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.calendar-date{color:var(--ink-soft)}.outside-month .calendar-date-number{opacity:.65}.calendar-dots{display:flex;flex-wrap:wrap;justify-content:center;align-content:flex-start;gap:3px;max-width:70px;min-height:9px}.calendar-dots .subject-dot{width:7px;height:7px;flex-basis:7px}.calendar-more{color:var(--ink-soft);font-size:10px;line-height:10px}.calendar-due-count,.calendar-course-count{color:var(--ink-soft);font-size:10px;line-height:1.2}.calendar-day{min-width:0;padding-left:22px;border-left:1px solid var(--line)}.calendar-day>h3{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin:0 0 10px;font-family:var(--font-calendar-date);font-size:27px;font-weight:500}.calendar-weekday{font-size:20px}.calendar-today-label{color:var(--teal-dark);font-family:inherit;font-size:12px}.calendar-day-events{display:grid;gap:10px;max-height:760px;overflow-y:auto;padding:3px 6px 3px 3px;scrollbar-gutter:stable}.calendar-event{padding:14px;border:1px solid var(--line);border-radius:11px;background:var(--paper);min-width:0}.calendar-event-head{display:flex;gap:8px;justify-content:space-between;align-items:center;flex-wrap:wrap}.calendar-event-kind{color:var(--ink-soft);font-size:11px;font-weight:700}.calendar-event :is(h3,h4){margin:10px 0 7px;color:var(--ink);font-size:16px;line-height:1.6;overflow-wrap:anywhere}.calendar-event-time{margin:0;color:var(--ink-soft);font-size:13px;font-variant-numeric:tabular-nums}.calendar-event-detail{margin:7px 0 0;color:var(--ink-soft);font-size:12px;overflow-wrap:anywhere}.calendar-event>.text-button{display:block;margin:10px 0 0 auto}.calendar-event.is-overdue{border-left:3px solid var(--status-overdue)}.calendar-event.course-unconfirmed{border-style:dashed}.calendar-course{padding:14px 15px 10px;border-left:3px solid var(--subject-outline, var(--subject-fill, var(--subject-unknown)));border-radius:8px}.calendar-course.subject-planning{background:var(--service-planning-surface)}.calendar-course-body{display:flex;align-items:flex-start;gap:11px}.calendar-course-body>.subject-dot{margin-top:5px;width:13px;height:13px;flex-basis:13px}.calendar-course-copy{min-width:0;flex:1}.calendar-course .calendar-course-time{color:var(--ink);font-size:19px;line-height:1.3;font-weight:600}.calendar-course h3{margin:5px 0 3px;font-size:17px;line-height:1.45}.calendar-course-labels{display:flex;flex-wrap:wrap;align-items:center;gap:8px;min-height:20px}.calendar-course-subject{color:var(--ink-soft);font-size:11px}.course-service-tag{display:inline-flex;padding:2px 7px;border:1px solid var(--service-planning);border-radius:4px;color:var(--ink);font-size:11px;line-height:1.45}.calendar-course .calendar-event-detail{margin:4px 0 0;font-size:13px;line-height:1.6}.calendar-course .calendar-course-location,.calendar-course .calendar-course-unmapped{font-size:11px}.calendar-course-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:5px 12px;margin-top:5px}.calendar-course-actions .text-button{font-size:11px;font-weight:500}.calendar-course-link{display:inline-flex;align-items:center;gap:5px;min-height:32px;padding:4px 2px;color:var(--subject-toefl-writing);font-size:13px;line-height:1.5;font-weight:650;text-decoration:none;cursor:pointer;border-radius:4px}.calendar-course-link:hover{text-decoration:underline;text-underline-offset:4px}.calendar-course-link:active{color:var(--ink)}.calendar-course-link:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.calendar-event-status-detail{margin:10px 0 0;padding:9px 10px;background:var(--canvas);border-radius:7px;color:var(--ink-soft);font-size:12px;line-height:1.7}.calendar-exception-count{color:var(--ink-soft);font-size:10px;line-height:1.3;text-decoration:underline dotted;text-underline-offset:3px}.calendar-day-summary{margin:0 0 10px;color:var(--ink-soft);font-size:13px;line-height:1.7}.calendar-summary-exceptions{display:block;margin-top:3px;font-size:12px}.calendar-day-help{margin:11px 0 8px;color:var(--ink-soft);font-size:12px;line-height:1.7}.calendar-day-state{min-height:280px;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--ink-soft);font-size:13px}.calendar-assignment-disclosure{margin-top:6px;border-top:1px solid var(--line)}.calendar-assignment-disclosure>summary{min-height:44px;padding:13px 