.lms{min-height:100vh;padding-bottom:64px}.lms .gx-field{position:fixed;inset:-20% -10%;z-index:0;pointer-events:none}.lms>*{position:relative;z-index:1}.lms-top{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1180px;margin:0 auto;padding:18px 24px}.lms-brand{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;padding:0}.lms-brand img{height:30px;width:auto}.lms-brand-tag{font-family:var(--font-display);font-style:italic;color:var(--grape);font-size:18px;border-left:1px solid var(--line);padding-left:10px}.lms-back{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 16px;color:var(--grape);font-weight:600;cursor:pointer;font-size:14px}.lms-gate{max-width:460px;margin:14vh auto;text-align:center;padding:40px 28px;background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.lms-wordmark{height:38px;margin-bottom:18px}.lms-gate h1{font-family:var(--font-display);font-size:30px;margin:0 0 8px;color:var(--grape-deep)}.lms-gate p{color:var(--ink-soft);margin:0 0 22px}.lms-err{max-width:1180px;margin:0 auto 12px;padding:12px 18px;background:#fdecea;color:var(--danger);border-radius:12px}.lms-skel{max-width:1180px;margin:40px auto;text-align:center;color:var(--ink-soft);font-style:italic}.lms-cta{display:inline-block;background:var(--grape);color:#fff;border:0;border-radius:999px;padding:13px 26px;font-weight:700;font-size:15px;cursor:pointer;text-decoration:none;box-shadow:0 8px 22px #4b3f8647}.lms-home{max-width:1180px;margin:0 auto;padding:8px 24px}.lms-hero{margin:14px 0 30px}.lms-hero h1{font-family:var(--font-display);font-size:clamp(30px,5vw,46px);line-height:1.04;color:var(--grape-deep);margin:0 0 10px}.lms-hero p{color:var(--ink-soft);font-size:17px;max-width:620px;margin:0}.lms-weaks{display:grid;gap:18px}.lms-weak{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px 22px;box-shadow:var(--shadow)}.lms-weak-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}.lms-weak-id{display:flex;align-items:center;gap:14px}.lms-weak-emoji{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:var(--marigold-soft);color:var(--grape-deep);font-size:22px;flex:none}.lms-weak h3{margin:0;font-size:19px;color:var(--ink)}.lms-weak-acc{font-size:13px;color:var(--danger);font-weight:600}.lms-retest-btn{background:var(--grape);color:#fff;border:0;border-radius:999px;padding:9px 18px;font-weight:700;font-size:14px;cursor:pointer;flex:none}.lms-lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.lms-lesson{text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:13px 15px;cursor:pointer;display:flex;flex-direction:column;gap:4px;transition:border-color .15s,transform .15s}.lms-lesson:hover{border-color:var(--grape);transform:translateY(-2px)}.lms-lesson-title{font-weight:600;color:var(--ink)}.lms-lesson-sum{font-size:12.5px;color:var(--ink-soft);line-height:1.4}.lms-lesson-meta{font-size:12px;color:var(--grape);font-weight:600;margin-top:2px}.lms-empty{color:var(--ink-soft);font-style:italic;font-size:14px;margin:0}.lms-allgood{background:var(--marigold-soft);border-radius:16px;padding:20px 22px;color:var(--grape-deep);margin-bottom:8px}.lms-browse{margin-top:34px}.lms-browse h2{font-family:var(--font-display);font-size:22px;color:var(--grape-deep);margin:0 0 14px}.lms-subjects{display:flex;flex-wrap:wrap;gap:10px}.lms-subject-pill{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}.lms-subject-head{display:flex;align-items:center;gap:9px;background:none;border:0;padding:11px 16px;cursor:pointer;font-weight:600;color:var(--ink)}.lms-subject-head .lms-weak-emoji{width:30px;height:30px;font-size:15px;border-radius:9px}.lms-subject-count{background:var(--surface-2);color:var(--grape);border-radius:999px;padding:1px 