:root{--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:12px;--radius-full:9999px;--text-xs:12px;--text-sm:13px;--text-base:14px;--text-lg:16px;--text-xl:20px;--text-2xl:24px;--z-dropdown:100;--z-drawer:200;--z-modal:300;--z-toast:400;--color-bg:#f5f6fa;--color-card:#fff;--color-sidebar-bg:#1a2332;--color-sidebar-text:#b0bec5;--color-sidebar-highlight:#fff;--color-header-bg:#f8f9fa;--color-border:#e0e4e8;--color-divider:#eceff1;--color-text-primary:#1d2939;--color-text-secondary:#667085;--color-text-placeholder:#98a2b3;--color-text-disabled:#d0d5dd;--color-primary:#1b4f72;--color-primary-hover:#154360;--color-primary-light:#ebf5fb;--color-success:#2e7d32;--color-info:#1565c0;--color-warning:#f57f17;--color-danger:#c62828;--shadow-card:0 1px 3px rgba(0,0,0,.08);--shadow-drawer:-4px 0 20px rgba(0,0,0,.1);--shadow-modal:0 20px 60px rgba(0,0,0,.15);--shadow-dropdown:0 4px 12px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-size:var(--text-base);color:var(--color-text-primary);background:var(--color-bg);line-height:1.5;-webkit-font-smoothing:antialiased}button{cursor:pointer;font-family:inherit}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;min-width:240px;background:var(--color-sidebar-bg);display:flex;flex-direction:column;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-logo{padding:var(--space-5) var(--space-4);color:var(--color-sidebar-highlight);font-size:var(--text-lg);font-weight:700;border-bottom:1px solid hsla(0,0%,100%,.08)}.sidebar-nav{flex:1 1;padding:var(--space-2) 0}.sidebar-section-label{padding:var(--space-3) var(--space-4) var(--space-1);font-size:var(--text-xs);color:var(--color-sidebar-text);text-transform:uppercase;letter-spacing:.05em;opacity:.6}.sidebar-item{display:flex;align-items:center;padding:0 var(--space-4);height:44px;color:var(--color-sidebar-text);font-size:var(--text-base);gap:var(--space-3);cursor:pointer;transition:background .15s,color .15s;border-left:3px solid transparent;text-decoration:none}.sidebar-item:hover{background:hsla(0,0%,100%,.06);color:var(--color-sidebar-highlight);text-decoration:none}.sidebar-item.active{background:hsla(0,0%,100%,.1);color:var(--color-sidebar-highlight);border-left-color:var(--color-primary)}.sidebar-footer{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);font-size:var(--text-xs);color:var(--color-sidebar-text);opacity:.5;border-top:1px solid hsla(0,0%,100%,.08)}.main-area{flex:1 1;display:flex;flex-direction:column;min-width:0}.topbar{height:56px;background:var(--color-card);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 var(--space-6);gap:var(--space-4);position:-webkit-sticky;position:sticky;top:0;z-index:50}.topbar-search{width:100%;height:36px;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:0 var(--space-3) 0 36px;font-size:var(--text-base);outline:none;background:var(--color-bg)}.topbar-search:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px rgba(27,79,114,.15)}.topbar-actions{display:flex;align-items:center;gap:var(--space-3);margin-left:auto}.topbar-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:var(--radius-full);background:var(--color-danger);color:#fff;font-size:var(--text-xs);font-weight:600}.role-selector{padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-card);font-size:var(--text-sm);height:32px;cursor:pointer;outline:none}.page-content{padding:var(--space-6);flex:1 1}.page-header{margin-bottom:var(--space-6)}.page-header-top{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}.page-title{font-size:var(--text-xl);font-weight:700;color:var(--color-text-primary)}.page-description{font-size:var(--text-base);color:var(--color-text-secondary);margin-top:var(--space-1)}.card{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-5)}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:var(--space-4);gap:var(--space-4);margin-bottom:var(--space-6)}.kpi-card{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-5);cursor:pointer;transition:transform .15s,box-shadow .15s;border-left:4px solid var(--color-primary)}.kpi-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.1)}.kpi-card.warning{background:linear-gradient(135deg,#fff5f5,#fff)}.kpi-label{font-size:var(--text-xs);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.kpi-value{font-size:var(--text-2xl);font-weight:700;color:var(--color-text-primary);margin:var(--space-1) 