6px;color:var(--ink-soft);font-size:13px;font-weight:650;line-height:1.5;cursor:pointer;border-radius:6px}.calendar-assignment-disclosure>summary:hover{background:var(--teal-pale);color:var(--ink)}.calendar-assignment-disclosure>summary:active{color:var(--teal-dark)}.calendar-assignment-disclosure>summary:focus-visible{outline:3px solid var(--teal);outline-offset:2px}.calendar-disclosed-assignments{display:grid;gap:10px;padding:5px 0 3px}.overdue-label{color:var(--status-overdue)}.calendar-source-list{margin:0}.calendar-source-notice{margin:8px 0 0;padding:8px 10px;background:var(--canvas);border-left:2px solid var(--subject-unknown);color:var(--ink-soft);font-size:11px;line-height:1.7}.calendar-source-notice.stale,.calendar-source-notice.not_synced{border-color:var(--subject-toefl-listening-outline)}.calendar-source-notice span{display:block}.todo-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.student-todo-groups{display:grid;gap:28px}.student-page .todo-panel>.section-heading>.text-button{flex-shrink:0;white-space:nowrap}.student-todo-subject{min-width:0;padding-inline-start:18px;border-inline-start:4px solid var(--subject-fill, var(--subject-unknown))}.student-todo-subject-heading{margin:0 0 12px;color:var(--ink);font-size:18px;line-height:1.5}.student-todo-subject .calendar-event.is-overdue{border-left:1px solid var(--line)}.panel-loading{min-height:160px;display:flex;align-items:center;justify-content:center;gap:10px;color:var(--ink-soft)}.list-pagination{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:50px;margin-top:18px;color:var(--ink-soft);font-size:12px}.count-label{display:inline-block;min-width:28px;margin-left:7px;padding:2px 7px;border-radius:8px;background:var(--teal-pale);color:var(--teal-dark);font-size:15px;text-align:center}.completed-list{padding:0;list-style:none}.completed-list li{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0;border-top:1px solid var(--line)}.completed-list li>div{display:grid;gap:6px}.completed-list strong{font-size:14px}.completed-list span{font-size:13px;color:var(--ink-soft)}.table-secondary{display:block;max-width:360px;margin-top:7px;color:var(--ink-soft);line-height:1.6;overflow-wrap:anywhere}.table-actions{display:flex;flex-wrap:wrap;gap:12px;min-width:150px}.inline-confirmation{display:grid;gap:10px;padding:20px;margin:20px 0;border:1px solid var(--teal);border-radius:12px;background:var(--teal-pale)}.inline-confirmation.danger{border-color:var(--red);background:var(--red-pale)}.inline-confirmation h3{margin:0;font-size:17px;overflow-wrap:anywhere}.inline-confirmation p{margin:0;font-size:13px;line-height:1.7}.inline-confirmation label,.course-import-form label{display:grid;gap:7px;font-size:13px;color:var(--ink);font-weight:650}.inline-confirmation input,.course-import-form input,.course-import-form select{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.confirmation-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px;margin-top:8px}.danger-button{min-height:44px;min-width:116px;padding:0 18px;border:1px solid var(--red);border-radius:10px;background:var(--red);color:#fff;font-weight:700;cursor:pointer}.danger-button:hover:not(:disabled){background:#962d29}.danger-button:active:not(:disabled){transform:translateY(1px)}.course-import-form{display:grid;gap:14px;max-width:720px}.course-import-form>button{width:fit-content;min-width:150px}.course-import-form .checkbox-row{grid-template-columns:20px minmax(0,1fr);align-items:start}.course-import-form .checkbox-row input{width:18px;min-height:18px;margin:2px 0}.selected-file{display:flex;justify-content:space-between;gap:12px;color:var(--ink-soft);font-size:12px}.selected-file span{overflow-wrap:anywhere}.course-preview{display:grid;gap:18px;margin-top:22px}.course-preview .notice{margin:0}.notice.warning{color:#714e13;background:#fff8de;border-color:var(--subject-toefl-listening-outline)}.deadline-proposal-note{padding:14px;border:1px solid var(--line);border-radius:10px;color:var(--ink-soft);font-size:13px}.deadline-proposal-note p{margin:8px 0 0;line-height:1.65}.password-visibility-control{justify-self:start}@container teaching-calendar (max-width: 820px){.calendar-layout{grid-template-columns:1fr;gap:20px}.calendar-day{border-left:0;border-top:1px solid var(--line);padding:18px 0 0}.calendar-day-events{max-height:none;padding-right:0}}@media(max-width:600px){.calendar-heading{flex-direction:column;gap:15px}.calendar-navigation{width:100%;justify-content:space-between}.panel.study-calendar{padding:16px 