[hidden]{display:none!important}.account-locked #app,.account-locked .bottom-nav{display:none!important}.access-gate{min-height:100dvh;display:grid;grid-template-columns:1.05fr 1fr;background:#f7f8fc;padding:5vw;gap:7vw;align-items:center}.gate-art{padding:4vw;background:#5056d9;color:white;border-radius:28px;min-height:640px;position:relative;overflow:hidden}.gate-mark{font-size:40px}.gate-art h1{font-size:clamp(32px,4vw,58px);line-height:1.4;margin:35px 0 20px;letter-spacing:2px}.gate-art p{color:#e0e2ff;line-height:1.9}.gate-seats{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:50px;transform:rotate(-9deg);opacity:.55}.gate-seats i{height:35px;border-radius:6px;background:#c1c5ff}.gate-seats i:nth-child(5n){background:#858bf5}.gate-card{max-width:430px;padding:28px}.eyebrow{color:#5056d9;font-weight:600;font-size:13px;letter-spacing:2px}.gate-card h2{font-size:34px;margin:18px 0}.gate-card p{font-size:15px;line-height:1.9;color:#70798e;margin-bottom:32px}.gate-card>.btn{width:100%;height:48px;margin-bottom:12px;font-size:15px}.gate-note{font-size:12px;color:#989fb1;margin-top:34px}.rooms-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin-top:24px}.room-card,.room-editor{background:white;border:1px solid var(--line);border-radius:14px;padding:22px}.room-card h3{margin:16px 0 8px}.room-card p,.editor-hint{color:var(--muted);font-size:12px;line-height:1.8}.room-card .action-row{gap:8px;flex-wrap:wrap}.room-card .btn{font-size:12px}.room-mini{display:grid;gap:3px;height:120px;background:#f7f8ff;border-radius:8px;padding:14px}.room-mini span{background:#c2c6f7;border-radius:2px}.room-editor{margin-top:28px;scroll-margin-top:20px}.editor-fields{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:14px;margin-bottom:18px}.editor-fields label{font-size:12px;color:var(--muted);display:grid;gap:7px}.editor-fields .ctrl{width:100%;min-width:0}.editor-scroll{overflow:auto;max-height:480px;border:1px solid #e1e4f1;background:#f8f9fe;border-radius:12px;padding:16px;margin:18px 0}.editor-grid{display:grid;gap:8px;width:max-content}.editor-cell{height:48px;border:1px dashed #d5d9e9;border-radius:7px;background:#fff;color:#b7bdd1;font-size:13px;touch-action:manipulation}.editor-cell.occupied{background:#e7e9ff;border:1px solid #bec4f5;color:#5056d9;font-weight:600;cursor:grab}.editor-cell.selected{background:#5056d9;color:white;border:2px solid #343abe;box-shadow:0 0 0 3px #d7daff}.selection-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px}.selection-tools>span{margin-right:auto;color:var(--muted)}.selection-tools label{display:flex;gap:8px;align-items:center}.selection-tools input{width:84px}.editor-footer{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.user-card{display:flex;align-items:center;gap:20px;padding:20px 4px;border-bottom:1px solid var(--line)}.user-card>div:first-child{flex:1}.user-card p{font-size:12px;color:var(--muted);margin-bottom:0}.user-card .action-row{margin:0}.status-tag.pending{background:#fff4d8;color:#936c19}.status-tag.disabled,.status-tag.rejected{background:#fae7e9;color:#ad5061}.admin-filter{display:flex;align-items:center;gap:12px;font-size:13px;margin-bottom:20px}.classroom-wrap{overflow:auto}.page:has(#roomEditor) .section-heading{flex-wrap:wrap}
@media(max-width:760px){.access-gate{display:block;padding:22px;min-height:100dvh}.gate-art{min-height:0;padding:26px;border-radius:18px}.gate-art h1{font-size:30px;margin:16px 0}.gate-art p{font-size:12px}.gate-mark{font-size:28px}.gate-seats{display:none}.gate-card{padding:30px 6px;max-width:none}.gate-card h2{font-size:26px;margin:12px 0}.gate-card p{font-size:13px;margin-bottom:22px}.gate-note{margin-top:15px}.rooms-list{grid-template-columns:1fr;gap:14px}.room-editor{padding:16px 12px}.editor-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.editor-fields label:first-child{grid-column:1/-1}.room-editor .section-heading h2{font-size:19px}.selection-tools>span{width:100%;margin-bottom:6px}.selection-tools{gap:8px}.selection-tools .btn{font-size:11px}.editor-scroll{padding:10px;max-height:340px}.user-card{flex-wrap:wrap;gap:12px}.user-card .action-row{width:100%}.room-editor .action-row{flex-wrap:wrap}.room-card{padding:18px}.editor-hint{font-size:11px}}
@media print{.dynamic-room{min-width:0!important}.layout-seats{break-inside:avoid}.access-gate{display:none!important}}
/* 默认座位图忠实保留用户 HTML 原型的物理排列与尺寸。 */
:is(.prototype-room,.dynamic-room) .seat{height:96px;padding:8px 6px 10px;border-radius:12px}:is(.prototype-room,.dynamic-room) .seat-name{font-size:15px;line-height:1.18;white-space:normal}:is(.prototype-room,.dynamic-room) .pcno{font-size:11px;top:5px;left:7px}:is(.prototype-room,.dynamic-room) .seat-identity-stack{max-width:78px}:is(.prototype-room,.dynamic-room) .mark-badge{font-size:9px}:is(.prototype-room,.dynamic-room) .device-badge{font-size:9px}#groupPanel{margin:0;padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px}.mobile-seats .seat-identity-stack{max-width:100%;max-height:64px}.mobile-seats .seat-role-badges{margin-top:3px}
@media(min-width:1100px){.layout:has(.prototype-room){grid-template-columns:minmax(0,1fr)}.layout:has(.prototype-room)>.side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.classroom-wrap:has(.prototype-room){overflow:auto}}
@media(max-width:760px){.classroom-wrap:has(.prototype-room){display:block;max-width:100%;overflow:auto}.seat-panel:has(.prototype-room) .mobile-seats{display:none}.prototype-room{min-width:1560px!important}.seat-panel:has(.prototype-room) .seat-help{display:block;font-size:10px}.classroom-wrap:has(.coordinate-room)::before{content:'左右滑动查看完整教室 · 排列与原型一致';display:block;padding:10px 16px;font-size:11px;color:#697386}.group-manage-grid{grid-template-columns:1fr}.group-picker{grid-template-columns:repeat(2,minmax(0,1fr))}.group-seat-select-bar{bottom:75px;flex-wrap:wrap}}



