.layout[data-v-775dbffc]{min-height:100vh;display:flex;flex-direction:column}.topbar[data-v-775dbffc]{height:60px;padding:0 28px;display:flex;align-items:center;justify-content:flex-start;background:#fff;border-bottom:1px solid #e6e8ef}.nav[data-v-775dbffc]{display:flex;gap:24px;font-size:14px}.nav a[data-v-775dbffc]{color:#5b6478;text-decoration:none}.nav a.router-link-active[data-v-775dbffc]{color:#2f6bff;font-weight:600}.content[data-v-775dbffc]{flex:1;width:100%;padding:20px 24px 40px;box-sizing:border-box}.page[data-v-ddee8784]{display:grid;grid-template-columns:240px minmax(0,1fr);gap:12px;align-items:start}.sidebar[data-v-ddee8784]{position:sticky;top:20px;max-height:calc(100vh - 100px);overflow-y:auto;padding:10px;background:#fff;border:1px solid #e6e8ef;border-radius:12px}.sidebar-head[data-v-ddee8784]{display:flex;align-items:center;justify-content:space-between;padding:0 4px 8px;font-size:13px;color:#8b93a7}.link[data-v-ddee8784]{border:none;background:none;padding:0;color:#2f6bff;font-size:12px;cursor:pointer}.all[data-v-ddee8784]{width:100%;height:32px;border:none;border-radius:8px;background:#f3f5fa;color:#3c4459;font-size:13px;text-align:left;padding:0 10px;cursor:pointer}.all[data-v-ddee8784]:hover,.all.active[data-v-ddee8784]{background:#e8efff;color:#2f6bff}.tree[data-v-ddee8784],.tree ul[data-v-ddee8784]{list-style:none;margin:0;padding:0}.tree[data-v-ddee8784]{margin-top:6px}.tree ul[data-v-ddee8784]{padding-left:16px}.row[data-v-ddee8784]{display:flex;align-items:center;gap:2px;border-radius:6px;padding:1px 4px}.row[data-v-ddee8784]:hover{background:#f7f8fc}.row.active[data-v-ddee8784]{background:#e8efff}.caret[data-v-ddee8784]{flex-shrink:0;width:18px;height:26px;border:none;background:none;color:#a5adbf;font-size:11px;line-height:26px;cursor:pointer;transition:transform .15s ease}.caret.open[data-v-ddee8784]{transform:rotate(90deg)}.caret.empty[data-v-ddee8784]{display:inline-block}.label[data-v-ddee8784]{flex:1;min-width:0;height:26px;border:none;background:none;text-align:left;font-size:13px;color:#3c4459;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.label.strong[data-v-ddee8784]{font-weight:600}.label.dim[data-v-ddee8784]{color:#5b6478}.row.active .label[data-v-ddee8784]{color:#2f6bff;font-weight:600}.main[data-v-ddee8784]{display:flex;flex-direction:column;gap:10px}.hero[data-v-ddee8784]{display:flex;align-items:center;justify-content:space-between;gap:24px}.hero h1[data-v-ddee8784]{margin:0 0 3px;font-size:20px}.hero p[data-v-ddee8784]{margin:0;color:#5b6478;font-size:13px}.summary[data-v-ddee8784]{display:flex;align-items:baseline;gap:6px;padding:8px 16px;background:#fff;border:1px solid #e6e8ef;border-radius:10px;white-space:nowrap}.summary strong[data-v-ddee8784]{font-size:20px;color:#2f6bff}.summary span[data-v-ddee8784]{font-size:13px;color:#8b93a7}.search[data-v-ddee8784]{display:flex;gap:8px;padding:10px 12px;background:#fff;border:1px solid #e6e8ef;border-radius:12px}.search input[data-v-ddee8784]{flex:1;height:40px;padding:0 12px;border:1px solid #dde1ea;border-radius:8px;font-size:14px;outline:none}.search input[data-v-ddee8784]:focus{border-color:#2f6bff;box-shadow:0 0 0 3px #2f6bff1f}.primary[data-v-ddee8784]{height:40px;padding:0 24px;border:none;border-radius:8px;background:#2f6bff;color:#fff;font-size:14px;cursor:pointer}.questions[data-v-ddee8784]{display:flex;flex-direction:column;gap:8px}.question[data-v-ddee8784]{padding:12px 14px;background:#fff;border:1px solid #e6e8ef;border-radius:10px}.question-head[data-v-ddee8784]{display:flex;align-items:center;justify-content:space-between;gap:12px}.meta[data-v-ddee8784]{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.code[data-v-ddee8784]{font-size:12px;color:#8b93a7;letter-spacing:.5px}.tag[data-v-ddee8784]{font-size:12px;color:#0f9960;background:#e8f7f0;padding:2px 8px;border-radius:999px}.category[data-v-ddee8784]{font-size:12px;color:#5b6478}.index[data-v-ddee8784]{font-size:12px;color:#b6bdcc}.stem[data-v-ddee8784]{margin:8px 0;font-size:14px;font-weight:600;line-height:1.6}.options[data-v-ddee8784]{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.options li[data-v-ddee8784]{display:flex;align-items:flex-start;gap:8px;padding:7px 10px;border:1px solid #eef0f6;border-radius:8px;font-size:13px;line-height:1.5;color:#3c4459;transition:border-color .15s ease,background .15s ease}.options li .key[data-v-ddee8784]{flex-shrink:0;width:20px;height:20px;line-height:20px;text-align:center;border-radius:50%;background:#f3f5fa;color:#5b6478;font-size:12px}.options li.correct[data-v-ddee8784]{border-color:#0f9960;background:#f2fbf6}.options li.correct .key[data-v-ddee8784]{background:#0f9960;color:#fff}.ghost[data-v-ddee8784]{padding:6px 16px;border:none;border-radius:8px;background:#f3f5fa;color:#5b6478;font-size:13px;cursor:pointer}.ghost[data-v-ddee8784]:hover{background:#e8ecf7}.ghost[data-v-ddee8784]:disabled{opacity:.5;cursor:not-allowed}.answer[data-v-ddee8784]{margin-right:6px;font-weight:600;color:#0f9960}.explanation[data-v-ddee8784]{margin:8px 0 0;padding:7px 10px;background:#f8f9fc;border-radius:6px;color:#5b6478;font-size:13px;line-height:1.6}.hint[data-v-ddee8784]{margin:0;padding:16px;text-align:center;color:#8b93a7;font-size:13px;background:#fff;border:1px solid #e6e8ef;border-radius:12px}.error[data-v-ddee8784]{margin:0;color:#d92d20;font-size:13px}.pager[data-v-ddee8784]{display:flex;align-items:center;justify-content:center;gap:16px;font-size:13px;color:#5b6478}.pager .ghost[data-v-ddee8784]{padding:8px 18px}@media(max-width:840px){.page[data-v-ddee8784]{grid-template-columns:1fr}.sidebar[data-v-ddee8784]{position:static;max-height:280px}.options[data-v-ddee8784]{grid-template-columns:1fr}.hero[data-v-ddee8784]{flex-direction:column;align-items:flex-start}}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,sans-serif;background:#f5f7fb;color:#1c2434;-webkit-font-smoothing:antialiased}button{font-family:inherit}
