:root{--bg:#f0f2f5;--card:#fff;--text:#1a1a2e;--sub:#6b7280;--accent:#059669;--accent2:#10b981;--danger:#dc2626;--warn:#f59e0b;--blue:#2563eb;--border:#e5e7eb;--input-bg:#f9fafb;--shadow:0 1px 3px rgba(0,0,0,.08);--radius:8px;--gap:16px;--red-bg:#fef2f2;--red-border:#fecaca}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
.topbar{background:#1a1a2e;color:#fff;padding:0 20px;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:200}
.topbar-brand{font-size:18px;font-weight:700;display:flex;align-items:center;gap:8px}
.topbar-brand span{color:var(--accent2)}
.topbar-actions{display:flex;align-items:center;gap:10px;font-size:13px}
.key-dot{width:8px;height:8px;border-radius:50%;background:#dc2626;display:inline-block}
.key-dot.active{background:#10b981}
.global-search{position:relative}
.global-search input{padding:6px 12px 6px 30px;font-size:12px;border:1px solid rgba(255,255,255,.2);border-radius:6px;background:rgba(255,255,255,.1);color:#fff;width:180px;outline:none;transition:all .2s}
.global-search input:focus{width:220px;background:rgba(255,255,255,.15);border-color:var(--accent2)}
.global-search input::placeholder{color:rgba(255,255,255,.4)}
.global-search .gs-icon{position:absolute;left:8px;top:50%;transform:translateY(-50%);font-size:13px;opacity:.5}
.gs-dropdown{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;color:var(--text);border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.2);max-height:260px;overflow-y:auto;z-index:300;margin-top:4px;font-size:12px}
.gs-dropdown.active{display:block}
.gs-item{padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--border);display:flex;justify-content:space-between}
.gs-item:hover{background:var(--input-bg)}
.gs-item .gs-type{font-size:10px;color:var(--sub)}
.gs-empty{padding:12px;text-align:center;color:var(--sub);font-size:12px}
.layout{display:flex;min-height:calc(100vh - 56px)}
.sidebar{width:210px;background:#fff;border-right:1px solid var(--border);padding:10px 0;flex-shrink:0;overflow-y:auto}
.sidebar-section{padding:4px 18px 2px;font-size:11px;color:var(--sub);text-transform:uppercase;letter-spacing:.5px;margin-top:6px}
.sidebar-item{padding:9px 18px;cursor:pointer;font-size:13px;font-weight:500;color:var(--sub);display:flex;align-items:center;gap:8px;border-left:3px solid transparent;transition:all .15s}
.sidebar-item:hover{background:var(--input-bg);color:var(--text)}
.sidebar-item.active{color:var(--accent);border-left-color:var(--accent);background:#f0fdf4;font-weight:600}
.sidebar-item .badge{font-size:10px;padding:1px 6px;border-radius:10px;font-weight:600;margin-left:auto}
.main{flex:1;padding:20px 24px;overflow-y:auto;max-width:1400px}
.panel{display:none}.panel.active{display:block}
.panel-title{font-size:22px;font-weight:700;margin-bottom:4px}
.panel-sub{color:var(--sub);font-size:13px;margin-bottom:18px}
.card{background:var(--card);border-radius:var(--radius);padding:18px;margin-bottom:14px;box-shadow:var(--shadow)}
.card-title{font-size:14px;font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--gap)}
.grid4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:var(--gap)}
.stat-row{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.stat-card{background:var(--card);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);flex:1;min-width:140px;transition:transform .15s}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.1)}
.stat-label{font-size:11px;color:var(--sub);margin-bottom:3px}
.stat-val{font-size:24px;font-weight:700}
.stat-val.green{color:var(--accent)}.stat-val.blue{color:var(--blue)}.stat-val.red{color:var(--danger)}.stat-val.yellow{color:var(--warn)}
.stat-trend{font-size:11px;margin-top:2px}
.stat-trend.up{color:var(--accent)}.stat-trend.down{color:var(--danger)}

