:root {
    --primary: #007AFF;
    --primary-dark: #0A84FF;
    --success: #34C759;
    --success-dark: #30D158;
    --warning: #FF9500;
    --warning-dark: #FF9F0A;
    --error: #FF3B30;
    --error-dark: #FF453A;
    --label: #000000;
    --secondary-label: #3C3C43;
    --bg: #FFFFFF;
    --surface: #F2F2F7;
    --card: #FFFFFF;
    --separator: #E5E5EA;
    --card-radius: 16px;
    --btn-radius: 12px;
    --input-radius: 10px;
    --blur-bg: rgba(255,255,255,0.72);
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary: #0A84FF;
        --primary-dark: #409CFF;
        --success: #30D158;
        --success-dark: #63DB8B;
        --warning: #FF9F0A;
        --warning-dark: #FFD426;
        --error: #FF453A;
        --error-dark: #FF6961;
        --label: #FFFFFF;
        --secondary-label: #EBEBF5;
        --bg: #000000;
        --surface: #1C1C1E;
        --card: #1C1C1E;
        --separator: #38383A;
        --blur-bg: rgba(28,28,30,0.72);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI Variable', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--label);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 顶栏 */
.toolbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--blur-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--separator);
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.class-name {
    font-size: 22px;
    font-weight: 600;
}

.class-select {
    padding: 6px 12px;
    border: 2px solid var(--separator);
    border-radius: var(--btn-radius);
    background: var(--card);
    color: var(--label);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.class-select:hover,
.class-select:focus {
    border-color: var(--primary);
}

.toolbar-btn-sm {
    padding: 6px 10px;
    border: none;
    border-radius: var(--btn-radius);
    background: var(--surface);
    color: var(--label);
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s;
}

.toolbar-btn-sm:hover {
    background: var(--separator);
}

.class-create-section {
    margin-bottom: 16px;
}

.class-create-section h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--label);
}

.class-create-section .record-input {
    width: 100%;
    margin-bottom: 10px;
}

.class-import-zone {
    border: 2px dashed var(--separator);
    border-radius: var(--input-radius);
    padding: 14px;
    text-align: center;
    margin-bottom: 10px;
    transition: border-color 0.2s;
}

.class-import-zone.has-file {
    border-color: var(--success);
    background: rgba(52, 199, 89, 0.06);
}

.class-import-zone p {
    margin: 0 0 4px;
    font-size: 14px;
    color: var(--label);
}

.class-import-zone .import-hint {
    font-size: 12px;
    color: var(--secondary-label);
    margin-bottom: 8px;
}

.class-import-zone .file-name {
    display: inline-block;
    margin-left: 8px;
    font-size: 13px;
    color: var(--success);
    font-weight: 500;
}

.class-import-zone .action-btn {
    padding: 6px 16px;
    border: none;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
}

.class-import-zone .action-btn:hover {
    background: var(--primary-dark);
}

.template-link {
    display: inline-block;
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
    margin-top: 4px;
}

.template-link:hover {
    text-decoration: underline;
}

.class-list-divider {
    height: 1px;
    background: var(--separator);
    margin: 14px 0;
}

.class-list {
    max-height: 400px;
    overflow-y: auto;
}

.class-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--input-radius);
    margin-bottom: 6px;
    background: var(--surface);
}

.class-item .name {
    flex: 1;
    font-weight: 500;
}

.class-item .btns {
    display: flex;
    gap: 6px;
}

.class-item .btns button {
    padding: 4px 10px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
}

.class-item .btn-edit {
    background: var(--primary);
    color: #fff;
}

.class-item .btn-delete {
    background: var(--error);
    color: #fff;
}

.class-item .btn-current {
    background: var(--success);
    color: #fff;
    cursor: default;
}

.date-display {
    font-size: 15px;
    color: var(--secondary-label);
}

.toolbar-right {
    display: flex;
    gap: 8px;
}

.toolbar-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--btn-radius);
    background: var(--surface);
    color: var(--label);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 100ms ease, background 150ms ease;
}

