px;font-size:11px;display:grid}.work-toolbar{color:var(--muted);justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;font-size:12px;display:flex}.step-track{grid-template-columns:repeat(4,1fr);margin-bottom:24px;display:grid}.step-track>div{color:#909780;border-bottom:3px solid #e1e5d8;align-items:center;gap:9px;padding:12px 9px 15px;display:flex}.step-track>div.current{color:var(--green);border-color:#53774b}.step-track>div.complete{color:#728865;border-color:#adbda0}.step-track>div>span{border:1px solid #d5dccb;border-radius:50%;place-items:center;width:26px;height:26px;font-size:12px;display:grid}.step-track .current>span{background:var(--green);color:#fff;border-color:var(--green)}.step-track strong{font-size:13px}.math-grid{grid-template-columns:minmax(0,.83fr) minmax(0,1.17fr);align-items:start;gap:23px;display:grid}.problem-panel{background:#faf6e9;padding:29px;position:sticky;top:22px}.problem-panel h2{margin:19px 0;font-size:25px}.problem-text{font-size:var(--reading-size);overflow-wrap:anywhere;line-height:2.1}.problem-rule{border-top:1px dashed #d9d1b9;margin:25px 0}.subheading{color:#79826b;margin-bottom:11px;font-size:12px;font-weight:600}.question-note{color:#7b6934;background:#efe8d0;border-radius:8px;align-items:flex-start;gap:9px;padding:13px;font-size:14px;display:flex}.question-note svg{margin-top:3px}.found-clues{margin-top:25px}.found-clues>div{color:#617148;align-items:center;gap:8px;padding:7px 0;font-size:13px;display:flex}.paper-reminder{color:#9b9278;align-items:center;gap:7px;margin-top:30px;font-size:11px;display:flex}.paper-reminder svg{width:15px}.task-panel{padding:29px}.task-step{letter-spacing:2px;color:#8b987f;margin-bottom:14px;font-size:10px}.task-step>span{letter-spacing:0;color:#969e8c;margin-left:10px}.task-panel h2{margin-bottom:20px;font-size:24px}.choice-stack{flex-direction:column;gap:12px;display:flex}.choice-stack>p{font-size:13px}.choice{width:100%;font-size:var(--reading-size);text-align:left;cursor:pointer;background:#fdfef8;border:1px solid #dfe4d7;border-radius:9px;align-items:center;gap:11px;padding:16px;line-height:1.6;display:flex}.choice:hover{border-color:#9daf8d}.choice.selected{background:#edf2e5;border-color:#759364;box-shadow:inset 0 0 0 1px #759364}input[type=radio],input[type=checkbox]{accent-color:var(--green);flex-shrink:0;width:18px;height:18px}.check-box{background:#fff;border:1px solid #bac6b0;border-radius:4px;flex-shrink:0;place-items:center;width:20px;height:20px;display:grid}.selected .check-box{color:#fff;background:#55764b;border-color:#55764b}.choice.inline{width:auto;min-height:48px;padding:10px 14px;font-size:15px}fieldset{border:0;margin:0;padding:0}legend{margin-bottom:11px;font-size:15px}.diagram{background:#f6f6ee;border-radius:9px;margin:22px 0 14px;padding:20px 12px 12px}.diagram-row{align-items:center;gap:9px;margin-bottom:14px;display:flex}.diagram-row>span{flex-shrink:0;width:54px;font-size:12px}.bar-strip{flex:1;gap:3px;min-width:0;display:flex}.bar-unit{color:#4c6240;background:#dbe7cb;border:1px solid #7e9870;border-radius:4px;flex:0 53px;width:53px;min-width:0;height:46px;padding:0;font-size:12px}.bar-unit.fixed{place-items:center;display:grid}.bar-unit.extra{color:#594415;background:#e9ce7c;border:2px solid #a47a22}.diagram-controls{border-top:1px solid #e3e6d9;justify-content:center;align-items:center;gap:14px;padding-top:12px;font-size:13px;display:flex}.diagram-controls b{color:var(--green);font-size:18px}.field-label{color:#65725a;margin:0 0 9px;font-size:13px;font-weight:600;display:block}.text-input{border:1px solid var(--border-strong);width:100%;min-width:0;min-height:48px;color:var(--ink);background:#fffefa;border-radius:8px;padding:12px;font-size:16px}.text-input::placeholder{color:#9aa190;font-size:13px}.equation-input{font-size:22px}.math-keypad{margin-top:10px}.math-keypad .button{min-width:44px;min-height:44px;padding:5px 13px;font-size:20px}.answer-fields{grid-template-columns:1.5fr 1fr;gap:14px;margin:19px 0;display:grid}.hint-card{color:#7e6328;background:#fcf1cd;border-radius:9px;align-items:flex-start;gap:9px;margin-top:20px;padding:16px;display:flex}.hint-card svg{margin-top:3px}.hint-card strong{font-size:12px}.hint-card p{margin-top:6px;font-size:15px;line-height:1.9}.feedback{color:#a1532f;background:#fff6ef;border:1px solid #edd8c8;border-radius:8px;margin-top:15px;padding:13px 16px;font-size:14px}.feedback li{margin-left:12px}.task-actions{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:25px;padding-top:20px;display:flex}.task-foot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:17px;display:flex}.result-panel{text-align:center;padding:38px}.success-emblem{color:#5b7950;background:#edf2df;border-radius:50%;place-items:center;width:78px;height:78px;margin:0 auto 23px;display:grid}.result-panel h2{margin:20px 0}.result-equation{color:var(--green);overflow-wrap:anywhere;margin:25px 0;font-size:clamp(22px,3.5vw,38px);font-weight:600}.result-equation small{font-size:17px}.result-panel .notice{max-width:650px;margin:25px auto}.result-panel>.small{margin-top:23px}.notice{color:#737d62;background:#f2f3e9;border-radius:9px;padding:16px;font-size:13px;line-height:1.9}.modal{width:calc(100% - 36px);max-width:540px;color:var(--ink);background:#fffef8;border:1px solid #dee3d4;border-radius:18px;padding:28px;box-shadow:0 25px 100px #1e302733}.modal-top{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.modal h2{margin-bottom:15px}.modal p{color:var(--muted)}.modal .notice{margin:20px 0}.modal .button-row{justify-content:flex-end}.explanation-list{padding-left:24px;font-size:18px;line-height:2.1}.dictation-setup-grid{grid-template-columns:minmax(0,1.3fr) minmax(0,.85fr);gap:24px;display:grid}.form-panel{padding:28px}.word-list-choices{flex-direction:column;gap:12px;margin:24px 0;display:flex}.list-choice{border:1px solid var(--line);cursor:pointer;border-radius:9px;align-items:center;gap:12px;padding:17px;display:flex}.list-choice.selected{background:#f0f4e7;border-color:#8da177}.list-choice strong{font-size:16px;display:block}.list-choice small{color:var(--muted);margin-top:5px;font-size:11px;display:block}.field-group{margin:25px 0}.interval-label{flex-wrap:wrap;align-items:center;gap:9px;margin-top:15px;font-size:13px;display:flex}.interval-label select{width:95px}.checkbox-label{color:var(--muted);cursor:pointer;align-items:center;gap:9px;font-size:12px;display:flex}.word-preview{background:#f1f3e7;padding:30px}.word-preview h2{margin:16px 0 25px}.word-chips{flex-wrap:wrap;gap:10px;display:flex}.word-chips>span{color:#506348;overflow-wrap:anywhere;background:#fffef8;border:1px solid #dfe5d1;border-radius:7px;max-width:100%;padding:7px 13px;font-size:16px}.word-preview .notice{background:#e7ecdb;align-items:flex-start;gap:12px;margin:30px 0 20px;display:flex}.word-preview .notice svg{margin-top:4px}.listening-panel{text-align:center;padding:35px}.listening-panel>.eyebrow{justify-content:center}.listen-orb{color:#5c7d59;background:#edf2e4;border:1px solid #c9d8bd;border-radius:50%;place-items:center;width:150px;height:150px;margin:35px auto 22px;display:grid;position:relative}.listen-orb>span{border:1px dashed #d7dfc9;border-radius:50%;position:absolute;inset:-12px}.listen-orb.speaking>span{animation:1.6s ease-in-out infinite breathe}@keyframes breathe{50%{opacity:.4;transform:scale(1.08)}}.listening-panel h1{margin-bottom:15px;font-size:34px}.listening-panel .reading{color:#78816b}.word-progress{flex-wrap:wrap;justify-content:center;gap:7px;max-width:540px;margin:28px