*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{padding-top:env(safe-area-inset-top);padding-right:env(safe-area-inset-right);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f5f5f5}#root{min-height:100vh}html,body,#root{max-width:100%;overflow-x:hidden}.teacher-shell{min-height:100vh;width:100%}.teacher-shell--side{display:flex;flex-direction:row}.teacher-shell--phone{display:flex;flex-direction:column}.teacher-sidebar{flex:0 0 auto;min-height:100vh;background:#fff;border-right:1px solid #f0f0f0}.teacher-sidebar-head{height:48px;display:flex;align-items:center;justify-content:flex-end;padding:0 8px}.teacher-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}.teacher-topbar{height:56px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;background:#fff;border-bottom:1px solid #f0f0f0}.teacher-brand{font-size:18px;font-weight:600;color:#000000e0;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}.teacher-env-badge{margin-inline-start:0;margin-inline-end:0;text-transform:uppercase}.teacher-topbar__hint{color:#00000073;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.teacher-topbar__user{flex:0 0 auto}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.login-card{width:100%;max-width:400px;box-shadow:0 4px 16px #0000000f}.login-title{margin-bottom:4px!important}.login-desc{margin-bottom:16px!important}.login-error{margin-bottom:16px}.page-hint{margin-bottom:8px!important}.editor-lesson.active{background:#e6f4ff}.editor-json-area{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.editor-errors{margin-top:12px}.editor-error-item{padding:2px 0!important;border-block-end:none!important;word-break:break-all}.script-form-asset{row-gap:4px;margin-bottom:8px}.script-form-beat-brief{margin-bottom:0!important}.qc-error-line{word-break:break-all}.qc-spin-holder{padding:32px 0}.preview-canvas-wrap{width:100%;min-height:360px;background:#bcc1cc;border-radius:4px;overflow:auto}.preview-canvas{display:block;width:100%}.preview-overlay-host{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.lesson-preview-steps{max-height:220px;overflow:auto}.lesson-preview-md{white-space:pre-wrap;margin-bottom:0!important}.lesson-preview-log{padding:2px 0!important;border-block-end:none!important;font-size:12px;color:#0000008c}.teacher-content{flex:1 1 auto;min-width:0;padding:16px}.teacher-phone-menu{background:#fff;border-bottom:1px solid #f0f0f0}@media (max-width: 767.98px){.teacher-phone-menu .ant-menu-item,.teacher-phone-menu .ant-menu-submenu-title{min-height:44px;line-height:44px}.teacher-topbar .ant-btn{min-height:44px}.teacher-content{padding:12px}.teacher-topbar__hint{display:none}}