[data-v-151c7ee2]:root{--ground:#eef3f5;--surface:#fff;--ink:#24364c;--muted:#617287;--blue:#1676b8;--line:#dce5ec;--soft:#f5f8fa;--radius:8px;--font:"Microsoft YaHei",system-ui,sans-serif}[data-v-151c7ee2]{box-sizing:border-box}body[data-v-151c7ee2]{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.6}button[data-v-151c7ee2],input[data-v-151c7ee2],select[data-v-151c7ee2]{font:inherit}a[data-v-151c7ee2],button[data-v-151c7ee2],input[data-v-151c7ee2],select[data-v-151c7ee2]{-webkit-tap-highlight-color:transparent}a[data-v-151c7ee2],button[data-v-151c7ee2]{touch-action:manipulation}button[data-v-151c7ee2]{cursor:pointer}a[data-v-151c7ee2]{color:inherit;text-decoration:none}button[data-v-151c7ee2]:disabled{cursor:default}button[data-v-151c7ee2]{color:inherit}a[data-v-151c7ee2]:focus-visible,button[data-v-151c7ee2]:focus-visible,input[data-v-151c7ee2]:focus-visible,select[data-v-151c7ee2]:focus-visible{outline:3px solid #1676b8;outline-offset:3px}main[data-v-151c7ee2]:focus{outline:none}h1[data-v-151c7ee2],h2[data-v-151c7ee2],h3[data-v-151c7ee2],p[data-v-151c7ee2]{margin:0}h1[data-v-151c7ee2]{font-size:26px;line-height:1.45;font-weight:600}h2[data-v-151c7ee2]{font-size:18px;line-height:1.5;font-weight:600}h3[data-v-151c7ee2]{font-size:22px;line-height:1.5;font-weight:600}p[data-v-151c7ee2]{color:var(--muted)}.icon[data-v-151c7ee2]{width:18px;height:18px;flex:none;vertical-align:middle}.small[data-v-151c7ee2],small[data-v-151c7ee2]{font-size:12px}.muted[data-v-151c7ee2]{color:var(--muted)}[v-cloak][data-v-151c7ee2]{display:none}.preview-toolbar[data-v-151c7ee2]{min-height:40px;padding:7px max(24px,calc(50% - 660px));display:flex;align-items:center;justify-content:space-between;gap:12px;background:#e1eaf0;color:#3d5167;font-size:12px}.preview-toolbar strong[data-v-151c7ee2]{font-weight:600}.preview-description[data-v-151c7ee2]{margin-left:16px}.preview-toolbar label[data-v-151c7ee2]{display:flex;align-items:center;gap:8px;white-space:nowrap}.preview-toolbar select[data-v-151c7ee2]{height:28px;font-size:12px;max-width:160px;background:#fff;border:1px solid #b9c9d6;border-radius:4px;color:var(--ink)}.site-header[data-v-151c7ee2]{height:72px;padding:0 max(24px,calc(50% - 660px));display:flex;align-items:center;background:#181b21;color:#d7e1ec;gap:48px}.wordmark[data-v-151c7ee2]{font-size:27px;font-weight:500;letter-spacing:1px;display:flex;align-items:center}.wordmark b[data-v-151c7ee2]{color:#a6c2d9;font-weight:600}.wordmark span[data-v-151c7ee2]{font-size:13px;border-left:1px solid #465160;margin-left:14px;padding-left:14px;letter-spacing:1px}.site-header nav[data-v-151c7ee2]{display:flex;align-self:stretch;gap:30px;align-items:center}.site-header nav a[data-v-151c7ee2]{height:100%;display:flex;align-items:center;position:relative;color:#c7d0db}.site-header nav a[aria-current=page][data-v-151c7ee2]{color:#fff}.site-header nav a[aria-current=page][data-v-151c7ee2]:after{content:"";position:absolute;bottom:0;height:3px;left:0;right:0;background:#a6c2d9}.account[data-v-151c7ee2]{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:13px}.canvas[data-v-151c7ee2]{width:min(1100px,calc(100% - 48px));margin:0 auto;min-height:calc(100vh - 200px);padding:26px 0 40px}.home-canvas[data-v-151c7ee2]{width:min(1320px,calc(100% - 48px))}.breadcrumb[data-v-151c7ee2]{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px;margin:0 0 28px}.breadcrumb .icon[data-v-151c7ee2]{width:12px;height:12px}.breadcrumb