.toolbar-btn:hover {
    background: var(--separator);
}

.toolbar-btn:active {
    transform: scale(0.97);
}

.toolbar-btn svg {
    width: 18px;
    height: 18px;
}

.btn-ai {
    background: var(--primary);
    color: #fff;
}

.btn-ai:hover {
    background: var(--primary-dark);
}

/* 管理区 */
.admin-bar {
    padding: 12px 24px;
}

.admin-btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--btn-radius);
    background: var(--surface);
    color: var(--label);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 100ms ease, background 150ms ease;
}

.admin-btn:hover {
    background: var(--separator);
}

.admin-btn:active {
    transform: scale(0.97);
}

/* 学生网格 */
.grid-container {
    padding: 16px 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

/* 分组区域 */
.group-section {
    padding: 0 24px 16px;
}

.section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary-label);
    margin-bottom: 10px;
    padding-left: 4px;
}

.group-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.group-bar {
    grid-column: span 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--card);
    border-radius: var(--card-radius);
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    cursor: pointer;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.group-bar:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.group-bar:active {
    transform: scale(0.98);
}

.group-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.group-bar-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.group-bar-info {
    display: flex;
    flex-direction: column;
    white-space: nowrap;
}

.group-bar-name {
    font-size: 16px;
    font-weight: 600;
}

.group-bar-count {
    font-size: 12px;
    color: var(--secondary-label);
}

.group-bar-score {
    font-size: 22px;
    font-weight: 700;
    min-width: 50px;
    text-align: right;
    flex-shrink: 0;
}

.group-bar-score.positive {
    color: var(--success);
}

.group-bar-score.negative {
    color: var(--error);
}

.group-bar-score.zero {
    color: var(--secondary-label);
}

@media (max-width: 768px) {
    .group-bar {
        grid-column: span 1;
    }
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--secondary-label);
}

.empty-state p:first-child {
    font-size: 18px;
    margin-bottom: 8px;
}

/* 学生卡片 */
.student-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 8px;
    background: var(--card);
    border: 1px solid var(--separator);
    border-radius: var(--card-radius);
    cursor: pointer;
    transition: transform 100ms ease, box-shadow 200ms ease;
    min-height: 80px;
    position: relative;
}

.student-card:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.student-card:active {
    transform: scale(0.97);
}

.student-card .student-name {
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    word-break: break-all;
}

.student-card .student-score {
    font-size: 13px;
    font-weight: 600;
    margin-top: 4px;
}

.student-card .student-score.positive {
    color: var(--success);
}

.student-card .student-score.negative {
    color: var(--error);
}

.student-card.absent {
    background: var(--warning);
    border-color: var(--warning);
    color: #fff;
}

.student-card.absent .student-name {
    color: #fff;
}

/* 弹窗 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--card);
    border-radius: var(--card-radius);
    box-shadow: 0 8px 32px rgba(0,0,0,0.16);
    width: 90%;
    max-width: 480px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.92) translateY(20px);
    transition: transform 250ms cubic-bezier(0.42, 0, 0.58, 1);
    overflow: hidden;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px 12px;
}

.modal-title-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.modal-student-name {
    font-size: 24px;
    font-weight: 600;
}

.modal-daily-score {
    font-size: 18px;
    font-weight: 700;
}

.modal-daily-score.positive {
    color: var(--success);
}

.modal-daily-score.negative {
    color: var(--error);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: var(--surface);
    color: var(--secondary-label);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 150ms ease;
}

.modal-close:hover {
    background: var(--separator);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 0 24px 16px;
}

.modal-actions-top {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.action-btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--btn-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 100ms ease, background 150ms ease;
}

