/* 飞龙冷链方案设计系统 v15.2 — 主样式表（UI优化版） */
:root {
  /* === 品牌色 === */
  --brand: #0070c0; --brand-deep: #005090; --brand-light: #e6f2fc; --brand-soft: #f0f6fb;
  --accent: #0090d9; --accent-light: #d4eefc;

  /* === 表面/背景 === */
  --bg: #f1f5f9; --surface: #ffffff; --surface-hover: #f8fafc;

  /* === 边框 === */
  --border: #e2e8f0; --border-strong: #cbd5e1;

  /* === 文本色（提高对比度） === */
  --text: #0f172a; --text-secondary: #475569; --text-muted: #64748b;

  /* === 语义色 === */
  --success: #059669; --success-light: #d1fae5; --success-soft: #ecfdf5;
  --warning: #d97706; --warning-light: #fef3c7; --warning-soft: #fffbeb;
  --danger: #dc2626; --danger-light: #fee2e2; --danger-soft: #fef2f2;
  --purple: #7c3aed; --purple-light: #ede9fe;
  --amber: #d97706; --amber-light: #fef3c7; --amber-soft: #fffbeb;

  /* === 间距 Scale（4pt基准） === */
  --space-xs: 4px; --space-sm: 8px; --space-md: 12px; --space-lg: 16px;
  --space-xl: 24px; --space-2xl: 32px; --space-3xl: 48px;

  /* === 字号 Scale === */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.8125rem;  /* 13px */
  --text-base: 0.875rem; /* 14px */
  --text-md: 0.9375rem;  /* 15px */
  --text-lg: 1.0625rem;  /* 17px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.75rem;   /* 28px */

  /* === 圆角 Scale === */
  --radius-xs: 4px; --radius-sm: 6px; --radius: 10px; --radius-lg: 14px; --radius-xl: 20px;

  /* === 阴影 Scale === */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.18);
  --shadow-brand: 0 4px 16px rgba(0,112,192,0.18);

  /* === Z-Index Scale === */
  --z-dropdown: 100; --z-sticky: 200; --z-modal-bg: 400; --z-modal: 500;
  --z-print: 600; --z-toast: 700; --z-login: 800;

  /* === 过渡 === */
  --transition: 0.2s cubic-bezier(0.16,1,0.3,1);
  --transition-slow: 0.35s cubic-bezier(0.16,1,0.3,1);

  /* === 字体 === */
  --font: -apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-mono: 'SF Mono','Fira Code','Cascadia Code',Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:var(--text-base);line-height:1.65;min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
::selection{background:var(--brand-light);color:var(--brand)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* ===== HEADER ===== */
.app-header{
  background:linear-gradient(135deg,var(--brand-deep) 0%,var(--brand) 50%,#0088cc 100%);
  color:#fff;padding:0 var(--space-xl);height:62px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:var(--z-sticky);gap:var(--space-lg);
  box-shadow:0 2px 24px rgba(0,80,144,0.28);border-bottom:1px solid rgba(255,255,255,0.1)
}
.app-header .logo-area{display:flex;align-items:center;gap:var(--space-md);white-space:nowrap}
.app-header .logo-img{height:44px;width:auto;filter:drop-shadow(0 2px 4px rgba(0,0,0,0.15))}
.app-header .logo-divider{width:1px;height:32px;background:rgba(255,255,255,0.3);border-radius:1px}
.app-header .logo-text-group{display:flex;flex-direction:column;gap:1px}
.app-header .logo-title{font-size:var(--text-md);font-weight:700;letter-spacing:0.6px;line-height:1.2}
.app-header .logo-sub{font-size:var(--text-xs);opacity:0.78;font-weight:400;letter-spacing:0.3px}
.app-header .logo-version{font-size:0.625rem;background:rgba(255,255,255,0.2);padding:1px 7px;border-radius:10px;margin-left:4px;font-weight:500}

/* ===== 统一按钮体系 ===== */
/* Header 专用按钮（毛玻璃效果） */
.header-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;border-radius:var(--radius-xs);font-size:var(--text-xs);font-weight:500;border:1px solid rgba(255,255,255,0.22);background:rgba(255,255,255,0.1);color:#fff;cursor:pointer;transition:all var(--transition);white-space:nowrap;font-family:inherit;letter-spacing:0.2px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.header-btn:hover{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.4);transform:translateY(-1px)}
.header-btn:active{transform:scale(0.96) translateY(0)}
.header-btn-primary{background:#fff;color:var(--brand);border-color:#fff;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.header-btn-primary:hover{background:#f0f9ff;box-shadow:0 3px 12px rgba(0,0,0,0.15)}
.header-btn-ghost{background:none;border-color:transparent}
.header-btn-ghost:hover{background:rgba(255,255,255,0.12);border-color:transparent}
.header-btn-sm{padding:4px 10px;font-size:0.6875rem}
.header-btn-danger{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.2)}
.header-btn-danger:hover{background:rgba(220,38,38,0.3);border-color:rgba(255,100,100,0.5)}