a[data-v-151c7ee2]:hover{text-decoration:underline}.page-heading[data-v-151c7ee2]{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:26px}.page-heading p[data-v-151c7ee2]{margin-top:7px}.text-button[data-v-151c7ee2]{padding:0;border:0;background:transparent;color:var(--blue);font-size:13px;display:inline-flex;gap:7px;align-items:center}.text-button[data-v-151c7ee2]:hover{text-decoration:underline}.primary[data-v-151c7ee2],.secondary[data-v-151c7ee2]{min-height:40px;padding:9px 17px;border-radius:5px;display:inline-flex;align-items:center;justify-content:center;gap:22px;white-space:nowrap;font-size:13px}.primary[data-v-151c7ee2]{border:1px solid var(--blue);background:var(--blue);color:#fff}.primary[data-v-151c7ee2]:hover{background:#12679f}.secondary[data-v-151c7ee2]{border:1px solid #bdcddd;background:#fff;color:#245e87}.secondary[data-v-151c7ee2]:hover{border-color:var(--blue);background:#f5f9fc}.full[data-v-151c7ee2]{width:100%}.panel[data-v-151c7ee2]{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}.context-heading[data-v-151c7ee2]{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:24px}.context-heading h1[data-v-151c7ee2]{font-size:24px}.context-heading p[data-v-151c7ee2]{font-size:12px}.home-layout[data-v-151c7ee2]{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:24px;align-items:start}.home-main[data-v-151c7ee2]{min-width:0;display:grid;gap:24px}.galaxy-reference[data-v-151c7ee2]{margin:0;position:relative;aspect-ratio:1226/520;overflow:hidden;border-radius:16px;background:#0d192e}.galaxy-reference img[data-v-151c7ee2]{position:absolute;width:154.8939%;max-width:none;left:-4.9755%;bottom:0;transform:translateY(40%)}.galaxy-reference figcaption[data-v-151c7ee2]{position:absolute;left:18px;top:15px;background:#122034;padding:3px 8px;border-radius:4px;color:#bed0e3;font-size:11px}.classroom-entry[data-v-151c7ee2]{background:#fff;border:1px solid #cddfe9;border-radius:8px;padding:26px 28px 0;overflow:hidden}.entry-heading[data-v-151c7ee2],.entry-title[data-v-151c7ee2]{display:flex;align-items:center;gap:10px}.entry-heading[data-v-151c7ee2]{justify-content:space-between;margin-bottom:22px}.entry-title .icon[data-v-151c7ee2]{color:#356487;width:22px;height:22px}.entry-title h2[data-v-151c7ee2]{font-size:21px}.entry-body[data-v-151c7ee2]{display:flex;align-items:center;justify-content:space-between;gap:24px}.entry-body p[data-v-151c7ee2]{margin-top:8px;font-size:13px}.entry-body .primary[data-v-151c7ee2]{min-height:44px}.entry-foot[data-v-151c7ee2]{display:flex;justify-content:space-between;gap:16px;margin-top:27px;padding:14px 0;border-top:1px solid #e4ebf1;color:var(--muted);font-size:12px}.status-dot[data-v-151c7ee2]{display:inline-block;width:6px;height:6px;border-radius:50%;background:#347657;vertical-align:2px;margin-right:8px}.context-sidebar[data-v-151c7ee2]{display:grid;gap:24px}.reference-notice h2[data-v-151c7ee2],.reference-ranking h2[data-v-151c7ee2]{margin-bottom:14px}.reference-notice p[data-v-151c7ee2]{font-size:13px;line-height:1.8;padding:11px 0;border-bottom:1px solid #edf1f5;color:#315a7c}.reference-notice small[data-v-151c7ee2]{display:block;margin-top:12px;color:var(--muted)}.reference-tabs[data-v-151c7ee2]{color:var(--blue);padding-bottom:12px;border-bottom:1px solid var(--line)}.reference-tabs span[data-v-151c7ee2]{color:var(--muted);margin-left:18px}.reference-ranking>p[data-v-151c7ee2]{margin:12px 0}.reference-row[data-v-151c7ee2]{display:grid;grid-template-columns:20px 1fr auto;gap:12px;align-items:center;min-height:48px;border-bottom:1px solid #edf1f5;font-size:13px}.reference-row>span[data-v-151c7ee2]:first-child{color:var(--muted)}.reference-tier[data-v-151c7ee2]{font-size:11px;color:#556f85}.reference-note[data-v-151c7ee2]{font-size:12px;margin-top:16px;color:var(--muted)}.classroom-grid[data-v-151c7ee2]{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:24px;align-items:start}.course-area[data-v-151c7ee2]{min-width:0}.tabs[data-v-151c7ee2]{display:flex;gap:28px;border-bottom:1px solid #cdd8e2;height:43px}.tabs button[data-v-151c7ee2]{border:0;background:none;padding:0 0 12px;position:relative;font-size:15px;color:var(--muted)}.tabs button[aria-selected=true][data-v-151c7ee2]{color:var(--ink);font-weight:600}.tabs button[aria-selected=true][data-v-151c7ee2]:after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--ink);bottom:-1px}.tabs span[data-v-151c7ee2]{font-size:12px;margin-left:5px;font-weight:400}.filterbar[data-v-151c7ee2]{display:flex;gap:12px;margin:20px 0}.search[data-v-151c7ee2]{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid #c6d2de;border-radius:5px;padding:0 11px;min-width:0;flex:1;height:36px;color:var(--muted)}.search input[data-v-151c7ee2]{width:100%;min-width:0;outline:0;border:0;background:none;color:var(--ink);font-size:13px}.search input[data-v-151c7ee2]::-moz-placeholder{color:var(--muted)}.search input[data-v-151c7ee2]:-ms-input-placeholder{color:var(--muted)}.search input[data-v-151c7ee2]::placeholder{color:var(--muted)}.filterbar>select[data-v-151c7ee2]{border:1px solid #c6d2de;background:#fff;height:36px;border-radius:5px;color:var(--ink);padding:0 9px;font-size:13px;max-width:140px}.course-card[data-v-151c7ee2]{background:#fff;border:1px solid var(--line);border-radius:8px;padding:23px 26px;margin-bottom:18px}.course-top[data-v-151c7ee2]{display:flex;justify-content:space-between;align-items:center;gap:16px}.course-category[data-v-151c7ee2]{color:var(--muted);font-size:12px}.status[data-v-151c7ee2]{display:inline-flex;align-items:center;gap:5px;font-size:12px;white-space:nowrap;flex:none;color:#5e6d7c;background:#f0f3f6;border-radius:4px;padding:2px 7px}.status .icon[data-v-151c7ee2]{width:13px;height:13px}.status.unlocked[data-v-151c7ee2]{color:#246645;background:#edf6f0}.course-identity[data-v-151c7ee2]{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:16px 0 20px}.course-identity h2[data-v-151c7ee2]{font-size:22px}.course-identity p[data-v-151c7ee2]{font-size:13px;margin-top:5px}.course-code[data-v-151c7ee2]{font-size:24px;font-weight:400;color:#607a93;font-family:Consolas,monospace;white-space:nowrap}.progress-caption[data-v-151c7ee2]{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:7px}.progress-caption b[data-v-151c7ee2]{font-size:14px;color:var(--ink);font-weight:400}progress[data-v-151c7ee2]{width:100%;height:4px;display:block;border:none;background:#e8eef3;border-radius:5px;overflow:hidden;accent-color:#337ba8}progress[data-v-151c7ee2]::-webkit-progress-bar{background:#e8eef3}progress[data-v-151c7ee2]::-webkit-progress-value{background:#337ba8}progress[data-v-151c7ee2]::-moz-progress-bar{background:#337ba8}.course-bottom[data-v-151c7ee2]{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}.course-bottom small[data-v-151c7ee2]{color:var(--muted)}.course-bottom p[data-v-151c7ee2]{color:var(--ink);margin-top:2px;font-size:14px}.course-bottom .secondary[data-v-151c7ee2]{min-height:36px;padding:7px 14px}.course-aside[data-v-151c7ee2]{display:grid;gap:24px;padding-top:63px}.course-aside