auto 12px;display:flex}.word-progress>span{background:#e4e8db;border-radius:3px;width:21px;height:5px}.word-progress>span.past{background:#a9bd93}.word-progress>span.current{background:#517248}.listening-panel .button-row{margin-top:31px}.skip-word{margin-top:19px}.listening-panel .feedback{max-width:580px;margin:20px auto}.check-panel{padding:28px}.check-word{border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:15px;padding:20px 0;display:flex}.word-number{color:#9ba68e;width:25px;font-size:12px}.word-answer{flex:1;min-width:130px}.word-answer strong{overflow-wrap:anywhere;font-size:22px;display:block}.word-answer small{color:var(--muted);margin-top:2px;display:block}.button.mark-correct{color:#355635;background:#e0edd5;border-color:#88a778}.button.mark-retry{color:#8f6d29;background:#f8edc8;border-color:#c6a755}.result-stats{justify-content:center;gap:60px;margin:30px 0;display:flex}.result-stats strong{color:#526f40;font-size:40px;display:block}.result-stats strong small{font-size:20px;font-weight:400}.result-stats span{color:var(--muted);font-size:13px}.result-panel .word-chips{margin-bottom:26px}.empty-state{text-align:center;padding:56px 24px}.empty-illustration{color:#91a676;background:#edf1e2;border-radius:50%;place-items:center;width:120px;height:120px;margin:0 auto 25px;display:grid}.empty-state h2{margin-bottom:14px}.empty-state p{color:var(--muted);margin-bottom:28px}.review-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}.review-section{padding:27px}.history-item{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}.history-item h3{margin:12px 0}.history-item p{color:var(--muted);font-size:13px}.history-item .equation-small{color:#4c6541;font-size:19px}.review-words{border-top:1px solid var(--line);margin-top:25px;padding-top:23px}.review-words .word-chips{margin:16px 0}.parent-warning{color:#837048;background:#f6edd8;align-items:flex-start;gap:10px;display:flex}.parent-warning svg{margin-top:4px}.tabs{border-bottom:1px solid var(--line);gap:20px;margin:22px 0;display:flex}.tabs>button{color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:8px;padding:14px 4px;display:flex}.stat-grid{grid-template-columns:1fr 1fr;gap:23px;display:grid}.stat-card{padding:25px}.stat-card>span{color:var(--muted);font-size:13px}.stat-card strong{color:#486b41;margin:10px 0;font-size:41px;display:block}.stat-card strong small{font-size:13px;font-weight:400}.stat-card p{color:var(--muted);font-size:12px}.parent-summary{margin-top:25px;padding:30px}.parent-summary p{color:var(--muted);margin:16px 0 25px}.parent-editor-grid{grid-template-columns:230px minmax(0,1fr);gap:23px;display:grid}.list-sidebar{align-self:start;padding:22px 16px}.list-sidebar .section-title{padding-left:7px}.list-select{text-align:left;background:0 0;border:1px solid #0000;border-radius:9px;width:100%;margin-bottom:8px;padding:15px 12px;display:block}.list-select.active{background:#ecf1e3;border-color:#d9e3cd}.list-select strong{font-size:13px;display:block}.list-select span{color:var(--muted);margin-top:6px;font-size:11px;display:block}.list-sidebar>.text-button{margin:10px 12px 0}.word-editor{resize:vertical;min-height:215px;line-height:1.9}.editor-preview{margin:22px 0}.save-notice{color:#537449;background:#edf3e3;border-radius:9px;align-items:flex-start;gap:8px;margin:15px 0;padding:15px;font-size:13px;display:flex}@media (width>=1600px){.hero-card{min-height:395px}.hero-card .desk-art{width:49%;right:-3px}}@media (width<=1250px){.sidebar{width:194px;padding-left:13px;padding-right:13px}.brand{gap:8px;font-size:17px}.workspace{margin-left:194px}main,.topbar,.page-footer,.prototype-note{padding-left:27px;padding-right:27px}.home-grid{grid-template-columns:minmax(0,1fr) 