:root {
  --primary: #2563EB; --primary-hover: #1D4ED8; --primary-light: #EFF6FF;
  --success: #059669; --success-light: #ECFDF5;
  --warning: #D97706; --warning-light: #FFFBEB;
  --danger: #DC2626; --danger-light: #FEF2F2;
  --gray-50: #F9FAFB; --gray-100: #F3F4F6; --gray-200: #E5E7EB; --gray-300: #D1D5DB;
  --gray-400: #9CA3AF; --gray-500: #6B7280; --gray-600: #4B5563; --gray-700: #374151;
  --gray-800: #1F2937; --gray-900: #111827; --white: #FFFFFF;
  --radius-sm: 6px; --radius: 8px; --radius-lg: 12px; --radius-xl: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1),0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07),0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1),0 4px 6px rgba(0,0,0,0.05);
  --transition: all 0.2s ease;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family: -apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:#F1F5F9;color:var(--gray-800);line-height:1.6;min-height:100vh;
}

/* Layout */
.app-container{display:flex;min-height:100vh;}
.sidebar{
  width:240px;background:var(--gray-900);color:var(--white);padding:0;
  display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:var(--transition);
}
.sidebar-logo{padding:24px 20px;border-bottom:1px solid rgba(255,255,255,0.08);}
.sidebar-logo h2{font-size:17px;font-weight:700;letter-spacing:-0.3px;}
.sidebar-logo span{font-size:11px;color:rgba(255,255,255,0.45);display:block;margin-top:2px;}
.sidebar-nav{flex:1;padding:12px 8px;}
.nav-section-title{
  font-size:11px;color:rgba(255,255,255,0.3);text-transform:uppercase;
  padding:16px 16px 6px;letter-spacing:0.5px;font-weight:600;
}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:var(--radius);
  cursor:pointer;transition:var(--transition);font-size:13px;color:rgba(255,255,255,0.6);
  margin-bottom:1px;text-decoration:none;border:none;background:none;width:100%;text-align:left;
}
.nav-item:hover{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.9);}
.nav-item.active{background:var(--primary);color:var(--white);font-weight:500;}
.nav-icon{font-size:16px;width:18px;text-align:center;flex-shrink:0;}
.nav-badge{margin-left:auto;background:var(--danger);color:white;font-size:10px;padding:2px 7px;border-radius:10px;font-weight:500;}
.sidebar-footer{padding:14px 20px;border-top:1px solid rgba(255,255,255,0.08);font-size:11px;color:rgba(255,255,255,0.35);}
.main-content{flex:1;margin-left:240px;padding:32px;}


/* Header */
.page-header{margin-bottom:28px;}
.page-header h1{font-size:24px;font-weight:700;color:var(--gray-900);letter-spacing:-0.5px;}
.page-header p{color:var(--gray-500);font-size:13px;margin-top:4px;}
.breadcrumb{font-size:12px;color:var(--gray-400);margin-bottom:16px;}
.breadcrumb a{color:var(--primary);text-decoration:none;cursor:pointer;}
.breadcrumb a:hover{text-decoration:underline;}

/* Cards */
.card{background:var(--white);border-radius:var(--radius-lg);padding:24px 28px;box-shadow:var(--shadow);margin-bottom:20px;}
.card-title{font-size:15px;font-weight:600;color:var(--gray-900);margin-bottom:20px;display:flex;align-items:center;gap:8px;}
.card-subtitle{font-size:13px;color:var(--gray-500);font-weight:400;margin-left:4px;}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--radius);
  font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition);border:none;
  font-family:inherit;text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:white;}
.btn-primary:hover{background:var(--primary-hover);}
.btn-outline{background:var(--white);color:var(--gray-700);border:1px solid var(--gray-300);}
.btn-outline:hover{background:var(--gray-50);border-color:var(--gray-400);}
.btn-ghost{background:transparent;color:var(--gray-600);}
.btn-ghost:hover{background:var(--gray-100);}
.btn-lg{padding:13px 26px;font-size:15px;}
.btn-sm{padding:5px 12px;font-size:12px;}
.btn-block{width:100%;justify-content:center;}
.btn:disabled{opacity:0.5;cursor:not-allowed;pointer-events:none;}
.btn-danger{background:var(--danger);color:white;}
.btn-danger:hover{background:#B91C1C;}
.btn-success{background:var(--success);color:white;}
.btn-success:hover{background:#047857;}
.action-bar{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;}
.action-bar-left{display:flex;gap:12px;justify-content:flex-start;margin-top:24px;}

/* Form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;}
.form-grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-size:12px;font-weight:500;color:var(--gray-600);}
.form-group input,.form-group select,.form-group textarea{
  padding:9px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);
  font-size:13px;color:var(--gray-800);transition:var(--transition);font-family:inherit;background:var(--white);
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.1);
}
.form-group input.readonly,.form-group select.readonly{background:var(--gray-50);color:var(--gray-500);}
.form-group textarea{resize:vertical;min-height:80px;}
.required::after{content:' *';color:var(--danger);}