.accordion{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px;background:var(--card)}
.accordion-header{padding:12px 16px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;user-select:none;transition:background .15s}
.accordion-header:hover{background:var(--input-bg)}
.accordion-header .accordion-icon{font-size:10px;transition:transform .2s;color:var(--sub)}
.accordion.open .accordion-icon{transform:rotate(180deg)}
.accordion-body{padding:0 16px 16px;display:none}
.accordion.open .accordion-body{display:block}
.accordion-header.required::after{content:'*';color:var(--danger);margin-left:4px}

.realtime-calc{background:linear-gradient(135deg,#064e3b,#065f46);color:#fff;border-radius:var(--radius);padding:16px;margin-bottom:14px;display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px}
.realtime-calc .rc-item{text-align:center}
.realtime-calc .rc-label{font-size:11px;opacity:.75;margin-bottom:3px}
.realtime-calc .rc-val{font-size:18px;font-weight:700}
.realtime-calc .rc-val.warn{color:var(--warn)}
.realtime-calc .rc-val.good{color:var(--accent2)}
.realtime-calc .rc-val.bad{color:#fca5a5}

.form-group{margin-bottom:12px}.form-group:last-child{margin-bottom:0}
.form-group label{display:block;font-size:12px;font-weight:500;color:var(--sub);margin-bottom:3px}
.form-group label .required{color:var(--danger);font-weight:700}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 10px;font-size:13px;border:1.5px solid var(--border);border-radius:5px;background:var(--input-bg);color:var(--text);outline:none;transition:border .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);background:#fff}
.form-group input.error,.form-group select.error{border-color:var(--danger);background:var(--red-bg)}
.form-group .form-hint{font-size:10px;color:var(--sub);margin-top:2px}
.form-group .form-error{font-size:10px;color:var(--danger);margin-top:2px;display:none}
.form-group .form-error.show{display:block}
.form-row{display:flex;gap:10px}.form-row .form-group{flex:1;min-width:0}

.progress-steps{display:flex;align-items:center;gap:0;margin:12px 0;flex-wrap:wrap}
.progress-step{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--sub);padding:6px 0;position:relative}
.progress-step .dot{width:22px;height:22px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;flex-shrink:0;transition:all .3s}
.progress-step.active .dot{background:var(--blue)}
.progress-step.done .dot{background:var(--accent)}
.progress-step .step-label{white-space:nowrap}
.progress-step .connector{width:24px;height:2px;background:var(--border);margin:0 2px;flex-shrink:0}
.progress-step.done .connector{background:var(--accent)}
.progress-step:last-child .connector{display:none}

.autocomplete-wrapper{position:relative}
.autocomplete-dropdown{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.15);max-height:180px;overflow-y:auto;z-index:250;font-size:12px}
.autocomplete-dropdown.active{display:block}
.autocomplete-item{padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;transition:background .1s}
.autocomplete-item:hover,.autocomplete-item.selected{background:var(--input-bg)}
.autocomplete-item .ac-sub{font-size:10px;color:var(--sub)}

.btn{padding:8px 18px;font-size:13px;font-weight:600;border:none;border-radius:5px;cursor:pointer;transition:all .15s}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent2)}
.btn-blue{background:var(--blue);color:#fff}.btn-blue:hover{opacity:.9}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text)}
.btn-outline:hover{background:var(--input-bg)}
.btn-sm{padding:5px 12px;font-size:11px}
.btn-danger{background:transparent;border:1.5px solid #fecaca;color:var(--danger)}
.btn-danger:hover{background:var(--red-bg)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-group{display:flex;gap:6px;flex-wrap:wrap}

table{width:100%;border-collapse:collapse;font-size:12px}
th{text-align:left;padding:8px 10px;background:var(--input-bg);font-weight:600;color:var(--sub);border-bottom:2px solid var(--border);font-size:11px;cursor:default;white-space:nowrap}
th.sortable{cursor:pointer}
th.sortable:hover{color:var(--text)}
td{padding:8px 10px;border-bottom:1px solid var(--border)}
tr:hover td{background:#f9fafb}
tr.row-warning td{background:#fffbeb}
.tag{display:inline-block;padding:1px 7px;border-radius:9px;font-size:10px;font-weight:600}
.tag-green{background:#d1fae5;color:var(--accent)}.tag-yellow{background:#fef3c7;color:var(--warn)}.tag-red{background:#fee2e2;color:var(--danger)}.tag-blue{background:#dbeafe;color:var(--blue)}.tag-gray{background:#f3f4f6;color:var(--sub)}