248px;gap:18px}.hero-card{padding:24px}.hero-copy{max-width:75%}.hero-copy h2{font-size:29px}.hero-card .desk-art{opacity:.87;width:55%;top:91px;right:-38px}.plan-card{padding:25px 19px 0}.activity-card{gap:12px;padding:23px 20px}.wave-decoration,.review-decoration{display:none}.activity-copy h3{font-size:17px}.page-heading>.outline-tag{display:none}.task-panel,.problem-panel{padding:23px}}@media (width<=1050px){.sidebar{width:228px}.workspace{margin-left:228px}.brand{padding:14px 12px 10px;font-size:16px}.brand-mark{width:34px;height:34px}.brand small{letter-spacing:0;font-size:9px}.nav-item{gap:8px;padding-left:10px;font-size:12.5px}.home-grid{grid-template-columns:minmax(0,1fr) 225px}.hero-card .desk-art{opacity:.55;width:62%;top:130px;right:-70px}.hero-copy{max-width:100%}.hero-copy h2{font-size:27px}.hero-corner{display:none}.hero-meta{gap:8px;max-width:170px}.hero-button{position:relative}.plan-card{padding:23px 17px 0}.plan-bottom{font-size:9px}.math-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:16px}.task-panel,.problem-panel{padding:19px}.task-panel h2{font-size:22px}.task-actions .button{padding-left:14px;padding-right:14px}}@media (width<=959px){.sidebar{border-right:1px solid var(--line);z-index:30;width:min(320px,84vw);height:100dvh;padding:0;transition:transform .22s;position:fixed;top:0;bottom:0;left:0;overflow:hidden;transform:translate(-104%);box-shadow:0 10px 40px #18281e2e}.sidebar.mobile-open{transform:translate(0)}.sidebar .brand{padding:16px 14px 12px;font-size:18px}.brand small{letter-spacing:1px;font-size:10px}.sidebar-head .brand{flex:1;min-width:0}.sidebar-scroll-content{padding:10px 12px 14px}.mobile-menu-toggle,.mobile-topbar-brand{display:inline-flex}.mobile-current-page{display:block}.mobile-menu-close{display:inline-flex}.topbar-leading .breadcrumb{display:none}.mobile-menu-backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:25;background:#1f30236b;display:block;position:fixed;inset:0}.workspace{margin-left:0}.topbar{height:62px;padding:0 20px}.top-actions{gap:15px}.mobile-parent{display:inline-flex!important}.prototype-note{padding:9px 25px;font-size:10px}main{padding:29px 25px 0}.page-heading h1{font-size:29px}.home-grid{grid-template-columns:minmax(0,1fr) 230px}.hero-copy h2{font-size:29px}.hero-card .desk-art{width:58%;top:100px;right:-45px}.hero-meta{max-width:none}.math-grid{grid-template-columns:1fr}.problem-panel{padding:23px;position:static}.problem-panel .eyebrow{font-size:10px}.problem-panel h2{margin:10px 0;font-size:23px}.problem-text{line-height:1.85}.problem-rule{margin:18px 0}.paper-reminder{display:none}.found-clues{margin-top:17px}.task-panel{padding:25px}.diagram{padding:22px}.bar-unit{flex-basis:73px;width:73px}.dictation-setup-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:17px}.form-panel,.word-preview{padding:23px}.choice.inline{font-size:13px}.prepare-math{padding:30px}.prepare-math h2{font-size:27px}}@media (width<=699px){.home-grid,.activity-grid,.dictation-setup-grid,.review-grid,.parent-editor-grid{grid-template-columns:1fr}.hero-card{min-height:355px}.hero-card .desk-art{opacity:.9;width:53%;top:60px;right:-6px}.hero-copy{max-width:75%}.hero-copy h2{font-size:29px}.plan-card{padding:21px 23px 0}.plan-list{gap:12px;margin:20px 0;display:flex}.plan-list li{flex:1;padding:0;display:block}.plan-list li:after{display:none}.plan-number{margin-bottom:8px}.plan-list strong{font-size:12px}.plan-list p{font-size:10px}.plan-bottom{padding:12px 0;font-size:10px}.wave-decoration,.review-decoration{display:flex}.activity-copy h3{font-size:20px}.activity-copy p{max-width:270px}.prepare-math{display:block;position:relative}.prepare-math .desk-art{display:none}.word-preview{padding:24px}.parent-editor-grid .list-sidebar{padding:16px}.list-select{width:auto;margin-right:8px;display:inline-block}.page-heading{flex-direction:column;align-items:flex-start}.profile small{display:none}.check-word .button-row{width:calc(100% - 40px);margin-left:40px}.stat-grid{gap:14px}.stat-card{padding:19px}}@media (width<=479px){.topbar{padding:0 15px}.breadcrumb{font-size:10px}.breadcrumb span{padding:0 5px}.top-actions{gap:10px}.mobile-current-page,.profile{display:none}main{padding:25px 16px 0}.prototype-note{padding:8px 17px}.page-heading h1{font-size:25px}.page-heading p{font-size:12px}.hero-card{min-height:357px;padding:23px}.hero-copy{max-width:100%}.hero-card .desk-art{opacity:.65;width:59%;top:132px;right:-54px}.hero-copy h2{font-size:29px}.hero-copy>p{font-size:12px}.hero-meta{gap:10px;max-width:165px}.hero-button{margin-top:0}.section-label>span{display:none}.activity-card{padding:23px 18px}.activity-copy h3{font-size:18px}.wave-decoration{opacity:.25}.gentle-note{align-items:flex-start;padding:17px}.gentle-note>svg{width:19px;margin-top:2px}.page-footer{flex-wrap:wrap;padding:23px 17px;font-size:9px}.page-footer>span{margin-left:20px}.work-toolbar{flex-wrap:wrap;gap:5px}.work-toolbar>span{font-size:10px}.work-toolbar .text-button{font-size:11px}.work-toolbar .button{min-height:40px;padding:8px 11px;font-size:11px}.step-track>div{gap:6px;padding:9px 3px 12px}.step-track strong{font-size:11px}.step-track>div>span{width:22px;height:22px;font-size:10px}.task-panel,.problem-panel{padding:21px 18px}.task-panel h2{font-size:21px}.choice{padding:13px 11px;font-size:18px}.choice.inline{padding:10px;font-size:13px}.diagram{padding:17px 9px 11px}.diagram-row>span{width:43px;font-size:11px}.bar-unit{flex-basis:43px;width:43px;font-size:10px}.task-actions{gap:10px}.task-actions .button{padding:11px 14px;font-size:13px}.result-panel{padding:30px 19px}.result-panel .reading{font-size:17px}.form-panel,.check-panel{padding:22px 17px}.answer-fields{grid-template-columns:1.4fr 1fr;gap:10px}.listening-panel{padding:25px 17px}.listening-panel .reading{font-size:17px}.listen-orb{width:126px;height:126px}.listening-panel .button-row .button{padding:12px 13px;font-size:12px}.check-word{gap:10px}.word-answer{min-width:180px}.check-word .button{padding:10px 12px;font-size:12px}.tabs{gap:16px}.tabs>button{font-size:13px}.stat-grid{grid-template-columns:1fr}.modal{padding:23px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}:root{--canvas:#fff9e6;--surface:#fff;--surface-alt:#fffef8;--surface-soft:#fff5e0;--surface-hover:#fff0d6;--ink:#2c3e50;--text-strong:#1a252f;--muted:#7f8c8d;--text-soft:#95a5a6;--green:#4caf50;--accent:#6bcf7f;--green-hover:#45a049;--blue:#4a90e2;--amber:#ffb84d;--danger:#e74c3c;--purple:#9b59b6;--cyan:#17a2b8;--line:#e8e8e8;--border:#e0e0e0;--border-strong:#ccc;--radius-sm:12px;--radius-md:16px;--radius-lg:24px;--radius-pill:9999px;--reading-size:18px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px}body{background:linear-gradient(135deg, var(--canvas) 0%, #ffe8cc 100%);font-family:-apple-system,PingFang SC,Microsoft YaHei UI,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.8}.button{border-radius:var(--radius-lg);min-height:52px;padding:14px 24px;font-size:16px;font-weight:700;transition:all .2s}.button.primary{background:linear-gradient(135deg,#6bcf7f 0%,#4caf50 100%);box-shadow:0 6px 16px #6bcf7f4d}.button.