/* Input with inline unit label */
.form-group .input-row{display:flex;align-items:center;gap:8px;}
.form-group .input-row input{flex:1;min-width:0;}
.form-group .input-unit{font-size:12px;color:var(--gray-400);white-space:nowrap;font-weight:400;}

/* Table */
.table-wrapper{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13px;}
table th{background:var(--gray-50);padding:10px 14px;text-align:left;font-weight:600;color:var(--gray-600);font-size:12px;border-bottom:2px solid var(--gray-200);white-space:nowrap;}
table td{padding:12px 14px;border-bottom:1px solid var(--gray-100);color:var(--gray-700);}
table tr:hover td{background:var(--gray-50);}
table tr.clickable{cursor:pointer;}
table tr.clickable:hover td{background:var(--primary-light);}
.saving-highlight{color:var(--success);font-weight:600;}
.empty-state{text-align:center;padding:48px 20px;color:var(--gray-400);}

/* Hourly Table */
.table-hourly{font-size:12px;}
.table-hourly th{font-size:11px;padding:8px 10px;text-align:center;}
.table-hourly td{text-align:center;padding:7px 10px;}
.table-hourly td:first-child{font-weight:500;color:var(--gray-600);text-align:left;padding-left:14px;}
.table-hourly td:nth-child(2){text-align:right;padding-right:14px;}
.table-hourly .cell-xishi{color:#1D4ED8;font-weight:500;}
.table-hourly .cell-market{color:#DC2626;font-weight:500;}
.table-hourly .cell-diff-positive{color:var(--success);font-weight:600;}
.table-hourly .cell-diff-negative{color:var(--danger);font-weight:600;}
.table-hourly .row-peak td{background:#FEF2F2;}
.table-hourly .row-flat td{background:#FFFBEB;}
.table-hourly .row-valley td{background:#ECFDF5;}
.table-hourly tfoot td{font-weight:700;font-size:12px;border-top:2px solid var(--gray-300);background:var(--gray-50);}
.table-hourly tfoot td:first-child{color:var(--gray-700);}
.table-hourly .hourly-chart-bar{
  display:inline-block;height:6px;border-radius:3px;min-width:3px;
  background:linear-gradient(90deg,#3B82F6,#60A5FA);
}

/* TOU type tags */
.tou-tag{display:inline-block;font-size:10px;padding:2px 8px;border-radius:10px;font-weight:500;}
.tou-tag.tou-peak{background:#FEE2E2;color:#991B1B;}
.tou-tag.tou-flat{background:#FEF3C7;color:#92400E;}
.tou-tag.tou-valley{background:#D1FAE5;color:#065F46;}

/* Fixed price input */
.fp-input,.fp-input-k,.fp-input-p{font-family:inherit;}
.fp-input:focus,.fp-input-k:focus,.fp-input-p:focus{outline:2px solid var(--primary);border-color:var(--primary);}

/* Builtin data styles */
.sub-tab.active{color:var(--primary) !important;border-bottom-color:var(--primary) !important;}
.builtin-input-spot:focus,.builtin-input-ratio:focus,.builtin-input-mlt:focus,.builtin-input-grid:focus{outline:2px solid var(--primary);border-color:var(--primary);}

.empty-state .empty-icon{font-size:48px;margin-bottom:12px;}
.empty-state p{font-size:14px;}

/* Status Badge */
.status-badge{padding:3px 10px;border-radius:20px;font-size:11px;font-weight:500;display:inline-block;white-space:nowrap;}
.status-recognizing{background:#FEF3C7;color:#92400E;}
.status-waiting{background:#E0E7FF;color:#3730A3;}
.status-calculating{background:#FEF3C7;color:#92400E;}
.status-done{background:#D1FAE5;color:#065F46;}
.status-fail{background:#FEE2E2;color:#991B1B;}

/* Upload */
.upload-zone{
  border:2px dashed var(--gray-300);border-radius:var(--radius-lg);padding:48px 32px;
  text-align:center;cursor:pointer;transition:var(--transition);background:var(--gray-50);
}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--primary);background:var(--primary-light);}
.upload-icon{font-size:44px;margin-bottom:12px;display:block;}
.upload-zone h3{font-size:15px;font-weight:600;color:var(--gray-700);margin-bottom:6px;}
.upload-zone p{color:var(--gray-400);font-size:12px;}
.upload-zone .hint-tags{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap;}
.upload-zone .hint-tags span{
  background:var(--white);border:1px solid var(--gray-200);padding:3px 10px;
  border-radius:20px;font-size:11px;color:var(--gray-500);
}
.file-card{
  display:flex;align-items:center;gap:12px;padding:12px 16px;
  background:var(--primary-light);border-radius:var(--radius);margin-top:14px;
}
.file-icon{font-size:26px;}
.file-info{flex:1;}
.file-info .name{font-size:13px;font-weight:500;color:var(--gray-800);}
.file-info .size{font-size:11px;color:var(--gray-400);}
.file-remove{cursor:pointer;color:var(--gray-400);font-size:18px;padding:4px 8px;border-radius:var(--radius-sm);transition:var(--transition);background:none;border:none;}
.file-remove:hover{color:var(--danger);background:var(--danger-light);}