/* 页面通用按钮 */
.btn{display:inline-flex;align-items:center;gap:5px;padding:7px 15px;border-radius:var(--radius-sm);font-size:var(--text-xs);font-weight:500;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;transition:all var(--transition);white-space:nowrap;font-family:inherit;letter-spacing:0.2px}
.btn:hover{background:var(--surface-hover);border-color:var(--border-strong);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.btn:active{transform:scale(0.97) translateY(0)}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}
.btn-primary:hover{background:var(--brand-deep);box-shadow:var(--shadow-brand)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success);box-shadow:0 2px 8px rgba(5,150,105,0.2)}
.btn-success:hover{background:#047857;box-shadow:0 4px 16px rgba(5,150,105,0.3)}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-danger:hover{background:#b91c1c;box-shadow:0 4px 16px rgba(220,38,38,0.25)}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-light)}
.btn-accent{background:linear-gradient(135deg,#7c3aed,#5b21b6);color:#fff;border-color:#7c3aed}
.btn-accent:hover{background:linear-gradient(135deg,#6d28d9,#4c1d95);box-shadow:0 4px 16px rgba(124,58,237,0.3)}
.btn-sm{padding:5px 12px;font-size:0.6875rem;border-radius:var(--radius-xs)}
.btn-xs{padding:3px 9px;font-size:0.625rem;border-radius:3px}
.btn-lg{padding:11px 26px;font-size:var(--text-base);font-weight:600;border-radius:var(--radius)}

.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:nowrap}
.toolbar-group{display:flex;align-items:center;gap:6px}
.toolbar-group-divider{width:1px;height:22px;background:rgba(255,255,255,0.2);margin:0 4px;border-radius:1px}
.toolbar-proj-select{
  padding:5px 28px 5px 10px;font-size:0.6875rem;border:1px solid rgba(255,255,255,0.25);
  border-radius:var(--radius-xs);min-width:150px;max-width:260px;font-family:var(--font);
  background:rgba(255,255,255,0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 8px center;
  color:#fff;cursor:pointer;text-overflow:ellipsis;white-space:nowrap;overflow:hidden;
  -webkit-appearance:none;appearance:none;transition:all var(--transition)
}
.toolbar-proj-select:hover{border-color:rgba(255,255,255,0.45);background-color:rgba(255,255,255,0.18)}
.toolbar-proj-select:focus{outline:none;border-color:rgba(255,255,255,0.6);box-shadow:0 0 0 2px rgba(255,255,255,0.15)}
.toolbar-proj-select option{background:#1e40af;color:#fff}

.proj-dropdown{position:relative;display:inline-flex}
.proj-dropdown-menu{
  display:none;position:absolute;top:100%;right:0;margin-top:6px;
  background:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);
  min-width:180px;z-index:var(--z-dropdown);overflow:hidden;border:1px solid var(--border);
  animation:ddIn 0.18s ease
}
@keyframes ddIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.proj-dropdown-menu.show{display:block}
.proj-dropdown-item{
  display:flex;align-items:center;gap:var(--space-sm);padding:9px 14px;font-size:var(--text-xs);color:var(--text-secondary);
  cursor:pointer;transition:background .15s;font-family:var(--font);white-space:nowrap;
  border:none;background:none;width:100%;text-align:left
}
.proj-dropdown-item:hover{background:var(--surface-hover);color:var(--text)}
.proj-dropdown-item.danger{color:var(--danger)}
.proj-dropdown-item.danger:hover{background:var(--danger-soft)}
.proj-dropdown-divider{height:1px;background:var(--border);margin:4px 0}
.proj-dropdown-item .dd-icon{font-size:13px;width:18px;text-align:center;flex-shrink:0}