0}.kpi-trend{font-size:var(--text-xs);color:var(--color-text-secondary)}.chart-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--space-4);gap:var(--space-4);margin-bottom:var(--space-6)}@media (max-width:1024px){.kpi-grid{grid-template-columns:repeat(2,1fr)}.chart-grid{grid-template-columns:1fr}}@media (max-width:768px){.sidebar{display:none}.page-content{padding:var(--space-4)}.kpi-grid{grid-template-columns:1fr}.search-input-wrapper{flex-basis:min(100%,280px)}}.table-container{overflow-x:auto}table.data-table{width:100%;border-collapse:collapse}table.data-table 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var(--color-border);border-radius:var(--radius-md);padding:0 var(--space-3);font-size:var(--text-sm);background:var(--color-card);outline:none;min-width:120px}.filter-bar input:focus,.filter-bar select:focus{border-color:var(--color-primary)}.filter-tags{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-3)}.filter-tag{display:inline-flex;align-items:center;gap:var(--space-1);padding:2px 8px;background:var(--color-primary-light);border-radius:var(--radius-full)}.filter-tag,.filter-tag button{color:var(--color-primary);font-size:var(--text-xs)}.filter-tag button{background:none;border:none;padding:0;line-height:1}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;border:1px solid transparent;transition:background .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-card);color:var(--color-text-primary);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b71c1c}.btn-ghost{background:transparent;color:var(--color-text-secondary);border:none;padding:var(--space-1) var(--space-2)}.btn-ghost:hover:not(:disabled){background:var(--color-bg)}.btn-sm{padding:var(--space-1) var(--space-2);font-size:var(--text-xs)}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease-out}.modal-content{background:var(--color-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-modal);width:480px;max-width:90vw;max-height:80vh;overflow-y:auto;padding:var(--space-6);animation:scaleIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}@keyframes slideInRight{0%{transform:translateX(100%)}to{transform:translateX(0)}}.drawer-overlay{inset:0;background:rgba(0,0,0,.3)}.drawer-content,.drawer-overlay{position:fixed;z-index:var(--z-drawer)}.drawer-content{top:0;right:0;bottom:0;width:480px;max-width:90vw;background:var(--color-card);box-shadow:var(--shadow-drawer);display:flex;flex-direction:column;animation:slideInRight .25s ease-out}.drawer-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5);border-bottom:1px solid var(--color-divider)}.drawer-body{flex:1 1;overflow-y:auto;padding:var(--space-5)}.drawer-footer{padding:var(--space-4) var(--space-5);border-top:1px solid var(--color-divider);display:flex;gap:var(--space-3);justify-content:flex-end}.toast-container{position:fixed;top:var(--space-4);right:var(--space-4);z-index:var(--z-toast);flex-direction:column}.toast,.toast-container{display:flex;gap:var(--space-2)}.toast{align-items:center;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);background:var(--color-card);box-shadow:var(--shadow-dropdown);font-size:var(--text-sm);animation:toastIn .2s ease-out;min-width:280px;border-left:4px solid var(--color-primary)}.toast.success{border-left-color:var(--color-success)}.toast.warning{border-left-color:var(--color-warning)}.toast.error{border-left-color:var(--color-danger)}@keyframes toastIn{0%{transform:translateY(-8px);opacity:0}to{transform:translateY(0);opacity:1}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-10) var(--space-6);color:var(--color-text-secondary);text-align:center}.empty-state svg{margin-bottom:var(--space-4);opacity:.4}.empty-state h3{font-size:var(--text-lg);color:var(--color-text-primary);margin-bottom:var(--space-2)}.empty-state p{font-size:var(--text-sm)}.empty-state p,.form-group{margin-bottom:var(--space-4)}.form-label{display:block;font-size:var(--text-sm);font-weight:500;color:#344054;margin-bottom:var(--space-1)}.form-label .required{color:var(--color-danger);margin-left:2px}.form-input{width:100%;height:36px;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:0 var(--space-3);font-size:var(--text-sm);outline:none}.form-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px