/* Upload Rules Tooltip */
.upload-rules-trigger{display:flex;align-items:center;gap:6px;position:relative;}
.upload-rules-tooltip{
  position:absolute;top:100%;right:0;z-index:100;
  margin-top:8px;
  animation:tooltipFadeIn 0.2s ease;
}
@keyframes tooltipFadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}
.rules-tooltip-content{
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:16px 20px;min-width:280px;
}
.rules-tooltip-header{padding-bottom:10px;border-bottom:1px solid var(--gray-100);margin-bottom:10px;}
.rules-tooltip-list{list-style:none;font-size:12px;color:var(--gray-600);line-height:2;}
.rules-tooltip-list li{display:flex;align-items:center;gap:8px;}
.rules-check{color:var(--success);font-weight:700;font-size:13px;width:16px;text-align:center;flex-shrink:0;}

/* Multi-file list */
.multi-file-item{
  display:flex;align-items:center;gap:12px;padding:10px 14px;
  background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius);
  margin-bottom:6px;transition:var(--transition);
}
.multi-file-item:hover{background:var(--primary-light);border-color:#BFDBFE;}
.multi-file-item .mf-icon{font-size:22px;flex-shrink:0;}
.multi-file-item .mf-info{flex:1;min-width:0;}
.multi-file-item .mf-name{font-size:13px;font-weight:500;color:var(--gray-800);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.multi-file-item .mf-size{font-size:11px;color:var(--gray-400);}
.multi-file-item .mf-status{font-size:11px;padding:2px 8px;border-radius:10px;flex-shrink:0;}
.multi-file-item .mf-status.ok{background:#D1FAE5;color:#065F46;}
.multi-file-item .mf-status.err{background:#FEE2E2;color:#991B1B;}
.multi-file-item .mf-remove{cursor:pointer;color:var(--gray-400);font-size:16px;padding:2px 6px;border-radius:var(--radius-sm);transition:var(--transition);background:none;border:none;flex-shrink:0;}
.multi-file-item .mf-remove:hover{color:var(--danger);background:var(--danger-light);}
.multi-file-summary{font-size:12px;color:var(--gray-500);text-align:right;margin-top:4px;}

/* Result Cards */
.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px;}
.result-card{background:var(--primary-light);border-radius:var(--radius-lg);padding:20px;text-align:center;}
.result-card.highlight{background:linear-gradient(135deg,#2563EB,#1D4ED8);color:white;}
.result-card.highlight-green{background:linear-gradient(135deg,#059669,#047857);color:white;}
.result-card .label{font-size:12px;color:var(--gray-500);margin-bottom:6px;}
.result-card.highlight .label,.result-card.highlight-green .label{color:rgba(255,255,255,0.7);}
.result-card .value{font-size:26px;font-weight:700;letter-spacing:-1px;}
.result-card .unit{font-size:13px;font-weight:400;margin-left:1px;}
.result-card .sub{font-size:11px;color:var(--gray-400);margin-top:3px;}
.result-card.highlight .sub,.result-card.highlight-green .sub{color:rgba(255,255,255,0.6);}

/* Section Title */
.section-title{font-size:14px;font-weight:600;color:var(--gray-700);margin:24px 0 14px;padding-bottom:8px;border-bottom:1px solid var(--gray-200);display:flex;align-items:center;gap:6px;}

/* Result Grid 3-col */
.result-grid-3{grid-template-columns:repeat(3,1fr);}

/* Profile */
.profile-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;margin-bottom:8px;}
.profile-item{display:flex;flex-direction:column;padding:14px 16px;background:var(--white);border-right:1px solid var(--gray-100);}
.profile-item:last-child{border-right:none;}
.profile-label{font-size:11px;color:var(--gray-500);margin-bottom:4px;text-transform:uppercase;letter-spacing:0.5px;}
.profile-value{font-size:14px;color:var(--gray-800);font-weight:500;}

/* Policy Warning */
.policy-warning{margin:16px 0 8px;padding:10px 14px;background:var(--danger-light);border:1px solid #FECACA;border-radius:var(--radius);font-size:13px;color:#991B1B;line-height:1.6;}

/* Pricing Table */
.pricing-table{font-size:14px;}
.pricing-table th{text-align:center;background:var(--gray-100);font-size:13px;padding:12px 14px;}
.pricing-table td{text-align:center;padding:16px 14px;font-weight:500;}
.pricing-table .pricing-label{text-align:left;font-weight:600;color:var(--gray-800);font-size:14px;}
.pricing-table .pricing-grid{color:#6D28D9;font-size:15px;}
.pricing-table .pricing-mode{color:var(--primary);font-size:15px;}
.pricing-table .pricing-cap{color:var(--danger);font-size:15px;}
.pricing-table .pricing-saving{color:var(--success);font-size:16px;font-weight:700;}