.confirm-overlay{position:fixed;inset:0;background:rgba(15,23,42,0.45);z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(3px);animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.confirm-dialog{background:var(--surface);border-radius:var(--radius-lg);width:92%;max-width:420px;box-shadow:var(--shadow-xl);overflow:hidden;animation:confirmIn .25s ease}
@keyframes confirmIn{from{opacity:0;transform:scale(0.92) translateY(-8px)}to{opacity:1;transform:scale(1) translateY(0)}}
.confirm-dialog-body{padding:var(--space-xl) var(--space-xl) var(--space-lg)}
.confirm-dialog-body h3{font-size:var(--text-md);color:var(--text);margin-bottom:6px;font-weight:600}
.confirm-dialog-body p{font-size:var(--text-sm);color:var(--text-secondary);line-height:1.5}
.confirm-dialog-footer{padding:var(--space-md) var(--space-xl) var(--space-xl);display:flex;justify-content:flex-end;gap:var(--space-sm)}
.confirm-dialog-footer button{padding:8px 20px;border-radius:var(--radius-sm);font-size:var(--text-xs);font-weight:500;cursor:pointer;border:none;font-family:var(--font);transition:all .15s}
.confirm-btn-cancel{background:var(--bg);color:var(--text-secondary)}
.confirm-btn-cancel:hover{background:var(--border)}
.confirm-btn-danger{background:var(--danger);color:#fff}
.confirm-btn-danger:hover{background:#b91c1c}
.confirm-btn-primary{background:var(--brand);color:#fff}
.confirm-btn-primary:hover{background:var(--brand-deep)}

/* ===== LAYOUT ===== */
.main-wrap{max-width:1560px;margin:0 auto;padding:var(--space-xl) var(--space-xl);flex:1}

/* ===== 统计卡片 ===== */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-md);margin-bottom:var(--space-lg)}
.stat-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:var(--space-lg) var(--space-xl);transition:all var(--transition);position:relative;overflow:hidden}
.stat-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand);border-radius:0 2px 2px 0;transition:all var(--transition-slow)}
.stat-item:hover{border-color:var(--brand);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-item:hover::before{width:5px;background:var(--accent)}
.stat-item .lbl{font-size:var(--text-xs);color:var(--text-muted);margin-bottom:4px;font-weight:500;text-transform:uppercase;letter-spacing:0.5px}
.stat-item .val{font-size:var(--text-2xl);font-weight:700;color:var(--text);line-height:1.2}
.stat-item .sub{font-size:var(--text-xs);color:var(--text-secondary);margin-top:3px}

/* ===== STEP FLOW ===== */
.step-flow{display:flex;gap:0;background:var(--surface);border-radius:var(--radius);padding:6px var(--space-sm);margin-bottom:var(--space-md);border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow-sm)}
.step-flow .step{flex:1;padding:8px 6px;text-align:center;font-size:0.6875rem;color:var(--text-muted);cursor:pointer;transition:all var(--transition);border-radius:var(--radius-sm);position:relative;font-weight:500;letter-spacing:0.2px}
.step-flow .step::after{content:'';position:absolute;right:-1px;top:8px;bottom:8px;width:1px;background:var(--border)}
.step-flow .step:last-child::after{display:none}
.step-flow .step.current{color:var(--brand);background:var(--brand-light);font-weight:600}
.step-flow .step.completed{color:var(--success)}
.step-flow .step .step-n{display:inline-block;width:20px;height:20px;border-radius:50%;background:var(--bg);color:var(--text-muted);font-size:0.625rem;line-height:20px;margin-right:4px;font-weight:700;transition:all var(--transition)}
.step-flow .step.current .step-n{background:var(--brand);color:#fff}
.step-flow .step.completed .step-n{background:var(--success);color:#fff}

/* ===== TABS（渐进式披露） ===== */
.tabs{display:flex;gap:0;background:var(--bg);border-radius:var(--radius);padding:4px;margin-bottom:var(--space-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.tabs-group{display:flex;gap:2px;flex:1}
.tabs-divider{width:1px;background:var(--border);margin:4px 6px;align-self:stretch}
.tab{flex:1;padding:10px 8px;text-align:center;font-size:var(--text-xs);font-weight:500;border-radius:calc(var(--radius) - 4px);cursor:pointer;transition:all var(--transition);color:var(--text-secondary);border:none;background:transparent;font-family:inherit;letter-spacing:0.3px;position:relative}
.tab:hover{color:var(--text);background:var(--brand-soft)}
.tab.active{background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;box-shadow:var(--shadow-brand);font-weight:600}
.tab.disabled{opacity:0.45;cursor:not-allowed;pointer-events:none}
.tab.disabled:hover{color:var(--text-muted);background:transparent}
.tab-panel{display:none;animation:panelIn 0.3s ease}
.tab-panel.active{display:block}
@keyframes panelIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