10px}.calendar-legend{gap:8px 12px}.calendar-date{min-height:78px;gap:6px}.calendar-dots{max-width:28px;gap:2px}.calendar-dot-help{line-height:1.7}.month-table{border-spacing:0}.month-table th{font-size:11px}.calendar-day{padding:18px 5px 0}.calendar-course-actions{column-gap:7px}.calendar-course-link{min-height:40px}.calendar-course .calendar-course-time{font-size:17px}.calendar-course .calendar-event-detail{font-size:12px}.todo-list{grid-template-columns:1fr}.section-heading{gap:10px}.section-heading>button{flex-shrink:0}.inline-confirmation{padding:14px}.list-pagination{flex-wrap:wrap}}.content-admin-page{display:grid;gap:18px}.content-release-panel,.content-catalog-panel{margin:0}.content-import-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:end}.content-import-form label{display:grid;gap:8px;color:var(--ink);font-size:13px;font-weight:700}.content-import-form input[type=file]{min-height:44px;padding:9px 11px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink-soft)}.content-diff{display:grid;gap:15px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.content-summary{display:grid;grid-template-columns:repeat(4,minmax(90px,1fr));gap:10px}.content-summary span{display:grid;gap:3px;min-height:72px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#faf8f2;color:var(--ink-soft);font-size:12px}.content-summary strong{color:var(--ink);font-family:Georgia,serif;font-size:25px}.danger-text,.content-summary .danger-text strong{color:var(--red)}.hash-line{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0;color:var(--ink-soft);font-size:12px}.hash-line code{max-width:72%;overflow-wrap:anywhere}.diff-pill,.interaction-pill{display:inline-flex;align-items:center;min-height:24px;padding:2px 8px;border:1px solid var(--line);border-radius:999px;background:#f7f5ef;color:var(--ink-soft);font-size:11px;font-weight:750}.diff-pill.create{border-color:#9fd0b2;background:#eaf7ef;color:var(--teal-dark)}.diff-pill.update{border-color:#adc4df;background:#edf5ff;color:#2359a2}.diff-pill.blocked{border-color:#e7b8b3;background:#fff0ed;color:var(--red)}.publish-confirmation{display:flex;align-items:center;justify-content:flex-end;gap:13px;flex-wrap:wrap;padding:14px;border:1px solid #c9ddd8;border-radius:11px;background:var(--teal-pale)}.publish-confirmation p{flex:1 1 320px;margin:0;color:var(--ink-soft);font-size:13px}.publish-confirmation small{width:100%;text-align:right;color:var(--ink-soft)}.content-filter-form{display:grid;grid-template-columns:repeat(5,minmax(115px,1fr)) auto;gap:10px;align-items:end}.content-filter-form label{display:grid;gap:6px;color:var(--ink-soft);font-size:11px;font-weight:700}.content-filter-form input,.content-filter-form select{min-height:40px}.content-filter-form .checkbox-row{display:flex;align-items:center;min-height:40px}.content-filter-form .checkbox-row input{min-height:18px}.search-field{display:flex;align-items:center;min-width:0}.search-field input{min-width:0;width:100%}.content-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:18px}.content-item-card{min-width:0;padding:16px;border:1px solid var(--line);border-radius:14px;background:#fffefa}.content-item-card>header,.content-item-card>footer{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.content-item-card>header span,.content-item-card>footer{color:var(--ink-soft);font-size:11px}.content-item-card h3{margin:4px 0 0;overflow-wrap:anywhere;font-size:16px}.content-item-card>footer{margin-top:14px;padding-top:11px;border-top:1px solid #ece8df}.content-preview{min-height:118px;margin-top:14px;padding:14px;border-radius:10px;background:#f7f8fb;color:var(--ink);font-size:13px;line-height:1.55}.content-preview>:first-child{margin-top:0}.content-preview>:last-child{margin-bottom:0}.preview-context{white-space:pre-wrap}.preview-chips{display:flex;flex-wrap:wrap;gap:6px}.preview-chips span{padding:5px 7px;border:1px solid #b9c7da;border-radius:7px;background:#fff;color:#233756}.preview-writing-area,.preview-math-input{min-height:52px;margin-top:12px;padding:11px;border:1px dashed #9dafc3;border-radius:8px;background:#fff;color:#6b7b90}.content-item-card details{margin-top:12px;color:var(--ink-soft);font-size:12px}.content-item-card summary{cursor:pointer;font-weight:700}.content-item-card