/* Pricing Note */
.pricing-note{margin-top:14px;padding:14px 18px;background:var(--gray-50);border-radius:var(--radius);border:1px solid var(--gray-200);}
.pricing-note-list{list-style:none;font-size:13px;color:var(--gray-600);line-height:2;}
.pricing-note-list li::before{content:'○ ';color:var(--gray-400);margin-right:4px;}

/* Alert */
.alert{padding:12px 16px;border-radius:var(--radius);font-size:13px;display:flex;align-items:flex-start;gap:10px;margin-bottom:20px;}
.alert-warning{background:var(--warning-light);color:#92400E;border:1px solid #FDE68A;}
.alert-info{background:var(--primary-light);color:#1E40AF;border:1px solid #BFDBFE;}
.alert-success{background:var(--success-light);color:#065F46;border:1px solid #A7F3D0;}
.alert-danger{background:var(--danger-light);color:#991B1B;border:1px solid #FECACA;}
.alert-icon{font-size:16px;flex-shrink:0;margin-top:2px;}

/* Filter Bar */
.filter-bar{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap;align-items:center;}
.filter-bar input,.filter-bar select{
  padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);
  font-size:13px;font-family:inherit;
}
.filter-bar input:focus,.filter-bar select:focus{outline:none;border-color:var(--primary);}


/* Process Overlay */
.process-overlay{
  position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);
  display:flex;align-items:center;justify-content:center;z-index:1000;
}
.process-modal{background:var(--white);border-radius:var(--radius-xl);padding:36px;text-align:center;min-width:340px;box-shadow:var(--shadow-lg);}
.spinner{width:44px;height:44px;border:3px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite;margin:0 auto 18px;}
@keyframes spin{to{transform:rotate(360deg);}}
.process-modal h3{font-size:16px;margin-bottom:6px;color:var(--gray-800);}
.process-modal p{color:var(--gray-500);font-size:13px;}
.progress-bar{width:100%;height:5px;background:var(--gray-200);border-radius:3px;margin-top:20px;overflow:hidden;}
.progress-fill{height:100%;background:var(--primary);border-radius:3px;width:0%;transition:width 0.5s ease;animation:progress-anim 2s ease-in-out forwards;}
@keyframes progress-anim{0%{width:0%}60%{width:80%}100%{width:100%}}

/* Page Visibility */
.page{display:none;}
.page.active{display:block;}

/* Toast */
.toast{position:fixed;top:24px;right:24px;background:var(--gray-900);color:white;padding:12px 20px;border-radius:var(--radius);font-size:13px;z-index:2000;animation:slideIn 0.3s ease;box-shadow:var(--shadow-lg);}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* PDF Preview — 卡片层次感布局 */
#page-pdfPreview{
  background:#F1F5F9;
  margin:-32px;
  padding:32px 32px 80px;
  min-height:100vh;
}
#page-pdfPreview .breadcrumb{color:#94A3B8;}
#page-pdfPreview .page-header h1{font-size:20px;margin-bottom:16px;}
#page-pdfPreview .page-header p{display:none;}

/* 纸张卡片：白底 + 浅边框 + 双层阴影 + 自然留白 */
.pdf-preview{
  max-width:794px;/* A4 @96dpi */
  margin:0 auto 32px;
  padding:0;
  background:#FFFFFF;
  border-radius:8px;
  border:1px solid #E2E8F0;
  box-shadow:
    0 1px 3px rgba(0,0,0,0.04),
    0 4px 12px rgba(0,0,0,0.05),
    0 8px 24px rgba(0,0,0,0.04);
  overflow:hidden;
}
.pdf-preview iframe{
  display:block;
  width:100%;
  height:82vh;
  min-height:900px;
  border:none;
  background:transparent;
}
.pdf-header{padding:36px 44px 20px;border-bottom:3px solid var(--primary);text-align:center;}
.pdf-header h2{font-size:19px;font-weight:700;color:var(--gray-900);line-height:1.5;}
.pdf-section{padding:22px 44px;}
.pdf-section h3{font-size:15px;font-weight:600;color:var(--primary);margin-bottom:14px;padding-bottom:6px;border-bottom:1px solid var(--gray-200);}
.pdf-footer{padding:16px 44px;text-align:right;color:var(--gray-500);font-size:12px;border-top:1px solid var(--gray-200);}
.red-text{color:var(--danger);font-weight:500;}

/* Process Steps */
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;}
.process-step{text-align:center;padding:14px 8px;background:var(--gray-50);border-radius:var(--radius);}
.process-step .step-num{width:32px;height:32px;border-radius:50%;background:var(--primary);color:white;display:flex;align-items:center;justify-content:center;margin:0 auto 8px;font-weight:700;font-size:14px;}
.process-step h4{font-size:12px;color:var(--gray-800);margin-bottom:2px;}
.process-step p{font-size:10px;color:var(--gray-500);line-height:1.4;}