/* Classroom controls 2.2 */
.header-title{display:flex;align-items:center;gap:12px}.nav-toggle{font-size:20px;flex-shrink:0}.legend{flex-wrap:wrap}.legend .male{background:#dcecff;border:1px solid #8db9e8}.legend .female{background:#ffe2ee;border:1px solid #e5a5bf}
@media(min-width:761px){.nav-collapsed .navigation{display:none}.nav-collapsed .workspace{margin-left:0}}
@media(max-width:760px){.nav-toggle{display:none}}
.pick-stage{text-align:center;border-radius:16px;background:linear-gradient(135deg,#f0f2ff,#faf4ff);padding:20px;margin-top:20px}.pick-stage .pick-result{min-height:135px;padding:24px 8px;overflow-wrap:anywhere}.pick-stage.is-rolling .pick-result{animation:namePulse .18s ease-in-out infinite alternate}.pick-stage p{min-height:24px}.pick-actions{justify-content:center}.pick-actions .btn{min-width:140px;height:44px}.pick-stage.revealed{box-shadow:inset 0 0 0 2px #b7b9f2}.pick-status{font-size:12px;color:var(--muted)}
@keyframes namePulse{from{transform:translateY(-3px);opacity:.6}to{transform:translateY(3px);opacity:1}}
@media(prefers-reduced-motion:reduce){.pick-stage.is-rolling .pick-result{animation:none}}