pre{max-height:260px;overflow:auto;padding:10px;border-radius:8px;background:#172033;color:#edf5ff;white-space:pre-wrap;overflow-wrap:anywhere;font-size:11px}.practice-page{min-height:calc(100vh - 70px)}.miaoda-practice{padding:28px 18px 72px;background:#f4f7fb;color:#172033}.practice-hero{max-width:920px;margin:0 auto;padding:28px;border-radius:24px;background:linear-gradient(135deg,#132a53,#244f91);color:#fff;box-shadow:0 18px 45px #173b7126}.practice-eyebrow{font-size:13px;font-weight:720;letter-spacing:.08em;opacity:.78}.practice-hero h1{margin:10px 0 8px;font-family:system-ui,sans-serif;font-size:clamp(22px,4vw,34px);font-weight:600;line-height:1.25}.practice-hero p{margin:0;line-height:1.65;opacity:.86}.practice-toolbar{position:sticky;top:78px;z-index:20;max-width:916px;min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin:22px auto 12px;padding:9px 11px;border:1px solid #dfe6f0;border-radius:12px;background:#fffffff2;color:#52627b;box-shadow:0 6px 18px #19365d12;backdrop-filter:blur(10px)}.practice-toolbar-right{display:flex;align-items:center;justify-content:flex-end;gap:12px}.back-link{min-height:36px;border:0;border-radius:8px;background:transparent;cursor:pointer;color:#52627b;padding:0 8px;font-size:14px;font-weight:700}.back-link:hover{background:#eef5ff;color:#2359a2}.practice-progress{min-width:min(330px,42vw);display:grid;grid-template-columns:auto minmax(80px,180px);align-items:center;gap:13px;font-size:14px}.practice-progress>div{height:5px;background:#dfe6f0;border-radius:9px;overflow:hidden}.practice-progress i{display:block;height:100%;background:#2868c7;border-radius:inherit;transition:width .25s ease}.timer{min-width:80px;padding:7px 9px;border:1px solid rgba(36,122,77,.32);border-radius:9px;background:#eaf7ef;color:#247a4d;text-align:center}.timer small{display:block;color:inherit;font-size:9px;font-weight:700}.timer strong{font-family:Courier New,monospace;font-variant-numeric:tabular-nums;font-size:17px}.timer.urgent{border-color:#b83b3659;background:#fff4e9;color:#a44724}.timer.expired{border-color:#b83b3659;background:#fff0ed;color:#b83b36}.practice-timer-gate{max-width:920px;min-height:320px;margin:14px auto;padding:36px 24px;display:grid;justify-items:center;align-content:center;gap:14px;border:1px solid var(--line);border-radius:18px;background:var(--paper);text-align:center}.practice-timer-gate h2{margin:0;color:var(--ink);font-size:26px}.practice-timer-gate p{max-width:560px;margin:0;color:var(--ink-soft);font-size:15px;line-height:1.7}.timer-mode-label{color:var(--teal-dark);font-size:14px;font-weight:700}.practice-timer-gate .timer-gate-status{min-height:26px;font-size:14px}.practice-timer-gate .primary-button{min-width:156px}.practice-toolbar .timer-pause-button{min-height:44px;white-space:nowrap}.save-state{min-width:118px;display:flex;align-items:center;gap:7px;color:#667381;font-size:14px}.save-state>span{width:7px;height:7px;border-radius:50%;background:#a9b1b5}.save-state.saved>span{background:#247a4d}.save-state.saving>span{background:#986400;animation:pulse 1s infinite}.save-state.offline>span,.save-state.conflict>span{background:#b83b36}.save-state.failed,.save-state.uncertain{color:var(--red)}.save-state.failed>span,.save-state.uncertain>span{background:var(--red)}.save-state.pending>span{background:var(--warning)}@keyframes pulse{50%{opacity:.25}}.sticky-notice,.practice-page>.notice{max-width:920px;margin-left:auto;margin-right:auto}.result-card{max-width:920px;margin:14px auto;padding:20px 22px;border:1px solid #9fd0b2;border-radius:14px;background:#eaf7ef;color:#172033;display:flex;justify-content:space-between;align-items:center;box-shadow:0 10px 24px #26344714}.result-card span{color:#247a4d;font-size:12px;font-weight:750}.result-card h2{margin:3px 0;font-family:Georgia,serif;font-size:38px}.result-card h2 small{font-size:17px;color:#667381}.result-card p{margin:0;color:#43505b}.question-list{max-width:920px;margin:0 auto;display:grid;gap:14px}.question-card{overflow:hidden;border:1px solid #e3e9f2;border-radius:18px;background:#fff;box-shadow:0 8px 24px #1c355b0d}.question-card>.question-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:start;padding:20px 20px 0;border:0}.question-head h2{margin:0;font-size:17px;font-weight:720;line-height:1.45}.question-number{margin-right:8px;color:#2868c7;font-family:inherit}.reset-question-button{width:38px;height:38px;border:1px solid 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