.action-btn:active {
    transform: scale(0.97);
}

.btn-absent {
    background: var(--warning);
    color: #fff;
}

.btn-present {
    background: var(--success);
    color: #fff;
}

.btn-clear {
    background: var(--error);
    color: #fff;
}

.btn-clear:hover {
    background: var(--error-dark);
}

/* 记录列表 */
.modal-records h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary-label);
    margin-bottom: 8px;
}

.records-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.no-records {
    text-align: center;
    color: var(--secondary-label);
    padding: 20px;
    font-size: 14px;
}

.record-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--surface);
    border-radius: var(--input-radius);
    font-size: 14px;
    cursor: pointer;
    transition: background 150ms ease;
}

.record-item:hover {
    background: var(--separator);
}

.record-seq {
    font-weight: 600;
    color: var(--secondary-label);
    min-width: 24px;
}

.record-desc {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.record-desc.expanded {
    white-space: normal;
    word-break: break-all;
}

.record-score {
    font-weight: 600;
    min-width: 30px;
    text-align: right;
}

.record-score.positive {
    color: var(--success);
}

.record-score.negative {
    color: var(--error);
}

.record-score.zero {
    color: var(--secondary-label);
}

.record-time {
    font-size: 12px;
    color: var(--secondary-label);
    min-width: 50px;
}

.record-undo-btn {
    padding: 2px 8px;
    border: none;
    border-radius: 6px;
    background: rgba(255,59,48,0.08);
    color: var(--error);
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 150ms ease, background 150ms ease;
}

.record-item:hover .record-undo-btn {
    opacity: 1;
}

.record-undo-btn:hover {
    background: rgba(255,59,48,0.2);
}

/* 密码弹窗 */
.modal-password {
    max-width: 400px;
}

.password-hint {
    font-size: 14px;
    color: var(--secondary-label);
    margin-bottom: 16px;
}

.password-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.password-status {
    font-size: 13px;
    margin-top: 8px;
    color: var(--secondary-label);
}

/* 表单 */
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--separator);
}

.new-record-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.record-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--separator);
    border-radius: var(--input-radius);
    font-size: 15px;
    background: var(--surface);
    color: var(--label);
    outline: none;
    transition: border-color 150ms ease;
}

.record-input:focus {
    border-color: var(--primary);
}

.score-buttons {
    display: flex;
    gap: 6px;
    justify-content: center;
}

.score-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--btn-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 100ms ease, background 150ms ease;
}

.score-btn:active {
    transform: scale(0.93);
}

.score-btn.negative {
    background: #FFEBE9;
    color: var(--error);
}

.score-btn.negative:hover {
    background: #FFD6D3;
}

.score-btn.neutral {
    background: var(--surface);
    color: var(--secondary-label);
}

.score-btn.neutral:hover {
    background: var(--separator);
}

.score-btn.positive {
    background: #E8F9ED;
    color: var(--success);
}

.score-btn.positive:hover {
    background: #D1F2D8;
}

@media (prefers-color-scheme: dark) {
    .score-btn.negative {
        background: rgba(255,69,58,0.15);
    }
    .score-btn.positive {
        background: rgba(48,209,88,0.15);
    }
}

.submit-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--btn-radius);
    background: var(--primary);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 100ms ease, background 150ms ease;
}

.submit-btn:hover {
    background: var(--primary-dark);
}

.submit-btn:active {
    transform: scale(0.97);
}

/* 管理弹窗 */
.modal-admin,
.modal-import,
.modal-detail {
    max-width: 560px;
}

.admin-add-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.admin-add-row .record-input {
    flex: 1;
}

.student-list-admin {
    max-height: 400px;
    overflow-y: auto;
}

.student-admin-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: var(--input-radius);
    transition: background 150ms ease;
}

.student-admin-item:hover {
    background: var(--surface);
}

.student-admin-item .name {
    font-size: 15px;
}

.student-admin-item .btns {
    display: flex;
    gap: 6px;
}

.student-admin-item .btns button {
    padding: 4px 10px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: transform 100ms ease;
}