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #6bcf7f66}h1{color:var(--ink);letter-spacing:-.5px;font-size:clamp(32px,4vw,42px);font-weight:800}h2{color:var(--ink);font-size:26px;font-weight:700}h3{font-size:20px;font-weight:600}.brand-mark{background:linear-gradient(135deg,#4caf50 0%,#45a049 100%);box-shadow:0 4px #2d7a30}.nav-item{border-radius:var(--radius-md);min-height:48px;padding:12px 15px;font-size:15px;font-weight:500}.nav-item:hover{background:#e8f5e9;transform:translate(3px)}.nav-item.active{color:var(--green);background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);font-weight:700;box-shadow:0 2px 8px #4caf5026}.text-input{border:2px solid var(--border);border-radius:var(--radius-md);min-height:52px;padding:14px 16px;font-size:17px;transition:all .2s}.text-input:focus{border-color:var(--green);outline:none;box-shadow:0 0 0 4px #6bcf7f26}.panel,.glass-panel{border-radius:var(--radius-lg);background:var(--surface);transition:all .2s;box-shadow:0 6px 20px #0000000f}.panel:hover,.activity-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a}.sidebar{background:var(--surface-alt);border-right:2px solid var(--line)}.sidebar-note{border-radius:var(--radius-md);background:linear-gradient(135deg,#e8f5e9 0%,#f1f8e9 100%);border:2px solid #c8e6c9;padding:14px 16px}.sidebar-note p{color:var(--green);font-size:14px;font-weight:600}.topbar{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:2px solid var(--line);background:#ffffffe6;min-height:70px}.breadcrumb{font-size:13px;font-weight:500}.avatar{color:#8b4513;background:linear-gradient(135deg,#ffd93d 0%,orange 100%);border:3px solid #fff;width:40px;height:40px;font-size:16px;box-shadow:0 2px 8px #0000001a}.parent-nav{border-radius:var(--radius-md);border:2px solid #e8e8e8;padding:10px 12px;transition:all .2s}.parent-nav:hover{background:linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%);border-color:#86efac;transform:translateY(-2px);box-shadow:0 4px 12px #1665341a}.tabs>button{border-bottom-width:3px;padding:16px 8px;font-size:15px;font-weight:600}.tabs>button.active{border-color:var(--green);color:var(--green);font-weight:700}.stat-card strong{background:linear-gradient(135deg,#4caf50 0%,#45a049 100%);-webkit-text-fill-color:transparent;background-clip:text;font-size:48px;font-weight:800}.choice{border:2px solid var(--line);border-radius:var(--radius-md);min-height:56px;padding:18px;font-size:17px;transition:all .2s}.choice:hover{border-color:var(--green);background:#f0fdf4;transform:translate(4px)}.choice.selected{border-color:var(--green);background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);border-width:3px;box-shadow:0 0 0 4px #6bcf7f26}.empty-illustration{background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);border:3px solid #a5d6a7;width:140px;height:140px}.icon-button{border-radius:var(--radius-sm);min-width:48px;min-height:48px;transition:all .2s}.icon-button:hover{background:var(--surface-hover);transform:translateY(-1px);box-shadow:0 2px 8px #00000014}@media (width<=768px){body{font-size:15px}h1{font-size:clamp(28px,6vw,36px)}h2{font-size:22px}.button{min-height:48px;font-size:15px}.text-input{min-height:48px;font-size:16px}}:focus-visible{outline-offset:4px;border-radius:4px;outline:3px solid #ffb84d}@keyframes gradient-shift{0%,to{background-position:0%}50%{background-position:100%}}@keyframes bounce-gentle{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.success-emblem{width:88px;height:88px;color:var(--green);background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 100%);border:4px solid #a5d6a7}.notice{border-radius:var(--radius-md);background:linear-gradient(135deg,#fff9e6 0%,#fff5e0 100%);border:2px solid #ffe8b3;padding:18px;font-size:15px;line-height:1.8}.feedback{border-radius:var(--radius-md);background:linear-gradient(135deg,#ffebee 0%,#ffe4e1 100%);border:2px solid #ffcdd2;padding:15px 18px;font-size:15px}.modal{border-radius:var(--radius-lg);border:2px solid var(--line);padding:32px;box-shadow:0 20px 60px #00000026}.modal::backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#2c3e5080}.helper-tooltip{animation:2s infinite bounce-gentle}