.zone-tab-bar{display:flex;gap:4px;align-items:center;flex-wrap:wrap;padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-lg);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.zone-tab-bar .zone-tab-label{font-size:0.6875rem;color:var(--text-muted);font-weight:500;margin-right:6px}
.zone-tab{display:inline-flex;flex-direction:column;align-items:center;gap:1px;padding:6px 14px 5px;font-size:0.6875rem;font-weight:500;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);font-family:var(--font);color:var(--text-secondary);background:var(--bg);position:relative;letter-spacing:0.2px;min-width:60px}
.zone-tab small{font-size:0.5625rem;opacity:0.7;font-weight:400}
.zone-tab:hover{background:var(--surface-hover);color:var(--text);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.zone-tab.active{color:#fff;font-weight:600;box-shadow:var(--shadow-md);transform:translateY(-1px)}
.zone-tab.zone-tab-add{background:transparent;border:2px dashed var(--border);color:var(--text-muted);font-size:0.625rem;padding:5px 12px;min-width:auto}
.zone-tab.zone-tab-add:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
.zone-tab.zone-tab-del{background:transparent;border:2px dashed var(--danger);color:var(--danger);font-size:0.625rem;padding:5px 8px;min-width:auto}
.zone-tab.zone-tab-del:hover{background:var(--danger-light)}

/* ===== CARDS & FORMS ===== */
.card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:var(--space-lg);overflow:hidden;transition:all var(--transition);box-shadow:var(--shadow-xs)}
.card:hover{box-shadow:var(--shadow-sm)}
.card-header{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);min-height:48px;background:linear-gradient(180deg,var(--brand-soft),var(--surface))}
.card-header h3{font-size:var(--text-sm);font-weight:600;color:var(--brand-deep);letter-spacing:0.3px}
.card-body{padding:var(--space-lg)}
.card-body.no-pad{padding:0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-md)}
.fg{margin-bottom:var(--space-md)}
.fg label{display:block;font-size:var(--text-xs);font-weight:500;color:var(--text-secondary);margin-bottom:4px;letter-spacing:0.2px}
.fg .hint{font-size:0.625rem;color:var(--text-muted);margin-left:4px;font-weight:400}
.fgi{width:100%;padding:8px var(--space-md);border:1.5px solid var(--border);border-radius:var(--radius-xs);font-size:var(--text-xs);font-family:var(--font);background:var(--surface);transition:all var(--transition);color:var(--text)}
.fgi:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.fgi.error{border-color:var(--danger);box-shadow:0 0 0 3px var(--danger-light)}
.fg-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}
.fg-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-sm)}
.fg-row-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:var(--space-sm)}

/* ===== PILLS ===== */
.pill{display:inline-block;padding:2px 8px;border-radius:10px;font-size:0.625rem;font-weight:500;letter-spacing:0.2px}
.pill-blue{background:var(--brand-light);color:var(--brand)}
.pill-green{background:var(--success-light);color:#047857}
.pill-amber{background:var(--amber-light);color:#b45309}
.pill-red{background:var(--danger-light);color:#b91c1c}
.pill-purple{background:var(--purple-light);color:var(--purple)}

/* ===== TABLES ===== */
table{width:100%;border-collapse:collapse;font-size:var(--text-xs)}
table thead{position:sticky;top:0;z-index:1}
table th{padding:9px 11px;text-align:left;font-weight:600;font-size:0.6875rem;color:var(--text-secondary);background:var(--surface-hover);border-bottom:2px solid var(--border);white-space:nowrap;letter-spacing:0.2px}
table td{padding:8px 11px;border-bottom:1px solid var(--border);vertical-align:middle}
table tbody tr:hover{background:var(--brand-soft)}
table .tr-cat td{background:var(--bg);font-weight:600;font-size:0.75rem;padding:6px 11px;color:var(--brand-deep)}
.txt-r{text-align:right;font-variant-numeric:tabular-nums}
.txt-c{text-align:center}
.summ-row{display:flex;justify-content:space-between;padding:5px 0;font-size:var(--text-xs)}
.summ-row.tl{border-top:2px solid var(--border);margin-top:var(--space-sm);padding-top:var(--space-sm);font-weight:700;font-size:var(--text-md);color:var(--brand)}
.divider{border:none;border-top:1px solid var(--border);margin:var(--space-lg) 0}
.scroll-x{overflow-x:auto;max-height:480px;overflow-y:auto}