/* Seat map actions and classroom tools */
.map-classroom-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;border-left:1px solid var(--line);padding-left:14px;margin-left:auto}.map-tools-label{font-size:12px;color:var(--muted)}.map-classroom-tools .btn{color:var(--primary);background:#f8f8ff;border-color:#e1e2fa}#timerMini:empty{display:none}#timerMini{font-variant-numeric:tabular-nums;font-weight:650}
@media(max-width:1100px){.map-classroom-tools{flex-basis:100%;margin-left:0;padding:12px 0 0;border-left:0;border-top:1px solid var(--line)}}
@media print{.map-options{display:none!important}}

/* Group leaderboard and evaluation */
.group-overlay-label{pointer-events:auto;cursor:pointer;border:1px solid var(--group-color);font-family:inherit}.group-ranking-tabs,.group-eval-deltas{display:flex;gap:6px;margin:12px 0}.group-ranking-tabs button,.group-eval-deltas button{flex:1;border:1px solid var(--line);border-radius:7px;padding:8px;background:#fff;color:var(--text)}.group-ranking-tabs [aria-pressed=true],.group-eval-deltas [aria-pressed=true]{background:var(--primary);color:#fff;border-color:var(--primary)}.group-term-setting{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted);flex-wrap:wrap}.group-term-setting input{border:1px solid var(--line);padding:6px;border-radius:6px;max-width:100%}.group-ranking-note{font-size:11px;color:var(--muted);line-height:1.7;margin:9px 0}.group-ranking-row{display:flex;align-items:center;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}.group-ranking-row.active{background:#f3f3ff}.group-rank{width:22px;height:22px;display:grid;place-items:center;background:#f1f2fb;color:var(--primary);border-radius:6px;font-weight:700;flex-shrink:0}.group-ranking-name{min-width:0;flex:1;text-align:left;background:none;border:0;padding:0;color:var(--text)}.group-ranking-name strong{display:block;overflow-wrap:anywhere;border-left:3px solid var(--group-color);padding-left:7px}.group-ranking-name small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.group-ranking-score{font-size:22px;color:var(--primary);font-variant-numeric:tabular-nums}.group-ranking-score.negative,.group-eval-preset.negative{color:#b34b59}.group-eval-section-title{font-size:13px;margin:18px 0 9px}.group-eval-deltas button{font-weight:700}.group-eval-presets button{min-height:42px}#groupContextMenu{z-index:1600}

/* Live ranked score bars */
.group-bar-chart .group-ranking-row{display:grid;grid-template-columns:22px minmax(0,1fr) auto auto;gap:7px 8px;padding:14px 0}.group-bar-track{grid-column:2/-1;position:relative;height:20px;background:#f0f2f7;border-radius:5px;overflow:hidden}.group-bar-zero{position:absolute;top:0;bottom:0;width:1px;background:#9da6bc;z-index:1;transform:translateX(-50%)}.group-bar-fill{position:absolute;top:3px;bottom:3px;border-radius:3px;background:var(--group-color,var(--primary))}.group-bar-fill.negative{background:#c96878}.group-bar-chart .group-ranking-score{font-size:20px}.group-bar-chart .group-ranking-name strong{border:0;padding:0}.group-bar-chart .group-ranking-name small{line-height:1.6}