rgba(27,79,114,.15)}.form-input.error{border-color:var(--color-danger)}.form-textarea{width:100%;min-height:80px;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);font-size:var(--text-sm);outline:none;resize:vertical;font-family:inherit}.form-textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px rgba(27,79,114,.15)}.form-error{color:var(--color-danger);font-size:var(--text-xs);margin-top:var(--space-1)}.form-select{width:100%;height:36px;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:0 var(--space-3);font-size:var(--text-sm);background:var(--color-card);outline:none}.detail-section{margin-bottom:var(--space-5)}.detail-section-title{font-size:var(--text-lg);font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-3);padding-bottom:var(--space-2);border-bottom:1px solid var(--color-divider)}.info-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--space-3);gap:var(--space-3)}.info-item{display:flex;flex-direction:column;gap:2px}.info-label{font-size:var(--text-xs);color:var(--color-text-secondary)}.info-value{font-size:var(--text-sm);color:var(--color-text-primary);font-weight:500}.tag{display:inline-flex;align-items:center;padding:2px 8px;background:var(--color-bg);color:var(--color-text-secondary);border-radius:var(--radius-sm);font-size:var(--text-xs);margin:2px}.tabs{display:flex;border-bottom:2px solid var(--color-divider);margin-bottom:var(--space-5);gap:0}.tab{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:500;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;color:var(--color-text-secondary);cursor:pointer;transition:color .15s,border-color .15s}.tab:hover{color:var(--color-text-primary)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.risk-banner{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4)}.risk-banner.severe{background:#ffebee;color:#c62828;border:1px solid #ffcdd2}.pagination{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-2);padding:var(--space-3) 0;font-size:var(--text-sm);color:var(--color-text-secondary)}.pagination button{padding:var(--space-1) var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-card);cursor:pointer}.pagination button:disabled{opacity:.4;cursor:not-allowed}.pagination button:hover:not(:disabled){background:var(--color-bg)}.search-icon{position:absolute;left:var(--space-3);top:50%;transform:translateY(-50%);color:var(--color-text-placeholder);pointer-events:none}.search-input-wrapper{position:relative;flex:0 1 520px}.loading-skeleton{background:linear-gradient(90deg,var(--color-divider) 25%,#f0f2f5 50%,var(--color-divider) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.seal-stamp{display:inline-flex;align-items:center;justify-content:center;width:80px;height:80px;border-radius:50%;border:3px solid var(--color-danger);color:var(--color-danger);font-size:var(--text-sm);font-weight:700;animation:stampAnim .4s ease-out}@keyframes stampAnim{0%{transform:scale(0) rotate(-5deg)}70%{transform:scale(1.1) rotate(0deg)}to{transform:scale(1) rotate(0deg)}}.shutdown-seal{position:relative;overflow:hidden}.shutdown-seal:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent,transparent 10px,rgba(198,40,40,.08) 0,rgba(198,40,40,.08) 20px);pointer-events:none}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;transition-duration:.01ms!important}}.stat-section{display:flex;flex-wrap:wrap;gap:var(--space-4);margin-bottom:var(--space-4)}.stat-item{flex:1 1;min-width:120px;padding:var(--space-3) var(--space-4);background:var(--color-bg);border-radius:var(--radius-md)}.stat-item .stat-label{font-size:var(--text-xs);color:var(--color-text-secondary)}.stat-item .stat-value{font-size:var(--text-lg);font-weight:700;color:var(--color-text-primary)}.request-card{border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);margin-bottom:var(--space-3);background:var(--color-card)}.request-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-2)}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:var(--space-4);gap:var(--space-4)}.steps{display:flex;gap:0;margin-bottom:var(--space-6);border-bottom:1px solid var(--color-divider)}.step{flex:1 1;padding:var(--space-3);text-align:center;font-size:var(--text-sm);color:var(--color-text-secondary);border-bottom:3px solid transparent}.step.active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}.step.completed{color:var(--color-success);border-bottom-color:var(--color-success)}@media (max-width:768px){.form-row,.info-grid{grid-template-columns:1fr}.pagination{justify-content:center}}