9px;font-size:12px;font-weight:700}.lms-subject-lessons{display:flex;flex-direction:column;border-top:1px solid var(--line)}.lms-sub-lesson{text-align:left;background:none;border:0;border-bottom:1px solid var(--line);padding:11px 16px;cursor:pointer;color:var(--ink);font-size:14px}.lms-sub-lesson:last-child{border-bottom:0}.lms-sub-lesson:hover{background:var(--surface-2)}.lms-done{color:var(--ok);font-weight:700}.lms-reader-wrap{max-width:1180px;margin:0 auto;padding:8px 24px;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.95fr);gap:22px;align-items:start}.lms-reader{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:30px 34px;box-shadow:var(--shadow)}.lms-reader-head{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:8px}.lms-reader-sub{font-size:13px;color:var(--grape);font-weight:700;letter-spacing:.02em;text-transform:uppercase}.lms-reader-head h1{font-family:var(--font-display);font-size:clamp(26px,3.4vw,36px);color:var(--grape-deep);margin:6px 0 4px;line-height:1.1}.lms-reader-est{font-size:13px;color:var(--ink-soft)}.lms-toc{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 6px}.lms-toc a{font-size:12.5px;color:var(--grape);text-decoration:none;background:var(--surface-2);border-radius:999px;padding:4px 12px}.lms-body{font-size:16px;line-height:1.72;color:var(--ink)}.lms-finish{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);text-align:center}.lms-finish p{color:var(--ink-soft);margin:0 0 14px}.lms-chat{position:sticky;top:16px;display:flex;flex-direction:column;height:calc(100vh - 32px);background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}.lms-chat-head{display:flex;align-items:center;gap:8px;padding:15px 18px;border-bottom:1px solid var(--line);font-weight:700;color:var(--grape-deep);font-size:14.5px}.lms-chat-dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px #2e7d5724}.lms-chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.lms-bubble{max-width:92%;padding:11px 14px;border-radius:16px;font-size:14.5px;line-height:1.6}.lms-bubble-user{align-self:flex-end;background:var(--grape);color:#fff;border-bottom-right-radius:5px}.lms-bubble-assistant{align-self:flex-start;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-bottom-left-radius:5px}.lms-bubble-assistant .gx-md :first-child{margin-top:0}.lms-bubble-assistant .gx-md :last-child{margin-bottom:0}.lms-bubble .gx-svg,.lms-bubble .gx-mermaid{margin:8px 0;overflow-x:auto}.lms-bubble .gx-svg svg,.lms-bubble .gx-mermaid svg{max-width:100%;height:auto}.lms-opts{display:flex;flex-direction:column;gap:8px;margin:2px 4px 4px}.lms-opt{text-align:left;background:#fff;border:1px solid var(--border-strong, rgba(28,27,46,.16));border-radius:12px;padding:11px 14px;font-size:14px;font-weight:600;color:var(--grape-deep);cursor:pointer;transition:border-color .15s,transform .12s,background .15s}.lms-opt:hover{border-color:var(--grape);background:var(--marigold-soft);transform:translateY(-1px)}.lms-composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}.lms-composer input{flex:1;border:1px solid var(--line);border-radius:999px;padding:11px 16px;font-size:14.5px;font-family:var(--font-ui);outline:none}.lms-composer input:focus{border-color:var(--grape)}.lms-composer button{background:var(--grape);color:#fff;border:0;border-radius:999px;padding:0 20px;font-weight:700;cursor:pointer}.lms-composer button:disabled{opacity:.5;cursor:default}.lms-retest{max-width:760px;margin:0 auto;padding:8px 24px}.lms-retest-head{text-align:center;margin-bottom:18px}.lms-retest-head