/* ===== TEMPLATE HERO ===== */
.template-hero{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:var(--space-sm)}
.template-hero-card{border:2px solid var(--border);border-radius:var(--radius);padding:var(--space-lg) var(--space-lg);cursor:pointer;transition:all var(--transition);background:var(--surface);text-align:center;position:relative;overflow:hidden}
.template-hero-card:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-4px);box-shadow:0 12px 28px rgba(0,112,192,0.12)}
.template-hero-card.selected{border-color:var(--brand);background:var(--brand-light);box-shadow:0 0 0 3px var(--brand-light)}
.template-hero-card .tpl-icon{font-size:36px;margin-bottom:var(--space-sm);line-height:1}
.template-hero-card h4{font-size:var(--text-sm);margin-bottom:4px;color:var(--brand-deep);font-weight:600}
.template-hero-card p{font-size:0.6875rem;color:var(--text-secondary);line-height:1.4}
.template-hero-card .tpl-badge{position:absolute;top:var(--space-sm);right:var(--space-sm);background:var(--success);color:#fff;font-size:0.5625rem;padding:2px 6px;border-radius:8px;display:none}
.template-hero-card.selected .tpl-badge{display:block}

/* ===== CONFIRM AREA ===== */
.confirm-area{background:linear-gradient(135deg,var(--success-soft),var(--brand-soft));border:2px solid var(--success);border-radius:var(--radius);padding:var(--space-lg) var(--space-xl);margin-bottom:var(--space-lg);display:flex;align-items:center;gap:var(--space-lg);justify-content:space-between;flex-wrap:wrap}
.confirm-area .confirm-info{flex:1;min-width:200px}
.confirm-area .confirm-info h3{font-size:var(--text-base);color:var(--success);margin-bottom:4px}
.confirm-area .confirm-info p{font-size:0.6875rem;color:var(--text-secondary);line-height:1.5}
.confirm-area .confirm-btns{display:flex;gap:var(--space-sm);flex-shrink:0}

/* ===== DESIGN PREVIEW ===== */
.design-preview{background:var(--surface);border:1px solid var(--brand);border-radius:var(--radius);padding:var(--space-lg) var(--space-xl);margin-bottom:var(--space-lg);display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-sm);display:none}
.design-preview.show{display:grid}
.design-preview .dp-item{font-size:0.6875rem;line-height:1.6}
.design-preview .dp-item .dp-lbl{color:var(--text-muted);font-size:0.625rem}
.design-preview .dp-item .dp-val{color:var(--text);font-weight:600;font-size:var(--text-xs)}

/* ===== CANVAS / CAD TOOLBAR ===== */
canvas{display:block;border-radius:var(--radius);cursor:crosshair}
.cad-toolbar{display:flex;gap:6px;margin-bottom:var(--space-sm);align-items:center;flex-wrap:wrap;background:var(--surface);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.tool-group{display:flex;gap:1px;padding:3px;background:var(--bg);border-radius:var(--radius-xs)}
.tb{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:var(--radius-xs);cursor:pointer;color:var(--text-secondary);font-size:var(--text-base);transition:all var(--transition);position:relative}
.tb:hover{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}
.tb.active{background:var(--brand);color:#fff;box-shadow:0 2px 6px rgba(0,112,192,0.3)}
.tb[title]:hover::after{content:attr(title);position:absolute;bottom:-24px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;padding:3px 8px;border-radius:4px;font-size:0.625rem;white-space:nowrap;z-index:10;pointer-events:none}
.cad-separator{width:1px;height:24px;background:var(--border);margin:0 6px}
.cad-status{font-size:0.59375rem;color:var(--text-muted);margin-left:auto;display:flex;align-items:center;gap:var(--space-sm)}
.cad-status .ortho-indicator{color:var(--brand);font-weight:600;display:none}
.cad-status .ortho-indicator.on{display:inline}

