:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--chi-ink:#172033;--chi-muted:#5f6b7a;--chi-line:#d8e0ea;--chi-paper:#fff;--chi-bg:#f4f7f9;--chi-accent:#a22032;--chi-accent-soft:#fff0f2;--chi-ready:#176b55;--chi-held:#8a5a00}*{box-sizing:border-box}html,body{max-width:100%;overflow-x:clip}body{background:var(--chi-bg);color:var(--chi-ink);margin:0;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}.practice-shell{width:min(1180px,100%);margin:0 auto;padding:24px clamp(14px,3vw,36px) 64px}.practice-header,.practice-card,.question-card,.hold-card{background:var(--chi-paper);border:1px solid var(--chi-line);border-radius:14px;min-width:0;box-shadow:0 6px 22px #1326390d}.practice-header{border-top:5px solid var(--chi-accent);padding:clamp(18px,3vw,30px)}.practice-kicker{color:var(--chi-accent);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:800}.practice-header h1{overflow-wrap:anywhere;margin:0;font-size:clamp(1.45rem,3vw,2.2rem);line-height:1.25}.meta-row{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.pill{color:#344153;background:#edf2f7;border-radius:999px;align-items:center;min-height:30px;padding:5px 10px;font-size:.82rem;font-weight:700;display:inline-flex}.pill.ready{color:var(--chi-ready);background:#e7f6f0}.pill.held{color:var(--chi-held);background:#fff4d9}.booklet-note{color:var(--chi-muted);margin:14px 0 0;line-height:1.65}.practice-grid{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:start;gap:18px;margin-top:18px;display:grid}.catalog-grid{grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:18px;margin-top:18px;display:grid}.catalog-card{align-content:start;gap:10px;display:grid}.catalog-card h2,.catalog-card p{overflow-wrap:anywhere;margin:0}.catalog-link{background:var(--chi-accent);color:#fff;border-radius:999px;justify-self:start;align-items:center;min-height:40px;padding:0 16px;font-weight:700;text-decoration:none;display:inline-flex}.catalog-link:hover,.catalog-link:focus-visible{filter:brightness(.92)}.practice-column{gap:18px;min-width:0;display:grid}.practice-card,.question-card,.hold-card{padding:clamp(16px,2.5vw,24px)}.practice-card h2,.practice-card h3,.question-card h2,.hold-card h2{margin-top:0}.stimulus-text{white-space:pre-line;overflow-wrap:anywhere;font-family:Noto Serif SC,Songti SC,SimSun,serif;font-size:1rem;line-height:1.9}.source-figure{border:1px solid var(--chi-line);object-fit:contain;background:#f9fafb;border-radius:10px;width:100%;max-height:520px;margin:14px 0;display:block}.audio-panel audio{width:100%;margin:12px 0;display:block}.audio-sequence{color:var(--chi-muted);margin:8px 0 0;padding-left:1.3rem;line-height:1.7}.question-card{scroll-margin-top:12px}.question-card[data-availability^=held]{border-left:5px solid #d79a15}.question-heading{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:12px;display:flex}.question-heading h2{margin:0;font-size:1.1rem}.question-points{color:var(--chi-muted);white-space:nowrap;font-size:.83rem}.question-prompt{overflow-wrap:anywhere;margin:0 0 14px;line-height:1.7}.answer-input,.essay-input{width:100%;color:var(--chi-ink);font:inherit;background:#fff;border:1px solid #b9c5d2;border-radius:9px;padding:11px 12px}.answer-input:focus,.essay-input:focus{border-color:var(--chi-accent);outline:3px solid #a2203224}.essay-input{resize:vertical;min-height:340px;line-height:1.8}.choice-list{gap:9px;margin:0;padding:0;list-style:none;display:grid}.choice-list label{border:1px solid var(--chi-line);cursor:pointer;border-radius:9px;align-items:flex-start;gap:10px;padding:10px;line-height:1.55;display:flex}.choice-list input{flex:0 0 1rem;width:auto;min-width:1rem;max-width:1rem;height:1rem;min-height:1rem;margin:.3em 0 0;padding:0}.character-meter{color:var(--chi-muted);justify-content:space-between;gap:12px;margin:10px 0 0;font-size:.88rem;display:flex}.character-meter strong{color:var(--chi-accent)}.task-guidance{background:var(--chi-accent-soft);border-radius:10px;margin:14px 0 0;padding:14px}.task-guidance ul{margin-bottom:0;padding-left:1.3rem;line-height:1.65}.save-note,.loading,.error-state{text-align:center;color:var(--chi-muted);padding:36px}.hold-card{background:#fffaf0;border-left:5px solid #d79a15}.hold-card p{margin-bottom:0;line-height:1.65}.rubric-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.rubric-item{border:1px solid var(--chi-line);border-radius:9px;min-width:0;padding:12px}.rubric-item strong{margin-bottom:4px;display:block}@media (width<=840px){.practice-grid,.rubric-grid{grid-template-columns:1fr}}@media (width<=520px){.practice-shell{padding-left:10px;padding-right:10px}.practice-header,.practice-card,.question-card,.hold-card{border-radius:10px}.question-heading{align-items:flex-start}}