h2{font-family:var(--font-display);color:var(--grape-deep);font-size:28px;margin:0 0 6px}.lms-retest-head p{color:var(--ink-soft);margin:0}.lms-mobile-tabs{display:none}@media(max-width:880px){.lms-reader-wrap{grid-template-columns:1fr}.lms-mobile-tabs{display:flex;gap:8px;margin-bottom:8px}.lms-mobile-tabs button{flex:1;padding:11px;border:1px solid var(--line);background:var(--card);border-radius:12px;font-weight:700;color:var(--ink-soft);cursor:pointer}.lms-mobile-tabs button.is-on{background:var(--grape);color:#fff;border-color:var(--grape)}.lms-reader,.lms-chat{display:none}.lms-reader.is-mobile-on{display:block}.lms-chat.is-mobile-on{display:flex;height:calc(100vh - 130px);position:static}}:root{--nav-w: 218px}.has-nav{padding-left:var(--nav-w);transition:padding-left .3s cubic-bezier(.4,0,.2,1)}.gnav{position:fixed;top:0;left:0;bottom:0;z-index:60;width:var(--nav-w);display:flex;flex-direction:column;gap:6px;padding:16px 12px;background:#ffffffd1;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-right:1px solid var(--line, rgba(28, 27, 46, .1));transition:width .3s cubic-bezier(.4,0,.2,1);overflow:hidden}.gnav-brand{display:flex;align-items:center;gap:10px;padding:6px 8px 14px;text-decoration:none;color:var(--grape-deep, #2f2856)}.gnav-logo{width:30px;height:30px;flex:none}.gnav-word{font-family:var(--font-display, serif);font-style:italic;font-size:20px;white-space:nowrap}.gnav-items{display:flex;flex-direction:column;gap:4px}.gnav-item{display:flex;align-items:center;gap:13px;padding:11px;border-radius:12px;text-decoration:none;color:var(--ink-soft, #565472);font-weight:600;font-size:14.5px;white-space:nowrap;transition:background .15s,color .15s}.gnav-item:hover{background:var(--surface-2, rgba(75, 63, 134, .06));color:var(--ink, #1c1b2e)}.gnav-item.is-on{background:var(--grape, #4b3f86);color:#fff}.gnav-ic{width:24px;height:24px;flex:none;display:grid;place-items:center}.gnav-ic svg{width:22px;height:22px}.gnav-lb{transition:opacity .2s}.gnav-toggle{margin-top:auto;display:flex;align-items:center;gap:13px;padding:11px;border:0;background:none;cursor:pointer;color:var(--ink-soft, #565472);font-weight:600;font-size:14px;border-radius:12px}.gnav-toggle:hover{background:var(--surface-2, rgba(75, 63, 134, .06))}.gnav.is-collapsed .gnav-word,.gnav.is-collapsed .gnav-lb{opacity:0;width:0;overflow:hidden}.gnav.is-collapsed .gnav-item,.gnav.is-collapsed .gnav-toggle{justify-content:center;gap:0}.gnav.is-collapsed .gnav-brand{justify-content:center}.gfab{position:fixed;right:22px;bottom:22px;z-index:70;display:flex;flex-direction:column;align-items:flex-end;gap:12px}.gfab-btn{width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;background:var(--grape, #4b3f86);color:#fff;display:grid;place-items:center;box-shadow:0 10px 26px #4b3f8666;transition:transform .18s ease,background .18s}.gfab-btn svg{width:26px;height:26px}.gfab-btn:hover{transform:translateY(-2px) scale(1.04)}.gfab-btn.is-open{background:var(--grape-deep, #2f2856)}.gfab-panel{width:320px;max-width:calc(100vw - 44px);background:var(--card, #fff);border:1px solid var(--line, rgba(28, 27, 46, .1));border-radius:18px;box-shadow:0 16px 44px #1c1b2e2e;padding:16px;animation:gfab-in .22s cubic-bezier(.2,.9,.3,1.2)}@keyframes gfab-in{0%{opacity:0;transform:translateY(10px) scale(.96)}to{opacity:1;transform:none}}.gfab-title{font-family:var(--font-display, serif);font-size:17px;color:var(--grape-deep, #2f2856);margin-bottom:12px}.gfab-opt{width:100%;display:flex;align-items:flex-start;gap:12px;text-align:left;background:var(--paper, #faf7f1);border:1px solid var(--line, rgba(28, 27, 46, .1));border-radius:13px;padding:12px 