.loading{display:none;text-align:center;padding:40px}.loading.active{display:block}
.spinner{width:32px;height:32px;margin:0 auto 12px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{color:var(--sub);font-size:14px}
.result{font-size:13px;line-height:1.8}.result table{margin:12px 0}.result h3{font-size:15px;margin:14px 0 6px}.result h4{font-size:14px;margin:10px 0 4px}.result ul,.result ol{padding-left:18px;margin:6px 0}.result li{margin:3px 0}
.error-box{display:none;background:var(--red-bg);border:1px solid var(--red-border);color:var(--danger);padding:12px;border-radius:6px;font-size:13px;margin-bottom:var(--gap)}.error-box.active{display:block}
.empty-state{text-align:center;padding:60px 16px;color:var(--sub);font-size:13px}
.empty-state .big-icon{font-size:42px;margin-bottom:10px}
.key-section{margin-bottom:20px}.key-section .card-title{color:var(--blue)}
.cost-tip{background:#eff6ff;padding:10px 12px;border-radius:6px;font-size:11px;color:var(--blue);margin-top:8px;line-height:1.5}
.section-divider{border:none;border-top:1px solid var(--border);margin:16px 0}

.modal-overlay{display:none;position:fixed;z-index:500;inset:0;background:rgba(0,0,0,.4);align-items:center;justify-content:center}
.modal-overlay.active{display:flex}
.modal-box{background:#fff;border-radius:12px;max-width:780px;max-height:85vh;width:90%;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border);position:sticky;top:0;background:#fff;z-index:1}
.modal-header h3{font-size:16px;margin:0}
.modal-close{cursor:pointer;font-size:22px;color:var(--sub);border:none;background:none;padding:4px 8px}
.modal-body{padding:20px;font-size:13px;line-height:1.8}

.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:8px;font-size:13px;font-weight:500;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.15);animation:toastIn .3s ease;min-width:220px;max-width:380px;display:flex;align-items:center;gap:8px}
.toast.success{background:#059669}.toast.error{background:#dc2626}.toast.info{background:#2563eb}.toast.warning{background:#d97706}
.toast.fadeout{animation:toastOut .3s ease forwards}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(40px)}}

.attachment-area{border:2px dashed var(--border);border-radius:var(--radius);padding:20px;text-align:center;cursor:pointer;transition:all .2s;margin-top:8px}
.attachment-area:hover{border-color:var(--accent);background:var(--input-bg)}
.attachment-area.dragover{border-color:var(--accent);background:#f0fdf4}
.attachment-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.attachment-item{width:80px;height:80px;border-radius:6px;overflow:hidden;position:relative;border:1px solid var(--border)}
.attachment-item img{width:100%;height:100%;object-fit:cover}
.attachment-item .att-del{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:var(--danger);color:#fff;border:none;cursor:pointer;font-size:10px;display:flex;align-items:center;justify-content:center;padding:0}
.attachment-item .att-name{font-size:9px;color:var(--sub);text-align:center;padding:2px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.filter-bar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap;align-items:center}
.filter-bar select,.filter-bar input{padding:6px 10px;font-size:12px;border:1.5px solid var(--border);border-radius:5px;background:var(--input-bg);outline:none}
.filter-bar select:focus,.filter-bar input:focus{border-color:var(--accent)}

