.app-shell{min-height:100vh;padding:16px;background:radial-gradient(circle at top right,rgba(76,145,255,.12),transparent 28%),radial-gradient(circle at bottom left,rgba(255,204,112,.16),transparent 26%),linear-gradient(135deg,#f2f7ff,#f8fbff 55%,#eef5ff)}.app-card{max-width:1860px;margin:0 auto;background:#fffffff0;border:1px solid rgba(202,219,241,.9);border-radius:24px;box-shadow:0 24px 60px #234a8214;padding:18px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.app-header{margin-bottom:16px;text-align:center}.app-header h1{margin:0;font-size:clamp(28px,4vw,38px);color:#1d4f91}.app-header p{margin:8px 0 0;color:#607792;font-size:14px}.app-layout{display:grid;grid-template-columns:320px minmax(0,1fr) 380px;gap:14px}.side-panel,.detail-panel,.classroom-panel{border:1px solid #dbe7f5;border-radius:18px;background:linear-gradient(180deg,#fbfdff,#f5f9ff);padding:14px}.panel-block+.panel-block{margin-top:16px}.panel-block h3{margin:0 0 10px;color:#214f87;font-size:17px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}label{display:block;color:#506a84;font-size:13px}input,textarea,select,button{font:inherit}input,textarea,select{width:100%;margin-top:6px;border:1px solid #ccd9ea;border-radius:12px;padding:10px 12px;background:#fffffff5;color:#23384e}textarea{min-height:120px;resize:vertical}.button-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}button{border:none;border-radius:12px;padding:10px 14px;color:#fff;background:linear-gradient(135deg,#276fca,#1d4f91);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;box-shadow:0 8px 18px #276fca29}button:hover{transform:translateY(-1px)}button.secondary{background:linear-gradient(135deg,#7d8ca1,#5d6d81);box-shadow:0 8px 18px #5d6d8129}button.danger{background:linear-gradient(135deg,#e06363,#c53b3b);box-shadow:0 8px 18px #c53b3b29}.student-list{display:grid;gap:8px;max-height:320px;overflow:auto}.list-tools{display:grid;gap:8px;margin-bottom:10px}.student-item{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;text-align:left;background:#fff;color:#27415f;border:1px solid #d5e2f3;box-shadow:none}.student-item.active{background:linear-gradient(135deg,#edf4ff,#e5f0ff);border-color:#94b4df}.delete-chip{min-width:28px;height:28px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:#e95d5d;color:#fff;font-size:12px}.empty-tip{padding:18px 12px;border-radius:14px;color:#7d8fa5;background:#fffc;border:1px dashed #d1dceb;text-align:center}.classroom-header{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}.area-card{width:100%;border-radius:14px;padding:12px 10px;text-align:center;font-weight:700;letter-spacing:1px}.area-card.blackboard{background:linear-gradient(135deg,#eff5fb,#e6edf7);color:#6d8197;margin-bottom:22px;border:1px solid #dbe5f1}.area-card.teacher{background:linear-gradient(135deg,#e8f0ff,#dde9ff);color:#1f4d8a;margin-top:22px;border:1px solid #cbdaf5}.seat-grid{display:grid;gap:8px}.grid-label{min-height:30px;border-radius:10px;background:#edf3fb;color:#486581;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.grid-label.corner{background:transparent}.grid-label.aisle-label{color:#97a6b8;background:#f3f6fb}.aisle-gap{min-height:90px}.seat{min-height:90px;border-radius:14px;background:#fff;border:1px dashed #bfd0e6;display:flex;align-items:center;justify-content:center;position:relative;padding:8px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.seat:hover{transform:translateY(-1px);box-shadow:0 10px 20px #3e649714}.seat.occupied{border-style:solid;border-color:#8fb3dd}.seat.occupied.high{background:linear-gradient(180deg,#f4fbf4,#e8f8e8);border-color:#7bc67b}.seat.occupied.low{background:linear-gradient(180deg,#fff5f5,#ffe9e9);border-color:#e49a9a}.seat.occupied.unrated{background:linear-gradient(180deg,#f7f9fc,#edf1f7);border-color:#c3cfdf}.seat-content{display:flex;flex-direction:column;align-items:center;gap:6px;width:100%}.seat-avatar{width:48px;height:48px;object-fit:cover;border-radius:50%;border:2px