13px;margin-bottom:9px;cursor:pointer;text-decoration:none;color:var(--ink, #1c1b2e);transition:border-color .15s,transform .12s}.gfab-opt:hover{border-color:var(--grape, #4b3f86);transform:translateY(-1px)}.gfab-opt-ic{font-size:20px;line-height:1.2;flex:none}.gfab-opt b{display:block;font-size:14.5px}.gfab-opt small{color:var(--ink-soft, #565472);font-size:12.5px;line-height:1.4}.gfab-kinds{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:10px}.gfab-kind{background:var(--paper, #faf7f1);border:1px solid var(--line, rgba(28,27,46,.1));border-radius:999px;padding:6px 13px;font-size:13px;font-weight:600;color:var(--ink-soft, #565472);cursor:pointer}.gfab-kind.is-on{background:var(--grape, #4b3f86);color:#fff;border-color:var(--grape, #4b3f86)}.gfab-text{width:100%;border:1px solid var(--line, rgba(28,27,46,.1));border-radius:12px;padding:11px 13px;font-family:var(--font-ui, sans-serif);font-size:14px;resize:vertical;outline:none}.gfab-text:focus{border-color:var(--grape, #4b3f86)}.gfab-err{color:var(--danger, #c1453b);font-size:12.5px;margin-top:6px}.gfab-actions{display:flex;justify-content:space-between;gap:8px;margin-top:12px}.gfab-ghost{background:none;border:0;color:var(--ink-soft, #565472);font-weight:600;cursor:pointer}.gfab-send{background:var(--grape, #4b3f86);color:#fff;border:0;border-radius:999px;padding:9px 20px;font-weight:700;cursor:pointer}.gfab-send:disabled{opacity:.5;cursor:default}.gfab-done{text-align:center;padding:8px 4px}.gfab-done-ic{width:46px;height:46px;margin:0 auto 8px;border-radius:50%;background:var(--marigold-soft, #f6e7c9);color:var(--ok, #2e7d57);display:grid;place-items:center;font-size:24px;font-weight:800}.gfab-done p{color:var(--ink-soft, #565472);font-size:13.5px;margin:4px 0 14px}.me-combo{position:relative;display:inline-block;min-width:220px}.me-combo-input{width:100%;font-family:inherit;font-size:12.5px;padding:6px 26px 6px 10px;border-radius:9px;border:1px solid rgba(75,63,134,.25);background:#fff;color:var(--ink, #1c1b2e);outline:none;transition:border-color .15s,box-shadow .15s}.me-combo-input:focus{border-color:var(--grape, #4b3f86);box-shadow:0 0 0 3px #4b3f861f}.me-combo-caret{position:absolute;right:9px;top:50%;transform:translateY(-50%);color:var(--grape, #4b3f86);font-size:11px;pointer-events:none}.me-combo-list{position:absolute;top:calc(100% + 5px);left:0;right:0;z-index:20;background:#fff;border:1px solid var(--line, rgba(28, 27, 46, .12));border-radius:12px;box-shadow:0 14px 36px #1c1b2e29;max-height:280px;overflow-y:auto;padding:5px;animation:gfab-in .16s ease}.me-combo-opt{width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;background:none;border:0;border-radius:9px;padding:9px 11px;font-size:13px;color:var(--ink, #1c1b2e);cursor:pointer}.me-combo-opt:hover{background:var(--surface-2, rgba(75, 63, 134, .06))}.me-combo-opt.is-on{background:var(--grape, #4b3f86);color:#fff}.me-combo-score{font-size:11.5px;opacity:.7;flex:none}.me-combo-empty{padding:10px 11px;font-size:12.5px;color:var(--ink-soft, #565472)}@media(max-width:820px){:root{--nav-w: 0px}.has-nav{padding-left:0;padding-bottom:64px}.gnav{top:auto;right:0;width:auto;height:60px;flex-direction:row;gap:0;padding:0;border-right:0;border-top:1px solid var(--line, rgba(28, 27, 46, .1))}.gnav-brand,.gnav-toggle{display:none}.gnav-items{flex-direction:row;flex:1;justify-content:space-around;align-items:center}.gnav-item{flex-direction:column;gap:3px;padding:6px 10px;border-radius:10px}.gnav-lb{opacity:1!important;width:auto!important;font-size:10.5px}.gnav-item.is-on{background:none;color:var(--grape, #4b3f86)}.gfab{bottom:74px}}