/* Peak-Valley Table - Single Column Layout */
.peak-valley-table{overflow-y:auto;margin-top:12px;max-height:480px;border:1px solid var(--gray-200);border-radius:var(--radius);}
.peak-valley-table table{font-size:12px;width:100%;}
.peak-valley-table th,.peak-valley-table td{padding:8px 14px;text-align:center;}
.peak-valley-table thead th{position:sticky;top:0;z-index:2;background:var(--gray-50);font-weight:600;color:var(--gray-700);}
.peak-valley-table tbody td{border-bottom:1px solid var(--gray-100);}
.peak-valley-table tbody tr:last-child td{border-bottom:none;}
.peak-valley-table tbody tr:hover td{background:var(--gray-50);}
.peak-valley-table .col-seq{font-weight:600;color:var(--gray-800);width:60px;}
.peak-valley-table .col-ratio{font-weight:500;color:var(--gray-700);}
.peak-valley-table .col-kwh{font-weight:500;color:var(--gray-800);text-align:right;font-variant-numeric:tabular-nums;}
.peak-tag{background:#FEF2F2;color:#991B1B;padding:2px 10px;border-radius:4px;font-size:11px;font-weight:500;display:inline-flex;align-items:center;gap:3px;}
.flat-tag{background:#FFFBEB;color:#92400E;padding:2px 10px;border-radius:4px;font-size:11px;font-weight:500;display:inline-flex;align-items:center;gap:3px;}
.valley-tag{background:#ECFDF5;color:#065F46;padding:2px 10px;border-radius:4px;font-size:11px;font-weight:500;display:inline-flex;align-items:center;gap:3px;}
.spike-tag{background:#FEE2E2;color:#7F1D1D;padding:2px 10px;border-radius:4px;font-size:11px;font-weight:500;display:inline-flex;align-items:center;gap:3px;}
/* Peak-Valley Legend */
.pv-legend{display:flex;gap:16px;margin-bottom:12px;flex-wrap:wrap;font-size:12px;color:var(--gray-500);}
.pv-legend span{display:flex;align-items:center;gap:6px;}

/* Multi-Bill Months Accordion */
.bill-months-list{display:flex;flex-direction:column;gap:8px;margin-top:12px;}
.bill-month-card{border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;transition:var(--transition);}
.bill-month-card:hover{border-color:var(--gray-300);}
.bill-month-header{
  display:flex;align-items:center;justify-content:space-between;padding:12px 16px;
  user-select:none;background:var(--gray-50);transition:var(--transition);
}
.bill-month-info{display:flex;align-items:center;gap:16px;flex-wrap:wrap;flex:1;min-width:0;}
.bill-month-label{font-size:13px;font-weight:600;color:var(--gray-800);white-space:nowrap;display:inline-flex;align-items:center;gap:4px;}
.bill-month-total{font-size:12px;color:var(--gray-500);white-space:nowrap;display:inline-flex;align-items:center;gap:4px;}
.bill-month-summary{display:flex;gap:6px;flex-wrap:wrap;}
/* 卡片内联编辑输入框（与原文本视觉一致） */
.bill-inline-input{
  border:1px solid var(--gray-200);border-radius:4px;padding:2px 6px;
  font-size:inherit;font-weight:600;color:var(--gray-800);background:var(--white);
  font-family:inherit;min-width:55px;
}
.bill-inline-input:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,0.12);
}
.bill-inline-input.bill-edit-month{min-width:120px;max-width:140px;}
.bill-inline-input.bill-edit-kwh{min-width:90px;max-width:110px;}
.bill-inline-input.bill-edit-fee{min-width:70px;max-width:90px;}
.bill-inline-input.bill-edit-spike,
.bill-inline-input.bill-edit-peak,
.bill-inline-input.bill-edit-flat,
.bill-inline-input.bill-edit-valley{min-width:45px;max-width:60px;padding:1px 4px;}
.bill-month-body{padding:0;max-height:500px;overflow-y:auto;}