h2[data-v-151c7ee2]{font-size:16px}.next-lesson>p[data-v-151c7ee2]{margin-top:9px}.next-progress[data-v-151c7ee2]{margin:22px 0 20px;font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}.next-progress>span[data-v-151c7ee2]:first-child{color:var(--ink);font-size:28px}.binding-note ol[data-v-151c7ee2]{margin:21px 0;padding:0;list-style:none;display:grid;gap:20px}.binding-note li[data-v-151c7ee2]{display:flex;gap:14px;font-size:13px}.binding-note li>span[data-v-151c7ee2]{font-size:12px;color:var(--muted);padding-top:1px}.binding-note li p[data-v-151c7ee2]{font-size:12px;margin-top:3px}.list-note[data-v-151c7ee2]{font-size:12px;margin-top:18px}.locked-course[data-v-151c7ee2]{border-top:1px solid #edf1f5;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:16px}.locked-course p[data-v-151c7ee2]{font-size:12px;display:flex;align-items:center;gap:8px}.locked-course .icon[data-v-151c7ee2]{width:14px;height:14px}.empty-list[data-v-151c7ee2]{padding:40px 28px}.empty-list p[data-v-151c7ee2]{margin:12px 0 20px;font-size:13px}.empty-page[data-v-151c7ee2]{text-align:center;max-width:780px;margin:50px auto;padding:70px 32px}.empty-page>.icon[data-v-151c7ee2]{width:32px;height:32px;color:#50738d;margin-bottom:20px}.empty-page p[data-v-151c7ee2]{margin:14px auto 28px;max-width:520px}.empty-page .text-button[data-v-151c7ee2]{display:table;margin:20px auto 0}.loading-line[data-v-151c7ee2]{height:5px;width:160px;background:#d7e3ec;margin:24px auto;border-radius:5px}.course-title-line[data-v-151c7ee2]{display:flex;align-items:center;gap:15px}.course-heading[data-v-151c7ee2]{align-items:flex-end}.detail-progress[data-v-151c7ee2]{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}.detail-progress b[data-v-151c7ee2]{color:var(--ink);font-size:26px;font-weight:400}.dot-separator[data-v-151c7ee2]{margin:0 10px}.learning-layout[data-v-151c7ee2]{display:grid;grid-template-columns:266px minmax(0,1fr);gap:24px;align-items:start}.syllabus[data-v-151c7ee2]{padding:22px 18px}.syllabus h2[data-v-151c7ee2]{font-size:16px}.syllabus>p[data-v-151c7ee2]{margin-top:7px;margin-bottom:24px}.unit-block[data-v-151c7ee2]{margin-bottom:10px}.unit-button[data-v-151c7ee2]{display:flex;align-items:center;gap:10px;width:100%;padding:12px 4px;border:0;background:none;text-align:left;font-size:13px}.unit-index[data-v-151c7ee2]{color:#667d91;font-size:12px;font-variant-numeric:tabular-nums}.unit-button>.icon[data-v-151c7ee2]{width:13px;height:13px;margin-left:auto}.unit-button[aria-expanded=true]>.icon[data-v-151c7ee2]{transform:rotate(90deg)}.lesson-links[data-v-151c7ee2]{display:grid;gap:4px;margin:4px 0 12px}.lesson-links button[data-v-151c7ee2]{display:flex;align-items:center;gap:10px;border:0;background:none;padding:10px 12px;text-align:left;font-size:12px;min-height:40px;border-radius:5px}.lesson-links button[aria-current=step][data-v-151c7ee2]{background:#edf2f5;color:#1e5277;font-weight:600}.lesson-links button[data-v-151c7ee2]:hover{background:#f3f6f8}.lesson-links .icon[data-v-151c7ee2]{width:14px;height:14px;color:#2a7250}.lesson-circle[data-v-151c7ee2]{display:inline-block;width:7px;height:7px;border:1px solid #7e8b97;border-radius:50%;flex:none;margin:0 3.5px}.lesson-panel[data-v-151c7ee2]{padding:26px;min-width:0}.lesson-header[data-v-151c7ee2]{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:24px}.lesson-header h2[data-v-151c7ee2]{font-size:24px;margin:6px 0 10px}.lesson-header p[data-v-151c7ee2]{font-size:12px}.lesson-total[data-v-151c7ee2]{text-align:right;white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}.lesson-total