.alert-list .alert-item{padding:8px 12px;font-size:12px;border-left:3px solid var(--warn);margin-bottom:4px;background:var(--input-bg);border-radius:0 6px 6px 0}
.alert-list .alert-item.danger{border-left-color:var(--danger)}

.card-hover:hover{box-shadow:0 4px 16px rgba(0,0,0,.12);transform:translateY(-1px);transition:all .2s}

.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}

@media(max-width:768px){
  .layout{flex-direction:column}.sidebar{width:100%;display:flex;overflow-x:auto;padding:6px;flex-shrink:0}.sidebar-item{border-left:none;border-bottom:3px solid transparent;white-space:nowrap;padding:8px 12px;font-size:12px}.sidebar-item.active{border-left:none;border-bottom-color:var(--accent)}.grid2,.grid3,.grid4{grid-template-columns:1fr}.main{padding:12px}.stat-row{flex-direction:column}.realtime-calc{grid-template-columns:repeat(2,1fr)}.progress-steps{overflow-x:auto;flex-wrap:nowrap}.compare-grid{grid-template-columns:1fr}
}

.photo-upload-area{border:2px dashed var(--border);border-radius:8px;padding:14px 16px;text-align:center;cursor:pointer;transition:all .2s;background:var(--input-bg);display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--sub)}
.photo-upload-area:hover{border-color:var(--accent);background:#f0fdf4;color:var(--accent)}
.photo-upload-area.recognizing{pointer-events:none;opacity:.7;border-color:var(--accent);animation:pulse-border 1.5s infinite}
@keyframes pulse-border{0%,100%{border-color:var(--accent)}50%{border-color:transparent}}
.photo-preview{max-width:100%;max-height:200px;border-radius:8px;margin-top:8px;display:none}
.paste-area{width:100%;min-height:100px;padding:10px 12px;border:2px dashed var(--border);border-radius:8px;font-size:12px;resize:vertical;font-family:monospace;background:var(--input-bg);margin-top:8px;transition:all .2s}
.paste-area:focus{border-color:var(--accent);outline:none;background:#fff}
.ai-floating-btn{position:fixed;bottom:24px;right:24px;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#059669);color:#fff;border:none;cursor:pointer;font-size:24px;box-shadow:0 4px 20px rgba(5,150,105,.35);z-index:400;transition:all .3s;display:flex;align-items:center;justify-content:center}
.ai-floating-btn:hover{transform:scale(1.1);box-shadow:0 6px 28px rgba(5,150,105,.5)}
.ai-floating-btn.active{background:var(--danger)}
.voice-btn{width:38px;height:38px;border-radius:50%;border:2px solid var(--border);background:#fff;cursor:pointer;font-size:18px;transition:all .2s;display:flex;align-items:center;justify-content:center}
.voice-btn:hover{border-color:var(--accent);background:var(--input-bg)}
.voice-btn.listening{background:var(--danger);color:#fff;border-color:var(--danger);animation:pulse-border 1.2s infinite}
.recognition-result{font-size:11px;color:var(--accent);padding:4px 8px;background:#f0fdf4;border-radius:4px;display:none}
.ai-chat-popup{position:fixed;bottom:90px;right:24px;width:400px;max-height:520px;background:#fff;border-radius:14px;box-shadow:0 12px 48px rgba(0,0,0,.25);z-index:399;display:none;flex-direction:column;overflow:hidden}
.ai-chat-popup.active{display:flex}
.ai-chat-header{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border);background:linear-gradient(135deg,#f0fdf4,#fff)}
.ai-chat-header span{font-weight:700;font-size:14px}
.ai-chat-body{flex:1;overflow-y:auto;padding:12px 16px;max-height:320px;font-size:12px;line-height:1.7}
.ai-chat-input-area{display:flex;gap:6px;padding:10px 14px;border-top:1px solid var(--border)}
.ai-chat-input{flex:1;padding:8px 12px;border:1.5px solid var(--border);border-radius:20px;font-size:12px;outline:none}
.ai-chat-input:focus{border-color:var(--accent)}
.ai-msg{padding:8px 12px;border-radius:10px;margin-bottom:8px;max-width:92%;font-size:12px;line-height:1.7}
.ai-msg.user{background:var(--input-bg);margin-left:auto}
.ai-msg.ai{background:#f0fdf4}
.ai-msg .actions{margin-top:4px}
.ai-msg .actions button{font-size:10px;padding:3px 8px;border-radius:4px;border:1px solid var(--border);background:#fff;cursor:pointer;margin-right:4px}
.ai-msg .actions button:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ═══════════ DARK MODE ═══════════ */
body.dark{--bg:#0f172a;--card:#1e293b;--text:#e2e8f0;--sub:#94a3b8;--accent:#10b981;--accent2:#34d399;--danger:#f87171;--warn:#fbbf24;--blue:#60a5fa;--border:#334155;--input-bg:#1e293b;--shadow:0 1px 3px rgba(0,0,0,.4);--red-bg:#450a0a;--red-border:#7f1d1d}
body.dark .topbar{background:#0f172a;border-bottom:1px solid #334155}
body.dark .sidebar{background:#1e293b;border-color:#334155}
body.dark .sidebar-item:hover{background:#334155}
body.dark .sidebar-item.active{background:#064e3b;color:#34d399}
body.dark .stat-card{background:#1e293b}
body.dark .key-dot{background:#f87171}
body.dark .key-dot.active{background:#34d399}
body.dark .gs-dropdown{background:#1e293b}
body.dark .gs-item:hover{background:#334155}
body.dark .toast{background:#1e293b}
body.dark .ai-msg.ai{background:#064e3b}
body.dark .realtime-calc{background:#0f172a}
body.dark input,body.dark select,body.dark textarea{background:#0f172a;color:#e2e8f0;border-color:#475569}
body.dark input:focus,body.dark select:focus,body.dark textarea:focus{border-color:#34d399}