.student-admin-item .btns button:active {
    transform: scale(0.95);
}

.btn-edit {
    background: var(--surface);
    color: var(--label);
}

.btn-delete {
    background: rgba(255,59,48,0.1);
    color: var(--error);
}

.btn-score {
    background: rgba(0,122,255,0.1);
    color: var(--primary);
}

/* 分组管理 */
.modal-group,
.modal-group-member,
.modal-group-score {
    max-width: 500px;
}

.group-add-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.group-add-row .record-input {
    flex: 1;
}

.group-list {
    max-height: 400px;
    overflow-y: auto;
}

.group-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--input-radius);
    transition: background 150ms ease;
}

.group-item:hover {
    background: var(--surface);
}

.group-name {
    font-size: 15px;
    font-weight: 600;
    min-width: 80px;
}

.group-count {
    font-size: 13px;
    color: var(--secondary-label);
    margin-right: auto;
}

.group-item .btns {
    display: flex;
    gap: 6px;
}

.group-item .btns button {
    padding: 4px 10px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: transform 100ms ease;
}

.group-item .btns button:active {
    transform: scale(0.95);
}

.member-checklist {
    max-height: 360px;
    overflow-y: auto;
}

.member-check-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--input-radius);
    cursor: pointer;
    transition: background 150ms ease;
}

.member-check-item:hover {
    background: var(--surface);
}

.member-check-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.group-score-records {
    margin-top: 16px;
    border-top: 1px solid var(--separator);
    padding-top: 12px;
}

.group-score-records h3 {
    font-size: 14px;
    color: var(--secondary-label);
    margin-bottom: 8px;
}

/* 导入弹窗 */
.import-dropzone {
    border: 2px dashed var(--separator);
    border-radius: var(--card-radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--secondary-label);
    cursor: pointer;
    transition: border-color 150ms ease, background 150ms ease;
}

.import-dropzone:hover,
.import-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(0,122,255,0.05);
}

.import-preview {
    margin-top: 16px;
}

.import-list {
    max-height: 200px;
    overflow-y: auto;
    margin: 12px 0;
    padding: 8px;
    background: var(--surface);
    border-radius: var(--input-radius);
}

.import-list p {
    padding: 4px 8px;
    font-size: 14px;
}

/* 详情弹窗 */
.detail-content {
    font-size: 15px;
    line-height: 1.6;
}

.detail-content .detail-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.detail-content .detail-row {
    padding: 6px 0;
    border-bottom: 1px solid var(--separator);
}

.detail-content .detail-row:last-child {
    border-bottom: none;
}

.detail-content .detail-total {
    margin-top: 12px;
    font-weight: 600;
    font-size: 16px;
}

/* 响应式 */
@media (max-width: 768px) {
    .toolbar {
        flex-direction: column;
        gap: 8px;
    }
    .toolbar-right {
        flex-wrap: wrap;
        justify-content: center;
    }
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 8px;
        padding: 12px;
    }
    .group-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    .group-bar {
        grid-column: span 1;
    }
    .toolbar-btn span {
        display: none;
    }
    .modal {
        width: 95%;
    }
}

/* 导出弹窗 */
.modal-export {
    max-width: 420px;
}

.export-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 8px;
    border: 2px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    background: var(--bg-card, #fff);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
    color: var(--text-primary, #1d1d1f);
}

.export-option:hover {
    border-color: var(--primary-color, #007AFF);
    background: var(--bg-hover, #f0f8ff);
}

.export-option.active {
    border-color: var(--primary-color, #007AFF);
    background: var(--primary-light, #e8f4fd);
    color: var(--primary-color, #007AFF);
}

.export-option-icon {
    font-size: 22px;
}

.export-option-label {
    font-weight: 500;
}

.export-custom {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.export-date-range {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.export-date-range label {
    font-size: 13px;
    color: var(--text-secondary, #6b7280);
}

.export-date-range .record-input {
    width: 100%;
}

.export-format {
    margin-bottom: 16px;
}

.export-format label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary, #6b7280);
    margin-bottom: 8px;
}