b[data-v-151c7ee2]{font-size:30px;font-weight:400;color:var(--ink)}.lesson-total small[data-v-151c7ee2]{display:block;margin-top:1px}.lesson-filters[data-v-151c7ee2]{display:flex;flex-wrap:wrap;gap:7px;padding:17px 0;border-top:1px solid #e6ecf1}.lesson-filters button[data-v-151c7ee2]{min-height:32px;font-size:12px;border:0;background:none;border-radius:4px;padding:5px 10px;color:var(--muted)}.lesson-filters button[aria-pressed=true][data-v-151c7ee2]{background:#eef2f5;color:var(--ink)}.problem-columns[data-v-151c7ee2],.problem-row[data-v-151c7ee2]{display:grid;grid-template-columns:minmax(0,1fr) 86px 70px 100px;align-items:center;gap:12px}.problem-columns[data-v-151c7ee2]{font-size:12px;color:var(--muted);padding:10px 0}.problem-columns>span[data-v-151c7ee2]:last-child{text-align:right}.problem-row[data-v-151c7ee2]{border-top:1px solid #e8eef2;min-height:66px;font-size:12px}.problem-name[data-v-151c7ee2]{display:flex;align-items:center;gap:16px;min-width:0}.problem-number[data-v-151c7ee2]{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;width:12px;text-align:right;flex:none}.problem-name button[data-v-151c7ee2]{border:0;background:none;padding:5px 0;font-size:13px;color:var(--ink);text-align:left}.problem-name button[data-v-151c7ee2]:hover{color:var(--blue);text-decoration:underline}.problem-kind[data-v-151c7ee2],.problem-status[data-v-151c7ee2]{color:var(--muted)}.problem-status.accepted[data-v-151c7ee2]{color:#28704d}.problem-status.attempted[data-v-151c7ee2]{color:#8a601b}.problem-action[data-v-151c7ee2]{border:0;background:none;padding:8px 0;color:#23648e;font-size:12px;display:flex;justify-content:flex-end;align-items:center;gap:7px}.problem-action .icon[data-v-151c7ee2]{width:14px;height:14px}.mobile-meta[data-v-151c7ee2]{display:none}.lesson-foot[data-v-151c7ee2]{display:flex;justify-content:space-between;gap:16px;border-top:1px solid #e8eef2;margin-top:6px;padding-top:18px;font-size:12px;color:var(--muted)}.lesson-foot .icon[data-v-151c7ee2]{width:13px;height:13px;margin-right:4px}.empty-problems[data-v-151c7ee2]{font-size:13px;padding:36px 10px}.site-footer[data-v-151c7ee2]{display:flex;justify-content:space-between;gap:20px;width:min(1320px,calc(100% - 48px));margin:0 auto;padding:24px 0;border-top:1px solid #dce5ec;color:var(--muted);font-size:12px}.modal-backdrop[data-v-151c7ee2]{position:fixed;inset:0;background:rgba(24,37,53,.4);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}.modal[data-v-151c7ee2]{position:relative;width:min(460px,100%);background:#fff;border-radius:10px;padding:32px;box-shadow:0 18px 60px rgba(29,48,69,.2)}.modal>.icon[data-v-151c7ee2]{width:27px;height:27px;color:#3b698a;margin-bottom:14px}.modal h2[data-v-151c7ee2]{font-size:21px;margin-right:20px;margin-bottom:18px}.modal>p[data-v-151c7ee2]{font-size:14px;line-height:1.85}.modal>.status[data-v-151c7ee2]{margin-bottom:12px}.help-tip[data-v-151c7ee2]{background:#f2f6f8;padding:15px;margin:21px 0;color:#53677b;font-size:13px;line-height:1.8;border-radius:5px}.close-button[data-v-151c7ee2]{position:absolute;top:12px;right:12px;background:none;border:0;font-size:25px;line-height:36px;width:36px;height:36px;color:var(--muted)}@media(max-width:1100px){.entry-body[data-v-151c7ee2]{align-items:flex-start;flex-direction:column;gap:20px}.entry-foot[data-v-151c7ee2]{flex-wrap:wrap;gap:7px}.context-heading[data-v-151c7ee2]{align-items:flex-start;flex-direction:column;gap:6px}.classroom-grid[data-v-151c7ee2]{grid-template-columns:minmax(0,1.7fr) minmax(260px,1fr)}.learning-layout[data-v-151c7ee2]{grid-template-columns:230px