.students-panel[data-v-ed31f872]{padding:24px;background:var(--classroom-bg);min-height:100vh}.header[data-v-ed31f872]{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;padding:24px;background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(74,144,226,.08)}.header-left h3[data-v-ed31f872]{margin:0 0 8px 0;font-size:24px;font-weight:700;color:var(--classroom-text)}.subtitle[data-v-ed31f872]{font-size:14px;color:var(--classroom-text-secondary);margin:0}.header-actions[data-v-ed31f872]{display:flex;gap:12px}.header .classroom-btn[data-v-ed31f872]{display:flex;align-items:center;gap:6px;padding:10px 20px;font-size:14px;white-space:nowrap}.stats-row[data-v-ed31f872]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:24px}.table-card[data-v-ed31f872]{margin-bottom:20px}.classroom-card[data-v-ed31f872]{border-radius:12px;box-shadow:0 2px 8px rgba(74,144,226,.08);overflow:hidden}.classroom-card[data-v-ed31f872] .el-card__body{padding:20px}.action-buttons[data-v-ed31f872]{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.action-buttons .classroom-btn[data-v-ed31f872]{display:inline-flex;align-items:center;gap:4px;padding:6px 14px;font-size:13px;margin:0}.classroom-dialog[data-v-ed31f872] .el-dialog__header{background:#e3f2fd;border-bottom:2px solid var(--classroom-primary);padding:20px 24px}.classroom-dialog[data-v-ed31f872] .el-dialog__title{color:var(--classroom-text);font-weight:600;font-size:18px}.classroom-dialog[data-v-ed31f872] .el-dialog__body{padding:24px}.edit-form .el-form-item[data-v-ed31f872]{margin-bottom:20px}.edit-form .el-form-item[data-v-ed31f872]:last-child{margin-bottom:0}.edit-form[data-v-ed31f872] .el-form-item__label{font-size:14px;font-weight:500;color:var(--classroom-text);line-height:36px}.edit-form[data-v-ed31f872] .el-input__inner{height:36px;line-height:36px;font-size:14px}.gender-radio-group[data-v-ed31f872]{display:flex;gap:20px}.dialog-footer[data-v-ed31f872]{display:flex;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid var(--classroom-border)}.students-panel[data-v-ed31f872] .el-table{font-size:14px;border-radius:8px;overflow:hidden}.students-panel[data-v-ed31f872] .el-table th{font-size:14px;font-weight:600;background:#e3f2fd;color:var(--classroom-text);border-bottom:2px solid var(--classroom-primary);padding:16px 12px;text-align:left}.students-panel[data-v-ed31f872] .el-table td{font-size:14px;border-bottom:1px solid var(--classroom-border);padding:14px 12px}.students-panel[data-v-ed31f872] .el-table--striped .el-table__body tr.el-table__row--striped td{background:var(--classroom-hover)}.students-panel[data-v-ed31f872] .el-table__body tr:hover>td{background:var(--classroom-hover)!important}.add-student-dialog[data-v-ed31f872]{padding:0}.search-section[data-v-ed31f872]{margin-bottom:20px}.search-section .search-input[data-v-ed31f872]{width:100%}.search-results[data-v-ed31f872]{margin-bottom:20px;max-height:300px;overflow-y:auto;border:1px solid var(--classroom-border);border-radius:8px;padding:12px}.results-header[data-v-ed31f872]{font-size:14px;font-weight:600;color:var(--classroom-text);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--classroom-border)}.results-list[data-v-ed31f872]{display:flex;flex-direction:column;gap:8px}.user-item[data-v-ed31f872]{display:flex;justify-content:space-between;align-items:center;padding:12px;border:1px solid var(--classroom-border);border-radius:6px;cursor:pointer;transition:all .2s;background:#fff}.user-item[data-v-ed31f872]:hover{background:var(--classroom-hover);border-color:var(--classroom-primary)}.user-item.selected[data-v-ed31f872]{background:#e3f2fd;border-color:var(--classroom-primary)}.user-info[data-v-ed31f872]{flex:1}.user-name[data-v-ed31f872]{font-size:14px;font-weight:600;color:var(--classroom-text);margin-bottom:4px}.user-details[data-v-ed31f872]{font-size:13px;color:var(--classroom-text-secondary);margin-bottom:2px}.user-details .nickname[data-v-ed31f872]{color:#999;margin-left:4px}.user-email[data-v-ed31f872]{font-size:12px;color:var(--classroom-text-secondary)}.selected-icon[data-v-ed31f872]{font-size:20px;color:var(--classroom-primary)}.student-form[data-v-ed31f872]{margin-top:20px}.selected-user-display[data-v-ed31f872]{font-size:14px;color:var(--classroom-text);padding:8px 12px;background:#f5f5f5;border-radius:4px}@media (max-width:768px){.header[data-v-ed31f872]{flex-direction:column;gap:16px}.header .classroom-btn[data-v-ed31f872]{width:100%}.stats-row[data-v-ed31f872]{grid-template-columns:1fr}.action-buttons[data-v-ed31f872]{flex-direction:column}.action-buttons .classroom-btn[data-v-ed31f872]{width:100%}}.random-pick-container[data-v-1b83a511]{display:flex;flex-direction:column;gap:24px;padding:24px;background:var(--classroom-bg);min-height:100vh}.action-card[data-v-1b83a511]{background:#4a90e2;border:none}.action-card[data-v-1b83a511] .el-card__body{padding:32px}.action-section[data-v-1b83a511]{display:flex;justify-content:space-between;align-items:center;gap:20px}.action-info h3[data-v-1b83a511]{color:#fff;margin:0 0 12px 0;font-size:28px;font-weight:700}.student-count[data-v-1b83a511]{color:hsla(0,0%,100%,.95);font-size:15px;margin:0}.action-section .classroom-btn[data-v-1b83a511]{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--classroom-primary);border:none;font-weight:600;padding:14px 36px;font-size:16px;white-space:nowrap;flex-shrink:0}.action-section .classroom-btn[data-v-1b83a511]:hover{background:#f0f0f0;box-shadow:0 4px 12px rgba(0,0,0,.15)}.action-section .classroom-btn[data-v-1b83a511]:disabled{background:hsla(0,0%,100%,.5);cursor:not-allowed}.result-card[data-v-1b83a511]{border:2px solid var(--classroom-success)}.result-card[data-v-1b83a511] .el-card__header{padding:20px 24px;background:#e8f5e9}.result-card[data-v-1b83a511] .el-card__body{padding:24px}.result-header[data-v-1b83a511]{display:flex;justify-content:space-between;align-items:center;font-size:18px;font-weight:600;color:var(--classroom-success)}.student-display[data-v-1b83a511]{display:flex;gap:40px;align-items:center;padding:20px 0}.student-avatar[data-v-1b83a511]{flex-shrink:0}.student-details[data-v-1b83a511]{flex:1}.student-name[data-v-1b83a511]{font-size:36px;color:#4a90e2;margin:0 0 24px 0;font-weight:700}.detail-row[data-v-1b83a511]{display:flex;margin-bottom:16px;font-size:15px;align-items:center}.detail-row[data-v-1b83a511]:last-child{margin-bottom:0}.detail-row .label[data-v-1b83a511]{color:var(--classroom-text-secondary);min-width:100px;font-weight:500;padding-right:12px}.detail-row .value[data-v-1b83a511]{color:var(--classroom-text);font-weight:600}.pick-time[data-v-1b83a511]{margin-top:24px;color:var(--classroom-text-secondary);font-size:14px;padding:10px 16px;background:var(--classroom-bg);border-radius:8px;display:inline-flex;align-items:center;gap:8px}.pick-time i[data-v-1b83a511]{font-size:16px;color:var(--classroom-primary)}.placeholder-card[data-v-1b83a511]{text-align:center;padding:80px 20px}.placeholder-content i[data-v-1b83a511]{font-size:100px;color:var(--classroom-primary-lighter);margin-bottom:24px;display:block}.placeholder-content p[data-v-1b83a511]{font-size:16px;color:var(--classroom-text-secondary);margin:0}.history-card[data-v-1b83a511]{margin-top:0}.history-card[data-v-1b83a511] .el-card__header{padding:20px 24px}.history-card[data-v-1b83a511] .el-card__body{padding:20px}.history-header[data-v-1b83a511]{display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:600;color:var(--classroom-text);gap:16px}.history-header .classroom-btn[data-v-1b83a511]{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;font-size:14px;white-space:nowrap}.random-pick-container[data-v-1b83a511] .el-table{border-radius:8px;overflow:hidden;font-size:14px;background:#fff}.random-pick-container[data-v-1b83a511] .el-table