/* Gantt Timeline PV - Horizontal Bar Chart */
.pv-gantt-wrap{padding:12px 16px 8px;background:var(--white);overflow-x:auto;}
.pv-gantt-axis{display:flex;align-items:stretch;gap:2px;min-width:960px;}
.pv-gantt-bar{flex:1;min-width:34px;display:flex;flex-direction:column;align-items:center;border-radius:6px 6px 2px 2px;padding:10px 2px 8px;position:relative;transition:all 0.15s ease;cursor:default;}
.pv-gantt-bar:hover{transform:translateY(-3px);box-shadow:0 4px 12px rgba(0,0,0,0.15);z-index:2;}
.pv-gantt-bar .pv-gantt-hour{font-size:10px;font-weight:600;color:rgba(0,0,0,0.55);margin-bottom:6px;}
.pv-gantt-bar .pv-gantt-type{font-size:11px;font-weight:700;margin-bottom:4px;}
.pv-gantt-bar .pv-gantt-kwh{font-size:10px;font-weight:500;color:rgba(0,0,0,0.6);white-space:nowrap;}
/* peak bar */
.pv-gantt-bar.peak-bar{background:var(--white);border:1px solid #EF4444;border-top-width:2px;}
.pv-gantt-bar.peak-bar .pv-gantt-type{color:#DC2626;}
.pv-gantt-bar.peak-bar:hover{background:#FEF2F2;border-color:#DC2626;}
/* flat bar */
.pv-gantt-bar.flat-bar{background:var(--white);border:1px solid #F59E0B;border-top-width:2px;}
.pv-gantt-bar.flat-bar .pv-gantt-type{color:#D97706;}
.pv-gantt-bar.flat-bar:hover{background:#FFFBEB;border-color:#D97706;}
/* valley bar */
.pv-gantt-bar.valley-bar{background:var(--white);border:1px solid #10B981;border-top-width:2px;}
.pv-gantt-bar.valley-bar .pv-gantt-type{color:#059669;}
.pv-gantt-bar.valley-bar:hover{background:#ECFDF5;border-color:#059669;}
/* spike bar */
.pv-gantt-bar.spike-bar{background:var(--white);border:1px solid #991B1B;border-top-width:3px;}
.pv-gantt-bar.spike-bar .pv-gantt-type{color:#991B1B;}
.pv-gantt-bar.spike-bar:hover{background:#FEE2E2;border-color:#B91C1C;}
/* gantt legend row */
.pv-gantt-legend{display:flex;align-items:center;gap:20px;padding:4px 16px 12px;font-size:11px;color:var(--gray-500);}
.pv-gantt-legend .gantt-legend-dot{width:10px;height:10px;border-radius:2px;display:inline-block;margin-right:6px;}
.gantt-legend-dot.peak-dot{background:var(--white);border:2px solid #EF4444;border-bottom-width:1px;border-left-width:1px;border-right-width:1px;}
.gantt-legend-dot.flat-dot{background:var(--white);border:2px solid #F59E0B;border-bottom-width:1px;border-left-width:1px;border-right-width:1px;}
.gantt-legend-dot.valley-dot{background:var(--white);border:2px solid #10B981;border-bottom-width:1px;border-left-width:1px;border-right-width:1px;}
.gantt-legend-dot.spike-dot{background:var(--white);border:2px solid #991B1B;border-bottom-width:1px;border-left-width:1px;border-right-width:1px;}

/* ===== 测算基础数据 (calc-data) ===== */
.calc-month-list{display:flex;flex-direction:column;gap:8px;margin-top:12px;}
.calc-month-card{border:1px solid #E5E7EB;border-radius:12px;overflow:hidden;transition:all .2s;}
.calc-month-card:hover{border-color:#D1D5DB;}
.calc-month-header{
  display:flex;align-items:center;justify-content:space-between;padding:10px 16px;
  cursor:pointer;user-select:none;background:#F9FAFB;transition:background .15s;
}
.calc-month-header:hover{background:#F3F4F6;}
.calc-month-title{font-size:13px;font-weight:600;color:var(--gray-800);}
.calc-month-toggle{font-size:10px;color:var(--gray-400);transition:transform .2s;}
.calc-month-card.collapsed .calc-month-body{display:none;}
.calc-month-card.collapsed .calc-month-toggle{transform:rotate(0deg);}
.calc-month-card:not(.collapsed) .calc-month-toggle{transform:rotate(180deg);}
.calc-month-body{padding:0;overflow-x:auto;}
.calc-month-table{width:100%;font-size:12px;border-collapse:collapse;}
.calc-month-table th,.calc-month-table td{padding:7px 10px;text-align:center;white-space:nowrap;border-bottom:1px solid var(--gray-100);}
.calc-month-table thead th{background:var(--gray-50);font-weight:600;color:var(--gray-600);position:sticky;top:0;}
.calc-month-table .row-label{text-align:left;font-weight:500;color:var(--gray-600);min-width:160px;}
.calc-month-table .row-company td{background:#EFF6FF;color:#1D4ED8;font-weight:500;}
.calc-month-table .row-market td{background:#FEF2F2;color:#DC2626;font-weight:500;}

.calc-summary-table-wrap{overflow-x:auto;margin-top:12px;border:1px solid var(--gray-200);border-radius:var(--radius);max-height:280px;overflow-y:auto;}
.calc-summary-table{width:100%;font-size:12px;border-collapse:collapse;}
.calc-summary-table th,.calc-summary-table td{padding:7px 10px;text-align:center;white-space:nowrap;border-bottom:1px solid var(--gray-100);}
.calc-summary-table thead th{background:var(--gray-50);font-weight:600;color:var(--gray-600);position:sticky;top:0;z-index:1;}
.calc-summary-table .row-label{text-align:left;font-weight:500;color:var(--gray-600);min-width:180px;}
.calc-summary-table .row-company td{background:#EFF6FF;color:#1D4ED8;font-weight:500;}
.calc-summary-table .row-market td{background:#FEF2F2;color:#DC2626;font-weight:500;}