minmax(0,1fr);gap:18px}.problem-columns[data-v-151c7ee2],.problem-row[data-v-151c7ee2]{grid-template-columns:minmax(0,1fr) 60px 90px}.problem-columns>span[data-v-151c7ee2]:nth-child(2),.problem-kind[data-v-151c7ee2]{display:none}.mobile-meta[data-v-151c7ee2]{display:block;font-size:11px;color:var(--muted)}.course-code[data-v-151c7ee2],.course-identity h2[data-v-151c7ee2]{font-size:20px}.lesson-panel[data-v-151c7ee2]{padding:20px}}@media(max-width:800px){.site-header[data-v-151c7ee2]{gap:24px;padding:0 24px}.wordmark span[data-v-151c7ee2]{display:none}.classroom-grid[data-v-151c7ee2],.home-layout[data-v-151c7ee2]{grid-template-columns:minmax(0,1fr)}.context-sidebar[data-v-151c7ee2]{display:none}.entry-body[data-v-151c7ee2]{flex-direction:row;align-items:center}.entry-foot[data-v-151c7ee2]{flex-wrap:nowrap}.classroom-grid[data-v-151c7ee2]{gap:24px}.course-aside[data-v-151c7ee2]{padding-top:0;grid-template-columns:1fr 1fr;align-items:start}.page-heading[data-v-151c7ee2]{align-items:flex-start;gap:14px}.learning-layout[data-v-151c7ee2]{grid-template-columns:190px minmax(0,1fr);gap:16px}.lesson-header[data-v-151c7ee2]{align-items:flex-start}.lesson-header h2[data-v-151c7ee2]{font-size:21px}.lesson-header>div>p[data-v-151c7ee2]:last-child{max-width:240px}.lesson-filters[data-v-151c7ee2]{gap:3px}.lesson-filters button[data-v-151c7ee2]{padding:5px 7px}.problem-columns[data-v-151c7ee2],.problem-row[data-v-151c7ee2]{grid-template-columns:minmax(0,1fr) 55px 30px;gap:8px}.problem-action[data-v-151c7ee2]{font-size:0}.problem-action .icon[data-v-151c7ee2]{width:18px;height:18px}.syllabus[data-v-151c7ee2]{padding:20px 13px}.unit-button[data-v-151c7ee2]{gap:7px}.lesson-links button[data-v-151c7ee2]{padding:10px 7px}.lesson-foot[data-v-151c7ee2]{flex-wrap:wrap;gap:7px}.course-heading[data-v-151c7ee2]{align-items:flex-start}.detail-progress[data-v-151c7ee2]{padding-top:5px}}@media(max-width:600px){.preview-toolbar[data-v-151c7ee2]{padding:8px 16px;font-size:11px;gap:8px}.preview-description[data-v-151c7ee2]{display:none}.preview-toolbar select[data-v-151c7ee2]{font-size:11px;max-width:125px}.site-header[data-v-151c7ee2]{height:60px;padding:0 16px;gap:24px}.wordmark[data-v-151c7ee2]{font-size:23px}.site-header nav[data-v-151c7ee2]{gap:22px;font-size:13px}.account .icon[data-v-151c7ee2]{display:none}.account[data-v-151c7ee2]{font-size:11px}.canvas[data-v-151c7ee2],.home-canvas[data-v-151c7ee2]{width:calc(100% - 32px);padding:22px 0 30px}.context-heading h1[data-v-151c7ee2]{font-size:21px}.galaxy-reference[data-v-151c7ee2]{aspect-ratio:1226/560;border-radius:10px}.galaxy-reference figcaption[data-v-151c7ee2]{font-size:11px;top:11px;left:11px}.home-main[data-v-151c7ee2]{gap:18px}.classroom-entry[data-v-151c7ee2]{padding:21px 20px 0}.entry-heading[data-v-151c7ee2]{margin-bottom:22px;gap:6px}.entry-title h2[data-v-151c7ee2]{font-size:20px}.entry-heading>.small[data-v-151c7ee2]{font-size:11px}.entry-body[data-v-151c7ee2]{flex-direction:column;align-items:stretch;gap:22px}.entry-body h3[data-v-151c7ee2]{font-size:21px}.entry-body p[data-v-151c7ee2]{font-size:12px}.entry-body .primary[data-v-151c7ee2]{align-self:flex-start;min-height:44px}.entry-foot[data-v-151c7ee2]{flex-direction:column;gap:7px;margin-top:24px;padding:14px 0;font-size:11px}.page-heading[data-v-151c7ee2]{flex-direction:column;gap:13px;margin-bottom:22px}.page-heading h1[data-v-151c7ee2]{font-size:24px}.page-heading