/* Switchable group leaderboard views */
.ranking-view-toolbar{display:flex;align-items:center;justify-content:space-between;margin:0 0 12px;gap:10px}.ranking-view-toolbar>span{font-size:12px;color:var(--muted)}.ranking-view-control{position:relative}.ranking-view-choices{position:absolute;right:0;top:calc(100% + 5px);z-index:30;min-width:135px;padding:5px;background:white;border:1px solid var(--line);border-radius:9px;box-shadow:0 6px 20px #20284618}.ranking-view-choices button{display:block;width:100%;border:0;background:transparent;text-align:left;padding:9px;border-radius:6px;color:var(--text)}.ranking-view-choices [aria-pressed=true]{background:#efefff;color:var(--primary)}.ranking-view-choices button:hover{background:#f2f3f8}.ranking-race-row{display:grid;grid-template-columns:26px minmax(48px,1fr) minmax(32px,1.7fr) auto auto;gap:8px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}.ranking-race-row.active{background:#f3f3ff}.ranking-medal{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:#f1f3f8;color:#6f7790;font-size:12px;font-weight:700;flex-shrink:0}.medal-1{background:#fff0c7;color:#a2771d}.medal-2{background:#e9edf5;color:#71809b}.medal-3{background:#f8e6d9;color:#b1784b}.ranking-group-name{border:0;background:transparent;color:var(--text);font-weight:650;padding:3px 0;min-width:0;overflow-wrap:anywhere;text-align:left;font-size:12px}.ranking-race-track{position:relative;height:10px;min-width:0}.ranking-race-bar{height:100%;display:block;background:var(--group-color,var(--primary));border-radius:3px}.ranking-loss{position:absolute;left:0;top:-7px;color:#b65266;font-size:18px}.ranking-value{font-size:21px;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--primary)}.ranking-value.negative,.ranking-column-value.negative{color:#bd5266}.ranking-podium{display:flex;align-items:flex-end;justify-content:center;gap:8px;margin:20px 0 16px}.ranking-podium-place{flex:1;min-width:0;text-align:center}.ranking-podium-place>.ranking-medal{margin-bottom:8px}.ranking-podium-step{display:flex;flex-direction:column;align-items:center;gap:10px;padding:14px 6px 10px;background:#f0f2f7;border-radius:9px 9px 0 0;justify-content:space-between}.podium-1 .ranking-podium-step{background:#ededff}.podium-3 .ranking-podium-step{background:#fff1e6}.ranking-podium-step .ranking-value{font-size:30px}.ranking-podium-step .ranking-group-name{text-align:center}.ranking-podium-step small,.ranking-column>small{font-size:10px;color:var(--muted)}.ranking-podium-place.active .ranking-podium-step{outline:2px solid var(--primary)}.ranking-columns-scroll{overflow-x:auto;padding:0 2px}.ranking-columns{display:grid;gap:0;min-width:100%;padding:30px 0 6px}.ranking-column{display:flex;flex-direction:column;align-items:center;min-width:0;padding-bottom:5px}.ranking-column-plot{height:170px;width:100%;position:relative;margin:0 0 32px}.ranking-column-zero{position:absolute;left:0;right:0;height:1px;background:#b5bed0}.ranking-column-bar{position:absolute;left:22%;width:56%;border-radius:5px 5px 0 0;background:var(--group-color,var(--primary))}.ranking-column-bar.negative{background:#c96878;border-radius:0 0 5px 5px}.ranking-column-value{position:absolute;left:0;width:100%;text-align:center;font-size:18px;color:var(--primary);font-variant-numeric:tabular-nums}.ranking-column .ranking-group-name{text-align:center;max-width:100%;padding:2px 4px}.ranking-column>small{margin:4px 0 10px}.ranking-column.active{background:#f5f5ff}@media(max-width:480px){.ranking-race-row{gap:6px;grid-template-columns:24px minmax(45px,1fr) minmax(25px,1fr) auto auto}.ranking-race-row .tinybtn{padding:5px 6px}.ranking-value{font-size:18px}}

.seat-panel>.unseated-panel{margin:0 18px 14px;padding:12px 14px;background:#fafaff;border-radius:8px}
.seat-panel>.unseated-panel .panel-title{margin-bottom:6px}
.seat-panel>.unseated-panel .hint{margin:4px 0 8px}
.seat-panel>.unseated-panel .unseated{max-height:110px}
.presentation .unseated-panel{display:none!important}
@media print{.unseated-panel{display:none!important}}

