:root{--alice-bg:#e8f3ff;--alice-border:#9bc9ff;--alice-text:#174d95;--alice-header-bg:#c7e2ff;--alice-header-text:#123e73;--bob-bg:#e8f7e8;--bob-border:#a9dca7;--bob-text:#166534;--bob-header-bg:#c8edc7;--bob-header-text:#14532d;--shared-bg:#fff4d8;--shared-border:#f4c96c;--shared-text:#9a5a00;--shared-header-bg:#ffe4a3;--shared-header-text:#8a4b00;--axis-line-color:#d02020;--axis-dot-color:#1040c0;--axis-dot-shape:0;--line:#d9dee8;--muted:#687385;--text:#1f2937;color:var(--text);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f7f8fb;font-family:Inter,Microsoft YaHei,PingFang SC,Hiragino Sans GB,Arial,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}.app-shell{min-height:100vh;font-family:var(--app-font-family,Inter, "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif);padding:24px 20px 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#7890ad;border-radius:999px;width:10px;height:10px;position:absolute;top:-5px;left:14px;box-shadow:0 0 0 3px #edf3fb}.time-mark--terminal{min-height:0}.time-mark--terminal strong{top:-12px}.time-mark--terminal:before{top:-4px}.day-timeline{--row-height:8px;--hour-height:96px;border-right:1px solid var(--line);background:linear-gradient(90deg,#fff,#fbfdff);border-bottom:1px solid #cbd5e1;grid-template-columns:repeat(2,minmax(0,1fr));padding-bottom:28px;display:grid;position:relative}.day-timeline:before{z-index:0;pointer-events:none;content:"";background:repeating-linear-gradient(to bottom, transparent 0, transparent calc(var(--hour-height) - 2px), #9aa8bd calc(var(--hour-height) - 2px), #9aa8bd var(--hour-height)), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='8' viewBox='0 0 24 8'%3E%3Cpath d='M0 7.5H24' stroke='%23e1e7f0' stroke-width='1' stroke-dasharray='3 4'/%3E%3C/svg%3E"), repeating-linear-gradient(to bottom, transparent 0, transparent 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#3b82f640}.course-card--alice{border-color:var(--alice-border);background:var(--alice-bg);color:var(--alice-text)}.course-card--bob{border-color:var(--bob-border);background:var(--bob-bg);color:var(--bob-text)}.course-card--shared{border-color:var(--shared-border);background:var(--shared-bg);color:var(--shared-text)}.course-card--activity{border-color:var(--activity-border);background:var(--activity-bg);color:var(--activity-text)}.course-card--compact{--course-line-height:1.18;gap:calc(2px * var(--course-scale));padding:calc(5px * var(--course-scale)) calc(6px * var(--course-scale))}.course-card__title-row{justify-content:center;align-items:center;gap:calc(5px * var(--course-scale));flex-wrap:wrap;max-width:100%;display:flex}.course-card h3{overflow-wrap:anywhere;max-width:100%;font-size:calc(16px * var(--course-scale));line-height:var(--course-line-height)}.course-card p{color:currentColor;overflow-wrap:anywhere;font-size:calc(13.5px * 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