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#0000003d}.dialog-heading,.dialog-heading>div{align-items:center;gap:13px;display:flex}.dialog-heading{justify-content:space-between;margin-bottom:24px}.dialog-heading>button{width:36px;height:36px;color:var(--muted);background:#f0f1ed;border:0;border-radius:10px;font-size:22px}.dialog h2{font-size:21px}.dialog textarea{border:1px solid var(--line);resize:vertical;width:100%;min-height:120px;color:var(--ink-deep);font:inherit;background:#ffffffb8;border-radius:13px;outline:none;padding:14px 15px;line-height:1.6}.dialog textarea:focus{border-color:var(--teal);background:#fff;box-shadow:0 0 0 4px #2f6d681a}.field-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.field-grid .full{grid-column:1/-1}.dialog-actions{justify-content:flex-end;gap:8px;margin-top:24px;display:flex}.skeleton-wrap{gap:18px;display:grid}.skeleton{background:linear-gradient(90deg,#ebece7 25%,#f5f5f1 50%,#ebece7 75%) 0 0/200% 100%;border-radius:20px;animation:1.5s infinite shimmer}.skeleton.metrics{height:156px}.skeleton.body{height:330px}@keyframes shimmer{to{background-position:-200% 0}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-8px)}}@media (width<=980px){.login-shell{grid-template-columns:1fr}.login-story{min-height:460px}.story-copy{margin:70px 0}.app-shell{grid-template-columns:78px minmax(0,1fr)}.sidebar{padding-inline:13px}.sidebar-brand>span:last-child,.nav-item span,.nav-item small,.environment-badge,.logout-button{font-size:0}.sidebar-brand{justify-content:center;padding-inline:0}.nav-item,.logout-button{justify-content:center}.work-grid{grid-template-columns:1fr}.directory-toolbar{flex-direction:column;align-items:flex-start}.search-box{width:100%}.student-directory-head{display:none}.student-directory-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media (width<=720px){.login-story{min-height:420px;padding:32px 26px}.story-copy{margin:48px 0}.story-copy h1{font-size:42px}.story-stat-row{gap:18px}.story-stat-row strong{font-size:22px}.login-panel{padding:42px 24px}.app-shell{display:block}.sidebar{z-index:20;flex-direction:row;align-items:center;width:100%;height:68px;padding:8px 18px;position:fixed;top:auto;bottom:0}.sidebar-brand,.sidebar-footer,.nav-item:disabled{display:none}.sidebar nav{align-items:center;gap:4px;width:100%;display:flex;overflow-x:auto}.nav-item{flex-direction:column;flex:1 0 62px;justify-content:center;gap:3px;min-width:62px;min-height:50px;padding:5px 7px}.nav-item span{font-size:9px}.nav-item small{display:none}.workspace{padding:24px 18px 90px}.topbar{display:grid}.topbar-actions{grid-template-columns:42px minmax(0,1fr);align-items:center;width:100%;display:grid}.topbar-actions .outline-button{width:100%;min-width:0}.user-chip{border-top:1px solid var(--line);grid-column:1/-1;margin:4px 0 0;padding-top:12px}.metric-grid{grid-template-columns:1fr}.metric-card{min-height:135px}.field-grid{grid-template-columns:1fr}.field-grid .full{grid-column:auto}.queue-row{grid-template-columns:auto minmax(0,1fr)}.queue-actions{grid-column:2;justify-self:start}.student-directory-row{grid-template-columns:1fr;gap:13px}.student-lessons:before{content:"剩余课时";color:var(--muted);margin-right:auto;font-size:10px}.guardian-list{border-top:1px solid var(--line);padding-top:12px}}