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#1a1a1a;--color-primary-hover: #333333;--color-primary-active: #000000;--bg-body: #f5f5f5;--bg-card: #ffffff;--bg-sidebar: #1a1a1a;--bg-header: #ffffff;--text-primary: #1a1a1a;--text-secondary: #666666;--text-tertiary: #999999;--text-inverse: #ffffff;--border-color: #e8e8e8;--border-color-dark: #d9d9d9;--color-accent-blue: #0066ff;--color-accent-blue-light: #e6f0ff;--color-accent-gold: #d4af37;--color-success: #52c41a;--color-success-light: #f6ffed;--color-warning: #faad14;--color-warning-light: #fffbe6;--color-error: #ff4d4f;--color-error-light: #fff2f0;--color-info: #1890ff;--color-info-light: #e6f7ff}:root{--font-family-cn: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--font-family-en: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-md: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.5;--line-height-normal: 1.6;--line-height-relaxed: 1.8}:root{--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--spacing-3xl: 64px}:root{--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}.ant-btn-primary{background-color:var(--color-primary)!important;border-color:var(--color-primary)!important;font-weight:var(--font-weight-medium)}.ant-btn-primary:hover{background-color:var(--color-primary-hover)!important;border-color:var(--color-primary-hover)!important}.ant-btn-primary:active{background-color:var(--color-primary-active)!important;border-color:var(--color-primary-active)!important}.ant-btn-default{border-color:var(--border-color-dark);color:var(--text-primary)}.ant-btn-default:hover{border-color:var(--color-primary);color:var(--color-primary)}.ant-input,.ant-input-textarea,.ant-select-selector,.ant-form-item-control-input-content{border-color:var(--border-color-dark)!important;border-radius:var(--radius-sm)!important}.ant-input:focus,.ant-input-textarea:focus,.ant-select-focused .ant-select-selector{border-color:var(--color-accent-blue)!important;box-shadow:0 0 0 2px var(--color-accent-blue-light)!important}.ant-form-item-label>label{font-weight:var(--font-weight-medium);color:var(--text-primary)}.ant-table{font-size:var(--font-size-sm)}.ant-table-thead>tr>th{background-color:#fafafa;font-weight:var(--font-weight-semibold);color:var(--text-primary);border-bottom:1px solid var(--border-color)}.ant-table-tbody>tr:hover>td{background-color:#fafafa}.ant-table-tbody>tr>td{border-bottom:1px solid var(--border-color)}.ant-tag{border-radius:var(--radius-sm);font-weight:var(--font-weight-medium);padding:2px 12px}.tag-status-open{background-color:#f5f5f5;color:#666;border-color:#d9d9d9}.tag-status-assigned{background-color:var(--color-warning-light);color:var(--color-warning);border-color:var(--color-warning)}.tag-status-in_progress{background-color:var(--color-info-light);color:var(--color-info);border-color:var(--color-info)}.tag-status-solved{background-color:var(--color-success-light);color:var(--color-success);border-color:var(--color-success)}.tag-status-closed{background-color:#f5f5f5;color:#999;border-color:#d9d9d9}.tag-priority-low{background-color:#f5f5f5;color:#999}.tag-priority-medium{background-color:var(--color-accent-blue-light);color:var(--color-accent-blue)}.tag-priority-high{background-color:#fff7e6;color:#fa8c16}.tag-priority-urgent{background-color:var(--color-error-light);color:var(--color-error)}.ant-card{border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.ant-card-head{background-color:#fafafa;border-bottom:1px solid var(--border-color);font-weight:var(--font-weight-semibold)}.ant-descriptions-bordered .ant-descriptions-item-label{background-color:#fafafa;font-weight:var(--font-weight-medium)}.ant-menu-dark{background:var(--bg-sidebar)!important}.ant-menu-dark .ant-menu-item-selected{background-color:var(--color-accent-blue)!important}.ant-menu-dark .ant-menu-item:hover{background-color:#ffffff1a}.ant-timeline-item-content{color:var(--text-primary)}.ant-timeline-item-head{border-color:var(--color-accent-blue)}.ant-notification-notice{border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.ant-message{font-size:var(--font-size-sm)}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.text-accent{color:var(--color-accent-blue)}.fw-medium{font-weight:var(--font-weight-medium)}.fw-semibold{font-weight:var(--font-weight-semibold)}.fw-bold{font-weight:var(--font-weight-bold)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}@media (max-width: 768px){:root{--font-size-sm: 13px;--font-size-md: 15px}.content-card{padding:var(--spacing-md)}.table-toolbar{flex-direction:column;gap:var(--spacing-md)}}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;font-family:var(--font-family-cn);font-size:var(--font-size-sm);line-height:var(--line-height-normal);color:var(--text-primary);background-color:var(--bg-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{width:100%;height:100%}.main-layout{min-height:100vh}.sidebar-logo{height:64px;display:flex;align-items:center;justify-content:center;background:var(--bg-sidebar);color:var(--text-inverse);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);border-bottom:1px solid rgba(255,255,255,.1)}.content-card{background:var(--bg-card);border-radius:var(--radius-md);padding:var(--spacing-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#1a1a1a,#4a4a4a)}.login-box{width:420px;padding:48px;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);border:1px solid var(--border-color)}.login-title{text-align:center;margin-bottom:40px;color:var(--text-primary);font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold)}.login-title span{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-normal);color:var(--text-secondary);margin-top:var(--spacing-sm)}.table-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color)}.tag-group{display:flex;flex-wrap:wrap;gap:var(--spacing-xs)}.detail-section{margin-bottom:var(--spacing-lg)}.detail-label{font-weight:var(--font-weight-semibold);color:var(--text-secondary);margin-bottom:var(--spacing-sm);font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.5px}.detail-content{color:var(--text-primary);line-height:var(--line-height-relaxed)}.timeline-card{background:var(--bg-card);border-radius:var(--radius-md);padding:var(--spacing-lg);border:1px solid var(--border-color)}.timeline-item{position:relative;padding-left:var(--spacing-lg);padding-bottom:var(--spacing-lg);border-left:2px solid var(--border-color)}.timeline-item:last-child{border-left:2px solid transparent}.timeline-item:before{content:"";position:absolute;left:-6px;top:0;width:10px;height:10px;border-radius:50%;background:var(--color-accent-blue);border:2px solid var(--bg-card)}.timeline-item.assigned:before{background:var(--color-warning)}.timeline-item.solved:before{background:var(--color-success)}.timeline-item.commented:before{background:var(--color-info)}.timeline-time{font-size:var(--font-size-xs);color:var(--text-tertiary);margin-bottom:var(--spacing-xs)}.timeline-content{color:var(--text-primary);line-height:var(--line-height-normal)}.timeline-actor{font-weight:var(--font-weight-medium);color:var(--text-primary)}.empty-state{text-align:center;padding:var(--spacing-3xl);color:var(--text-tertiary)}.empty-state-icon{font-size:64px;margin-bottom:var(--spacing-md);opacity:.3}.empty-state-text{font-size:var(--font-size-lg);color:var(--text-secondary)}.loading-container{display:flex;justify-content:center;align-items:center;min-height:400px}@media (max-width: 768px){.content-card{padding:var(--spacing-md)}.table-toolbar{flex-direction:column;gap:var(--spacing-md);align-items:stretch}.login-box{width:90%;padding:32px 24px}}