solid #d7e5f6}.seat-name{max-width:100%;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.seat-score{position:absolute;top:6px;right:6px;min-width:26px;height:26px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:#1d4f91;color:#fff;font-size:12px;font-weight:700;padding:0 6px}.seat-score.female{background:#e55aa2}.seat-legend{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:10px;color:#567290;font-size:12px}.seat-legend span{display:inline-flex;align-items:center;gap:6px}.legend-dot{width:12px;height:12px;border-radius:999px;border:1px solid #c3d2e7;display:inline-block}.legend-dot.high{background:#8fd18f}.legend-dot.low{background:#eda7a7}.legend-dot.female{background:#e55aa2}.legend-dot.unrated{background:#c6d3e1}.detail-card{border:1px solid #dce6f4;border-radius:18px;padding:14px;background:linear-gradient(180deg,#fbfdff,#f4f8ff)}.empty-detail{color:#6f8398;text-align:center}.detail-head{display:flex;gap:14px;align-items:center}.detail-avatar{width:96px;height:96px;object-fit:cover;border-radius:50%;border:3px solid #d9e5f7;cursor:pointer}.detail-meta{min-width:0}.name-button{border:none;padding:0;background:transparent;color:#1d3550;box-shadow:none;font-size:22px;font-weight:800}.name-button:hover{transform:none}.compact-label{display:inline-flex;align-items:center;gap:8px;margin-top:6px}.compact-label select{width:auto;min-width:92px;margin-top:0}.total-card{margin:12px 0 8px;border:1px solid #d3e0f3;border-radius:16px;background:#fff;padding:14px;text-align:center}.total-card-label{font-size:13px;color:#6c8095}.total-card-value{margin-top:6px;font-size:56px;line-height:1;font-weight:800;color:#1d4f91}.detail-score-list{display:grid;gap:10px;margin-top:12px}.score-input-row{display:grid;grid-template-columns:1fr auto auto;gap:6px;align-items:end}.mini-btn{width:36px;height:40px;padding:0;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1}.history-list{margin-top:12px;max-height:180px;overflow:auto;border:1px solid #d8e4f3;border-radius:14px;background:#fff;padding:8px}.history-item{padding:8px 6px;border-bottom:1px dashed #e0e8f4;color:#54708f;font-size:13px}.history-item:last-child{border-bottom:none}.mobile-student-tabs-wrapper{margin-bottom:10px;border:1px solid #d5e2f3;border-radius:12px;overflow:hidden}.mobile-student-tabs-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;background:#fff;cursor:pointer}.tabs-label{font-weight:600;color:#27415f}.tabs-count{padding:4px 10px;border-radius:999px;background:#e8f0ff;color:#1f4d8a;font-size:12px}.tabs-toggle{font-size:12px;color:#6d8197}.tabs-toggle.expanded{transform:rotate(180deg)}.mobile-student-tabs{display:none;flex-wrap:wrap;gap:6px;padding:10px;background:#fafbfd;max-height:320px;overflow-y:auto}.mobile-student-tabs.expanded{display:flex}.mobile-student-tab{flex:0 0 auto;border:1px solid #d5e2f3;background:#fff;color:#27415f;box-shadow:none;padding:8px 12px}.mobile-student-tab.active{border-color:#94b4df;background:linear-gradient(135deg,#edf4ff,#e5f0ff)}.status-bar{margin-top:14px;border:1px solid #d9e6f5;border-radius:14px;background:linear-gradient(135deg,#f8fbff,#eef5ff);padding:10px 14px;color:#4b6581;display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap}@media (max-width: 1480px){.app-layout{grid-template-columns:320px minmax(0,1fr)}.detail-panel{grid-column:1 / -1}}@media (max-width: 1280px){.app-layout{grid-template-columns:1fr}.detail-panel{grid-column:auto}.status-bar{justify-content:flex-start}}@media (max-width: 768px){.app-shell{padding:0}.app-card{border-radius:0;min-height:100vh;padding:10px}.app-header,.side-panel,.classroom-panel{display:none}.app-layout{display:block}.detail-panel{display:block;min-height:calc(100vh - 72px);border-radius:0;border-left:none;border-right:none}.mobile-student-tabs-wrapper{display:block}}:root{font-family:Microsoft YaHei,PingFang SC,sans-serif;color:#203246;background:#eef4fb;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{min-width:320px}