.calc-final-avg-card{
  display:flex;gap:16px;margin-top:16px;flex-wrap:wrap;
  background:linear-gradient(135deg,#F0FDF4,#DCFCE7);border:1px solid #86EFAC;
  border-radius:var(--radius-lg);padding:20px 24px;
}
.calc-final-item{flex:1;min-width:180px;text-align:center;font-size:13px;color:var(--gray-600);}
.calc-final-item strong{display:block;font-size:28px;font-weight:700;margin-top:4px;}

/* Calculation Data Table - Horizontal Scroll */
.calc-data-table{overflow-x:auto;margin-top:12px;max-height:320px;overflow-y:auto;border:1px solid var(--gray-200);border-radius:var(--radius);}
.calc-data-table table{font-size:12px;width:100%;min-width:100%;}
.calc-data-table th,.calc-data-table td{padding:7px 10px;text-align:center;white-space:nowrap;}
.calc-data-table thead th{position:sticky;top:0;z-index:2;background:var(--gray-50);font-weight:600;color:var(--gray-700);}
.calc-data-table .col-name{position:sticky;left:0;background:var(--white);z-index:1;font-weight:600;text-align:left;color:var(--gray-800);min-width:100px;}
.calc-data-table thead .col-name{z-index:3;background:var(--gray-50);}
.calc-data-table tbody td{border-bottom:1px solid var(--gray-100);}
.calc-data-table tbody tr:last-child td{border-bottom:none;}
.calc-data-table tr:hover td{background:var(--gray-50);}
.calc-data-table tr:hover .col-name{background:var(--gray-100);}
.calc-data-table td input{width:64px;padding:4px 4px;border:1px solid var(--gray-200);border-radius:3px;font-size:10px;text-align:center;}
.calc-data-table td input:focus{outline:none;border-color:var(--primary);}

/* Modal */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);display:flex;align-items:center;justify-content:center;z-index:1000;}
.modal{background:var(--white);border-radius:var(--radius-xl);padding:32px;min-width:480px;max-width:640px;box-shadow:var(--shadow-lg);max-height:80vh;overflow-y:auto;}
.modal h3{font-size:17px;font-weight:600;margin-bottom:20px;color:var(--gray-900);}
.modal .modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;}

/* Responsive */
@media(max-width:1024px){
  .sidebar{width:200px;}
  .main-content{margin-left:200px;padding:20px;}
  .form-grid,.form-grid-3{grid-template-columns:1fr;}
  .result-grid{grid-template-columns:1fr 1fr;}
  .result-grid-3{grid-template-columns:1fr 1fr;}
  .form-grid-4{grid-template-columns:1fr 1fr;}
  .profile-row{grid-template-columns:1fr 1fr;}
}
@media(max-width:768px){
  .sidebar{display:none;}
  .main-content{margin-left:0;padding:16px;}
  .result-grid{grid-template-columns:1fr;}
  .result-grid-3{grid-template-columns:1fr;}
  .form-grid-4{grid-template-columns:1fr;}
  .profile-row{grid-template-columns:1fr;}
}

.text-muted{color:var(--gray-400);font-size:12px;}
.mt-1{margin-top:4px;}.mt-2{margin-top:8px;}.mt-3{margin-top:12px;}.mt-4{margin-top:16px;}.mt-6{margin-top:24px;}
.mb-1{margin-bottom:4px;}.mb-2{margin-bottom:8px;}.mb-4{margin-bottom:16px;}
.ml-2{margin-left:8px;}.mr-2{margin-right:8px;}

/* Service Period Config */
.service-period-row{
  display:flex;gap:20px;align-items:flex-end;margin-bottom:4px;
}
.service-period-row .form-group{flex:1;min-width:180px;}

/* Login Page */
.login-container{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1E3A5F 0%,#2563EB 50%,#1D4ED8 100%);
}
.login-card{
  background:var(--white);border-radius:var(--radius-xl);padding:40px;
  width:420px;box-shadow:0 20px 60px rgba(0,0,0,0.3);
}
.login-card h1{font-size:22px;font-weight:700;color:var(--gray-900);text-align:center;margin-bottom:4px;}
.login-card .subtitle{text-align:center;color:var(--gray-400);font-size:13px;margin-bottom:32px;}
.login-card .form-group{margin-bottom:18px;}
.login-card .btn{margin-top:8px;}
.login-card .links{text-align:center;margin-top:20px;font-size:13px;color:var(--gray-500);}
.login-card .links a{color:var(--primary);cursor:pointer;text-decoration:none;}
.login-card .links a:hover{text-decoration:underline;}

/* Tabs */
.tabs{display:flex;border-bottom:2px solid var(--gray-200);margin-bottom:20px;}
.tab{
  padding:10px 20px;font-size:13px;font-weight:500;color:var(--gray-500);
  cursor:pointer;border:none;background:none;border-bottom:2px solid transparent;
  margin-bottom:-2px;transition:var(--transition);
}
.tab:hover{color:var(--gray-700);}
.tab.active{color:var(--primary);border-bottom-color:var(--primary);}