.export-format-options {
    display: flex;
    gap: 8px;
}

.format-btn {
    flex: 1;
    padding: 8px;
    border: 2px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    background: var(--bg-card, #fff);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    color: var(--text-primary, #1d1d1f);
}

.format-btn:hover {
    border-color: var(--primary-color, #007AFF);
}

.format-btn.active {
    border-color: var(--primary-color, #007AFF);
    background: var(--primary-light, #e8f4fd);
    color: var(--primary-color, #007AFF);
    font-weight: 500;
}

/* 累计分数显示 */
.modal-cumulative-score {
    font-size: 14px;
    color: var(--secondary-label, #6b7280);
    margin-left: 8px;
}

.modal-cumulative-score.positive { color: var(--success, #34C759); }
.modal-cumulative-score.negative { color: var(--error, #FF3B30); }

/* 大屏权限设置 */
.modal-display-settings {
    max-width: 480px;
}

.settings-hint {
    font-size: 14px;
    color: var(--secondary-label, #6b7280);
    margin-bottom: 16px;
}

.display-mode-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.display-mode-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border: 2px solid var(--separator, #e5e7eb);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.display-mode-option:hover {
    border-color: var(--primary, #007AFF);
    background: rgba(0, 122, 255, 0.04);
}

.display-mode-option:has(input:checked) {
    border-color: var(--primary, #007AFF);
    background: rgba(0, 122, 255, 0.08);
}

.display-mode-option input[type="radio"] {
    margin-top: 3px;
    accent-color: var(--primary, #007AFF);
}

.mode-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mode-name {
    font-weight: 600;
    font-size: 15px;
}

.mode-desc {
    font-size: 13px;
    color: var(--secondary-label, #6b7280);
}

/* 清零分数 */
.modal-reset-score {
    max-width: 400px;
}

.reset-score-options {
    display: flex;
    gap: 12px;
}

.btn-reset-one {
    flex: 1;
    background: var(--warning, #FF9500);
    color: #fff;
}

.btn-reset-all {
    flex: 1;
    background: var(--error, #FF3B30);
    color: #fff;
}

/* 申诉内容查看 */
.modal-appeal-view {
    max-width: 500px;
}

.appeal-record-info {
    padding: 12px;
    background: var(--surface, #f2f2f7);
    border-radius: 10px;
    margin-bottom: 14px;
    font-size: 14px;
}

.appeal-reason-box {
    margin-bottom: 18px;
}

.appeal-reason-box h4 {
    font-size: 14px;
    color: var(--secondary-label, #6b7280);
    margin-bottom: 6px;
}

.appeal-reason-box p {
    font-size: 15px;
    line-height: 1.6;
    padding: 12px;
    background: var(--surface, #f2f2f7);
    border-radius: 10px;
}

.appeal-actions {
    display: flex;
    gap: 10px;
}

.btn-appeal-ignore {
    flex: 1;
    background: var(--surface, #f2f2f7);
    color: var(--label, #1d1d1f);
}

.btn-appeal-reject {
    flex: 1;
    background: var(--error, #FF3B30);
    color: #fff;
}

.btn-appeal-approve {
    flex: 1;
    background: var(--success, #34C759);
    color: #fff;
}

/* 申诉角标 */
.appeal-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    background: var(--error, #FF3B30);
    color: #fff;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 申诉按钮 */
.appeal-btn {
    padding: 2px 8px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    background: var(--warning, #FF9500);
    color: #fff;
    margin-left: 6px;
}

.appeal-btn.rejected {
    background: var(--error, #FF3B30);
    cursor: default;
}

.appeal-btn.pending {
    background: var(--secondary-label, #6b7280);
    cursor: default;
}

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
    .modal-overlay,
    .modal,
    .student-card,
    .toolbar-btn,
    .action-btn,
    .submit-btn,
    .score-btn {
        transition: none !important;
    }
}