p[data-v-151c7ee2]{font-size:13px}.breadcrumb[data-v-151c7ee2]{margin-bottom:20px;font-size:11px;gap:6px}.course-card[data-v-151c7ee2]{padding:22px 20px}.course-identity h2[data-v-151c7ee2]{font-size:20px}.course-code[data-v-151c7ee2]{font-size:18px}.course-identity[data-v-151c7ee2]{gap:10px}.course-identity p[data-v-151c7ee2]{font-size:12px}.course-aside[data-v-151c7ee2]{grid-template-columns:1fr}.binding-note[data-v-151c7ee2]{padding:22px}.binding-note ol[data-v-151c7ee2]{gap:16px}.course-bottom .secondary[data-v-151c7ee2]{min-height:44px}.filterbar[data-v-151c7ee2]{margin:18px 0}.filterbar>select[data-v-151c7ee2]{width:115px}.filterbar input[data-v-151c7ee2]{font-size:12px}.locked-course[data-v-151c7ee2]{align-items:flex-start;flex-direction:column}.list-note[data-v-151c7ee2]{line-height:1.85}.learning-layout[data-v-151c7ee2]{grid-template-columns:1fr}.syllabus[data-v-151c7ee2]{padding:18px}.syllabus>p[data-v-151c7ee2]{margin-bottom:14px}.unit-block[data-v-151c7ee2]{margin-bottom:4px}.unit-button[data-v-151c7ee2]{min-height:44px}.lesson-links[data-v-151c7ee2]{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 10px}.lesson-links button[data-v-151c7ee2]{padding:7px 9px;min-height:40px;border:1px solid #e5ecf2}.course-heading[data-v-151c7ee2]{gap:9px}.course-title-line[data-v-151c7ee2]{gap:10px}.detail-progress b[data-v-151c7ee2]{font-size:20px}.lesson-panel[data-v-151c7ee2]{padding:20px 18px}.lesson-header[data-v-151c7ee2]{gap:12px}.lesson-header h2[data-v-151c7ee2]{font-size:22px}.lesson-header p[data-v-151c7ee2]:last-child{font-size:12px}.lesson-total b[data-v-151c7ee2]{font-size:25px}.lesson-total[data-v-151c7ee2]{font-size:12px;padding-top:25px}.lesson-filters[data-v-151c7ee2]{gap:5px}.lesson-filters button[data-v-151c7ee2]{min-height:40px;padding:5px 8px}.problem-row[data-v-151c7ee2]{min-height:76px}.problem-columns[data-v-151c7ee2],.problem-row[data-v-151c7ee2]{grid-template-columns:minmax(0,1fr) 50px 28px}.problem-name[data-v-151c7ee2]{gap:11px}.problem-name button[data-v-151c7ee2]{font-size:13px}.problem-status[data-v-151c7ee2]{font-size:11px}.problem-action[data-v-151c7ee2]{min-height:44px}.empty-page[data-v-151c7ee2]{padding:44px 23px;margin:24px auto}.empty-page h1[data-v-151c7ee2]{font-size:23px}.empty-page p[data-v-151c7ee2]{font-size:13px}.site-footer[data-v-151c7ee2]{width:calc(100% - 32px);flex-direction:column;gap:7px;font-size:11px;padding:20px 0}.modal[data-v-151c7ee2]{padding:28px 24px}.modal h2[data-v-151c7ee2]{font-size:20px}.modal>p[data-v-151c7ee2]{font-size:13px}.modal .primary[data-v-151c7ee2]{min-height:44px}}@media(prefers-reduced-motion:reduce){[data-v-151c7ee2]{scroll-behavior:auto!important}}html[data-v-151c7ee2]{scrollbar-gutter:stable}.syllabus-heading[data-v-151c7ee2]{display:flex;justify-content:space-between;gap:12px;align-items:center}.syllabus-toggle[data-v-151c7ee2]{display:none}@media(max-width:600px){.syllabus-toggle[data-v-151c7ee2]{display:inline-flex;min-height:32px}.syllabus:not(.expanded) .unit-block[data-v-151c7ee2]:not(.current){display:none}}.qd-classroom[data-v-151c7ee2]{--ground:#eef3f5;--surface:#fff;--ink:#24364c;--muted:#617287;--blue:#1676b8;--line:#dce5ec;--soft:#f5f8fa;--radius:8px;--font:"Microsoft YaHei",system-ui,sans-serif;font-family:var(--font);color:var(--ink);line-height:1.6;min-height:500px}.qd-classroom .empty-list[data-v-151c7ee2]{min-height:230px}.qd-classroom-help{max-width:calc(100vw - 32px)}.qd-classroom-help-copy{line-height:1.9;color:#53677b;margin:0 0 14px;font-size:14px}