/* Timeline */
.timeline-item{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--gray-100);}
.timeline-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);margin-top:6px;flex-shrink:0;}
.timeline-content{flex:1;}
.timeline-content .title{font-size:14px;font-weight:500;color:var(--gray-800);}
.timeline-content .desc{font-size:12px;color:var(--gray-500);margin-top:2px;}
.timeline-content .time{font-size:11px;color:var(--gray-400);}

/* Info Row */
.info-row{display:flex;gap:40px;flex-wrap:wrap;padding:12px 0;}
.info-item{display:flex;flex-direction:column;gap:2px;}
.info-item .label{font-size:11px;color:var(--gray-400);}
.info-item .value{font-size:14px;font-weight:500;color:var(--gray-800);}

/* Config Card */
.config-item{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--gray-100);}
.config-item:last-child{border-bottom:none;}
.config-item .config-info{flex:1;}
.config-item .config-info .name{font-size:14px;font-weight:500;color:var(--gray-800);}
.config-item .config-info .desc{font-size:12px;color:var(--gray-400);margin-top:2px;}
.config-item .config-value{display:flex;align-items:center;gap:12px;}
.config-item .config-value input{width:120px;padding:7px 10px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:13px;text-align:right;}
.config-item .config-value .unit{font-size:12px;color:var(--gray-500);}

/* OCR Confirmation Table */
.ocr-table td input{width:100%;padding:6px 8px;border:1px solid var(--gray-200);border-radius:var(--radius-sm);font-size:12px;}
.ocr-table td input:focus{outline:none;border-color:var(--primary);}

/* Tab Content */
.tab-content{display:none;}
.tab-content.active{display:block;}

/* OCR 置信度颜色 - 后端独有 */
.confidence-green { border-color: #10B981 !important; background: #F0FDF4 !important; }
.confidence-yellow { border-color: #F59E0B !important; background: #FFFBEB !important; }
.confidence-red { border-color: #EF4444 !important; background: #FEF2F2 !important; }
.confidence-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; }
.confidence-dot.green { background: #10B981; }
.confidence-dot.yellow { background: #F59E0B; }
.confidence-dot.red { background: #EF4444; }

/* ===== 内置数据双列表格样式 ===== */
.builtin-dual-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}
.builtin-dual-left,
.builtin-dual-right {
  display: flex;
  flex-direction: column;
}
.builtin-dual-left {
  border-right: 2px solid var(--gray-300);
}
.builtin-dual-header {
  display: flex;
  background: var(--gray-100);
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-200);
}
.builtin-dual-header > span {
  flex: 1;
  text-align: center;
  padding: 8px 4px;
}
.builtin-dual-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--gray-100);
  font-size: 12px;
  min-height: 36px;
  transition: background 0.15s ease;
}
.builtin-dual-row:last-child {
  border-bottom: none;
}
.builtin-dual-row:hover {
  background: var(--gray-50);
}
.builtin-dual-row .period-cell {
  flex: 1;
  text-align: center;
  padding: 6px 4px;
  color: var(--gray-500);
  font-weight: 500;
  white-space: nowrap;
}
.builtin-dual-row .period-label {
  flex: 1;
  text-align: center;
  padding: 4px 4px;
}
.builtin-dual-row .period-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  min-width: 28px;
}
.builtin-dual-row .price-cell {
  flex: 1;
  text-align: center;
  padding: 4px 4px;
}
.builtin-dual-row .price-cell input {
  width: 80px;
  padding: 5px 6px;
  border: 1px solid var(--gray-200);
  border-radius: 4px;
  font-size: 12px;
  text-align: right;
  font-family: inherit;
  transition: border-color 0.2s ease;
  background: transparent;
}
.builtin-dual-row .price-cell input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(37,99,235,0.1);
}

/* 峰谷平颜色 */
.badge-peak {
  background: #FEF2F2;
  color: #DC2626;
}
.badge-flat {
  background: #FFFBEB;
  color: #D97706;
}
.badge-valley {
  background: #ECFDF5;
  color: #059669;
}
.row-peak {
  background: rgba(254,242,242,0.3);
}
.row-flat {
  background: rgba(255,251,235,0.3);
}
.row-valley {
  background: rgba(236,253,245,0.3);
}

/* 国网代购价格表格 */
.builtin-grid-table {
  width: 100%;
  font-size: 13px;
  border-collapse: collapse;
}
.builtin-grid-table th,
.builtin-grid-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-100);
  text-align: left;
}
.builtin-grid-table th {
  background: var(--gray-100);
  font-weight: 600;
  color: var(--gray-600);
  font-size: 12px;
}
.builtin-grid-table td input {
  width: 160px;
  padding: 6px 10px;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  font-size: 13px;
  text-align: right;
}
.builtin-grid-table td input:focus {
  outline: none;
  border-color: var(--primary);
}
.grid-has-data { background: #FEF2F2; }
.grid-no-data { background: #FFFBEB; }
.grid-status-ok { color: #065F46; }
.grid-status-wait { color: #92400E; }