th{background:#e3f2fd;color:var(--classroom-text);font-weight:600;border-bottom:2px solid var(--classroom-primary);padding:16px 12px;text-align:left}.random-pick-container[data-v-1b83a511] .el-table td{border-bottom:1px solid var(--classroom-border);padding:14px 12px;font-size:14px;transition:background-color .2s ease}.random-pick-container[data-v-1b83a511] .el-table--striped .el-table__body tr.el-table__row--striped td{background:#fafafa}.random-pick-container[data-v-1b83a511] .el-table__body tr.el-table__row--striped:hover>td,.random-pick-container[data-v-1b83a511] .el-table__body tr:hover>td{background:#e3f2fd!important}@media (max-width:768px){.action-section[data-v-1b83a511]{flex-direction:column;gap:20px;text-align:center}.action-section .classroom-btn[data-v-1b83a511]{width:100%;justify-content:center}.student-display[data-v-1b83a511]{flex-direction:column;text-align:center;gap:20px}.detail-row[data-v-1b83a511]{justify-content:center}.detail-row .label[data-v-1b83a511]{min-width:auto;width:auto}.history-header[data-v-1b83a511]{flex-direction:column;gap:12px;align-items:flex-start}.history-header .classroom-btn[data-v-1b83a511]{width:100%}}.homework-panel[data-v-e5bb45e8]{padding:24px;background:var(--classroom-bg);min-height:100vh;max-width:1400px;margin:0 auto}.header[data-v-e5bb45e8]{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding:20px 24px;background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(74,144,226,.08)}.header h3[data-v-e5bb45e8]{font-size:22px;color:var(--classroom-text);margin:0;font-weight:700}.homework-list[data-v-e5bb45e8]{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:24px}.homework-card[data-v-e5bb45e8]{background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(74,144,226,.08);overflow:hidden;transition:all .3s ease;border:1px solid var(--classroom-border)}.homework-card[data-v-e5bb45e8]:hover{box-shadow:0 8px 24px rgba(74,144,226,.15);transform:translateY(-4px)}.homework-card-header[data-v-e5bb45e8]{display:flex;justify-content:space-between;align-items:flex-start;padding:20px;background:#e3f2fd;border-bottom:2px solid var(--classroom-primary)}.homework-title[data-v-e5bb45e8]{margin:0;font-size:18px;font-weight:600;color:var(--classroom-text);flex:1;padding-right:16px}.homework-actions[data-v-e5bb45e8]{display:flex;gap:8px;flex-shrink:0}.homework-actions .classroom-btn[data-v-e5bb45e8]{padding:8px 16px;font-size:13px}.homework-body[data-v-e5bb45e8]{padding:20px}.homework-info[data-v-e5bb45e8]{margin-bottom:16px}.info-row[data-v-e5bb45e8]{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:14px}.info-row[data-v-e5bb45e8]:last-child{margin-bottom:0}.info-icon[data-v-e5bb45e8]{font-size:18px;color:var(--classroom-primary)}.info-label[data-v-e5bb45e8]{font-weight:500;color:var(--classroom-text-secondary);min-width:80px}.info-value[data-v-e5bb45e8]{color:var(--classroom-text);font-weight:500}.homework-status[data-v-e5bb45e8]{display:flex;justify-content:flex-start}.delete-confirm-content[data-v-e5bb45e8]{text-align:center;padding:20px}.delete-confirm-content i[data-v-e5bb45e8]{font-size:48px;color:var(--classroom-warning);margin-bottom:16px;display:block}.delete-confirm-content p[data-v-e5bb45e8]{font-size:16px;color:var(--classroom-text);margin:0}.classroom-dialog .el-dialog__header[data-v-e5bb45e8]{background:#e3f2fd;border-bottom:2px solid var(--classroom-primary)}.classroom-dialog .el-dialog__title[data-v-e5bb45e8]{color:var(--classroom-text);font-weight:600}@media (max-width:768px){.homework-list[data-v-e5bb45e8]{grid-template-columns:1fr}.homework-card-header[data-v-e5bb45e8]{flex-direction:column;gap:16px}.homework-actions[data-v-e5bb45e8]{width:100%;flex-direction:column}.homework-actions .classroom-btn[data-v-e5bb45e8]{width:100%}.header[data-v-e5bb45e8]{flex-direction:column;gap:16px;align-items:stretch}.header .classroom-btn[data-v-e5bb45e8]{width:100%}}.student-discussion[data-v-0edb72e6]{padding:8px;display:flex;flex-direction:column;height:calc(100vh - 10px);background:var(--classroom-bg);max-width:1400px;margin:0 auto;width:100%}.discussion-header[data-v-0edb72e6]{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;padding:8px 12px;background:#fff;border-radius:6px;box-shadow:0 2px 8px rgba(74,144,226,.08)}.discussion-header h3[data-v-0edb72e6]{font-size:16px;color:var(--classroom-text);margin:0;font-weight:700}.picked-student[data-v-0edb72e6]{margin-bottom:6px}.message-list[data-v-0edb72e6]{flex:1;overflow-y:auto;border-radius:6px;padding:8px;margin-bottom:6px;background:#fff;box-shadow:0 2px 8px rgba(74,144,226,.08)}.message-item[data-v-0edb72e6]{display:flex;margin-bottom:20px;animation:messageFadeIn-0edb72e6 .3s ease}@keyframes messageFadeIn-0edb72e6{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.other-message[data-v-0edb72e6]{flex-direction:row}.other-message .message-avatar[data-v-0edb72e6]{margin-right:12px}.other-message .message-body[data-v-0edb72e6]{align-items:flex-start}.other-message .message-meta[data-v-0edb72e6]{flex-direction:row}.other-message .message-bubble[data-v-0edb72e6]{background:#f5f7fa;color:var(--classroom-text)}.own-message[data-v-0edb72e6]{flex-direction:row-reverse}.own-message .message-avatar[data-v-0edb72e6]{margin-left:12px;margin-right:0}.own-message .message-body[data-v-0edb72e6]{align-items:flex-end}.own-message .message-meta[data-v-0edb72e6]{flex-direction:row-reverse}.own-message .message-bubble[data-v-0edb72e6]{background:#4a90e2;color:#fff}.own-message .sender-name[data-v-0edb72e6]{display:none}.message-avatar[data-v-0edb72e6]{flex-shrink:0}.message-body[data-v-0edb72e6]{display:flex;flex-direction:column;max-width:70%}.message-meta[data-v-0edb72e6]{display:flex;gap:8px;margin-bottom:6px;font-size:12px}.sender-name[data-v-0edb72e6]{font-weight:600;color:var(--classroom-text)}.message-time[data-v-0edb72e6]{color:#909399}.message-bubble[data-v-0edb72e6]{padding:12px 16px;border-radius:12px;word-break:break-word;white-space:pre-wrap;box-shadow:0 1px 2px rgba(0,0,0,.1);position:relative}.other-message .message-bubble[data-v-0edb72e6]{border-top-left-radius:4px}.own-message .message-bubble[data-v-0edb72e6]{border-top-right-radius:4px}.bubble-content[data-v-0edb72e6]{line-height:1.6}.bubble-content img[data-v-0edb72e6]{max-width:100%;max-height:300px;border-radius:8px;margin-top:8px}.bubble-image img[data-v-0edb72e6]{max-width:100%;max-height:300px;border-radius:8px;display:block}.recall-btn[data-v-0edb72e6]{margin-top:6px;padding:4px 8px;font-size:12px;color:#909399}.recall-btn[data-v-0edb72e6]:hover{color:#f56c6c}.system-message[data-v-0edb72e6]{display:flex;justify-content:center;margin:15px 0}.system-message-content[data-v-0edb72e6]{background:#fff9e6;color:#e6a23c;padding:8px 16px;border-radius:16px;font-size:13px;border:1px solid #ffeaa7;box-shadow:0 1px 2px rgba(230,162,60,.2)}.message-input[data-v-0edb72e6]{border:1px solid var(--classroom-border);border-radius:8px;padding:10px;background:#fff;box-shadow:0 2px 8px rgba(74,144,226,.08)}.message-input .actions[data-v-0edb72e6]{display:flex;justify-content:space-between;margin-top:8px;gap:8px}.message-input .el-textarea[data-v-0edb72e6]{font-size:14px}.emoji-picker[data-v-0edb72e6]{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;max-height:200px;overflow-y:auto;padding:10px}.emoji-item[data-v-0edb72e6]{font-size:24px;cursor:pointer;text-align:center;padding:5px;border-radius:4px;transition:background-color .2s}.emoji-item[data-v-0edb72e6]:hover{background-color:#f5f7fa}@media (max-width:768px){.student-discussion[data-v-0edb72e6]{padding:16px}.message-body[data-v-0edb72e6]{max-width:85%}.discussion-header[data-v-0edb72e6]{padding:16px}.message-list[data-v-0edb72e6]{padding:12px}}