/* 按实际内容宽度适配，包含分组边框和最右侧机位。 */

.classroom-wrap{max-width:100%;overflow:visible!important}
.classroom-wrap:has(.coordinate-room)::before{content:'完整座位图 · 随窗口自动适配'!important}
@media(max-width:760px){.classroom-wrap{display:block!important}.seat-panel .mobile-seats{display:none!important}}

/* 班级右侧显示紧凑统计，课堂入口集中到座位图第一行。 */
.class-heading{justify-content:flex-start;flex-wrap:wrap;gap:24px;margin-bottom:16px}
.class-heading>.class-identity{width:auto;min-width:0}
.class-heading .stats-strip{flex:1;min-width:420px;max-width:none;margin:0;padding:14px 8px}
.content:has(#classroomPage:not(.active)) .stats-strip{display:none}
.map-toolbar{flex-wrap:wrap}
.map-toolbar .search{margin-right:auto}
.map-toolbar .session-controls{width:auto;flex-wrap:wrap;gap:8px}
.map-toolbar .session-live{font-size:11px}
.map-toolbar .map-classroom-tools{flex-basis:auto;margin:0;padding:0;border:0;flex-wrap:wrap}
.map-toolbar .map-tools-label{display:none}
.map-seating-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap}
@media(max-width:760px){
 .class-heading{gap:10px}
 .class-heading>.class-identity{width:100%}
 .class-heading .stats-strip{min-width:0;max-width:none;flex-basis:100%;padding:12px 0}
 .map-toolbar .session-controls{width:100%;justify-content:space-between}
 .map-toolbar .map-classroom-tools{flex-basis:100%;justify-content:flex-start;gap:8px}
 .map-toolbar .map-classroom-tools .btn{flex:1;height:34px;font-size:12px}
 .map-seating-actions{flex-basis:100%;margin-left:0}
 .map-seating-actions .btn{flex:1}
}

/* 默认与自建机房共用逻辑坐标，禁止 CSS 网格和讲台拉伸再次改变几何位置。 */
#classroomCanvas.coordinate-room{display:block!important;position:relative;box-sizing:border-box;width:var(--geometry-width)!important;height:var(--geometry-height)!important;min-width:0!important;min-height:0!important;padding:0!important;margin:0 auto;zoom:var(--room-zoom,1)!important}
.coordinate-room .layout-seats{display:block;position:absolute;padding:0;gap:0;min-height:0}
.coordinate-room .layout-seats>.seat{position:absolute;margin:0;z-index:2}
.coordinate-room .zone-label,.coordinate-room .layout-podium{position:absolute;box-sizing:border-box;margin:0!important}
.coordinate-room .zone-label{padding:5px!important;text-align:center;letter-spacing:.28em;font-size:11px;font-weight:600;border-radius:8px}
.coordinate-room .corridor{background:#b8b5b7}.coordinate-room .window{background:#b9c9ed}
.coordinate-room .layout-podium{display:flex;align-items:center;justify-content:center;line-height:1.3;letter-spacing:.3em;background:#8fa8db;border:1px solid #536da1;color:#536da1;font-size:22px;font-weight:800;border-radius:8px;align-self:center}
.coordinate-room .group-overlay-label{max-width:100%;overflow:hidden;text-overflow:ellipsis}
.coordinate-room .group-overlay.label-above .group-overlay-label{top:-25px;bottom:auto}.coordinate-room .group-overlay.label-below .group-overlay-label{bottom:-25px;top:auto}
.coordinate-room .group-overlay.label-above>.learning-seat-tag{top:-47px;bottom:auto}.coordinate-room .group-overlay.label-below>.learning-seat-tag{bottom:-47px;top:auto}

.coordinate-room.podium-left .layout-podium,.coordinate-room.podium-right .layout-podium{writing-mode:vertical-rl;letter-spacing:.3em}