/* ═══════════ TRUCK MODE (large text, high contrast) ═══════════ */
body.truck-mode{font-size:18px}
body.truck-mode .sidebar-item{font-size:16px;padding:12px 18px}
body.truck-mode .panel-title{font-size:26px}
body.truck-mode .card-title{font-size:18px}
body.truck-mode input,body.truck-mode select,body.truck-mode textarea{font-size:16px;padding:10px}
body.truck-mode .btn{font-size:16px;padding:10px 20px}
body.truck-mode .stat-value{font-size:32px}
body.truck-mode .realtime-calc .rc-val{font-size:20px}
body.truck-mode .topbar{height:64px}

/* ═══════════ VOICE BUTTON ═══════════ */
.voice-btn{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--danger);color:#fff;border:none;font-size:24px;cursor:pointer;box-shadow:0 4px 16px rgba(220,38,38,.4);z-index:500;transition:all .2s;display:flex;align-items:center;justify-content:center}
.voice-btn:hover{transform:scale(1.1)}
.voice-btn.listening{animation:pulse 1s infinite;background:#ef4444}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(239,68,68,.6)}50%{box-shadow:0 0 0 16px rgba(239,68,68,0)}}
.voice-feedback{position:fixed;bottom:90px;right:24px;background:var(--card);border-radius:12px;padding:16px 20px;box-shadow:0 4px 24px rgba(0,0,0,.2);z-index:500;font-size:14px;max-width:300px;display:none}
.voice-feedback.active{display:block}

/* ═══════════ OFFLINE BAR ═══════════ */
.offline-indicator{position:fixed;top:56px;left:0;right:0;z-index:199;text-align:center;padding:6px;font-size:12px;font-weight:600;display:none}
.offline-indicator.show{display:block}
body.dark .offline-indicator{background:#451a03;color:#fbbf24}

/* ═══════════ THEME TOGGLE ═══════════ */
.theme-toggle-btn{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;padding:6px 10px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s}
.theme-toggle-btn:hover{background:rgba(255,255,255,.2)}
body.dark .theme-toggle-btn{background:rgba(255,255,255,.05)}