/* ===== QUOTE ===== */
.quote-head{background:linear-gradient(135deg,var(--brand-soft) 0%,var(--brand-light) 100%);padding:var(--space-xl) var(--space-2xl);border-radius:var(--radius);margin-bottom:var(--space-lg);border:1px solid var(--brand-light)}
.quote-head h2{font-size:var(--text-xl);font-weight:700;color:var(--brand-deep);margin-bottom:6px;letter-spacing:0.5px}
.quote-head .company-name{font-size:var(--text-base);font-weight:600;color:var(--text);margin-bottom:var(--space-sm)}
.quote-head .meta{font-size:0.6875rem;color:var(--text-secondary);display:flex;flex-wrap:wrap;gap:var(--space-lg);line-height:2}
.quote-company-seal{float:right;width:110px;height:110px;position:relative;margin-top:-50px;margin-right:0;opacity:0.88;transform:rotate(-10deg)}
.quote-company-seal img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.quote-tabs{display:flex;gap:2px;margin-bottom:var(--space-md);background:var(--bg);border-radius:var(--radius-xs);padding:3px}
.quote-tab{padding:7px var(--space-lg);font-size:0.75rem;font-weight:500;border:none;background:transparent;border-radius:calc(var(--radius-xs)-2px);cursor:pointer;color:var(--text-secondary);transition:all var(--transition);font-family:inherit}
.quote-tab:hover{color:var(--text)}
.quote-tab.active{background:var(--surface);color:var(--brand);font-weight:600;box-shadow:var(--shadow-sm)}
.quote-content-panel{display:none}
.quote-content-panel.active{display:block}

/* ===== EXPORT PANEL ===== */
.export-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-md)}
.export-card{border:2px solid var(--border);border-radius:var(--radius);padding:var(--space-xl) var(--space-lg);text-align:center;cursor:pointer;transition:all var(--transition);background:var(--surface)}
.export-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,112,192,0.1)}
.export-card .export-icon{font-size:32px;margin-bottom:var(--space-sm)}
.export-card h4{font-size:var(--text-sm);margin-bottom:4px;color:var(--brand-deep)}
.export-card p{font-size:0.6875rem;color:var(--text-secondary)}

/* ===== MODAL / TOAST ===== */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(15,23,42,0.5);z-index:var(--z-modal-bg);align-items:center;justify-content:center;backdrop-filter:blur(3px)}
.modal-overlay.show{display:flex}
.modal{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);width:92%;max-width:580px;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-xl);animation:modalIn 0.25s ease}
@keyframes modalIn{from{opacity:0;transform:scale(0.95) translateY(-12px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-hd{padding:var(--space-lg) var(--space-xl);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--brand-soft)}
.modal-hd h3{font-size:var(--text-md);font-weight:600;color:var(--brand-deep)}
.modal-hd .close-btn{border:none;background:none;font-size:22px;cursor:pointer;color:var(--text-muted);line-height:1;padding:0 6px;transition:color var(--transition)}
.modal-hd .close-btn:hover{color:var(--text)}
.modal-bd{padding:var(--space-xl)}
.modal-ft{padding:var(--space-md) var(--space-xl);border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:var(--space-sm)}

.toast{position:fixed;bottom:var(--space-2xl);left:50%;transform:translateX(-50%);background:var(--text);color:#fff;padding:11px var(--space-xl);border-radius:24px;font-size:var(--text-sm);z-index:var(--z-toast);opacity:0;pointer-events:none;box-shadow:var(--shadow-lg);transition:opacity 0.3s,transform 0.3s}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.warning{background:var(--amber-light);color:#92400e;border:1px solid var(--amber)}

/* ===== OFFLINE INDICATOR (v15.4) ===== */
.offline-indicator{position:fixed;top:0;left:0;right:0;background:var(--danger);color:#fff;text-align:center;padding:4px 0;font-size:0.6875rem;font-weight:500;z-index:var(--z-toast);transform:translateY(-100%);transition:transform 0.3s ease;letter-spacing:0.5px}
.offline-indicator.show{transform:translateY(0)}
.offline-indicator.online-flash{background:var(--success);transform:translateY(0)}
.online-dot{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:6px;vertical-align:middle;animation:dotPulse 2s infinite}
.online-dot.on{background:#4ade80;box-shadow:0 0 6px rgba(74,222,128,0.6)}
.online-dot.off{background:#fbbf24;box-shadow:0 0 6px rgba(251,191,36,0.6)}
@keyframes dotPulse{0%,100%{opacity:1}50%{opacity:0.4}}

/* ===== MISC ===== */
.empty-state{text-align:center;padding:var(--space-3xl) var(--space-xl);color:var(--text-muted)}
.empty-state .empty-icon{font-size:48px;margin-bottom:var(--space-lg);opacity:0.4}
.empty-state h3{font-size:var(--text-base);color:var(--text-secondary);margin-bottom:var(--space-xs)}
.empty-state p{font-size:var(--text-xs);color:var(--text-muted);max-width:360px;margin:0 auto;line-height:1.6}
.app-footer{text-align:center;padding:var(--space-lg);font-size:0.6875rem;color:var(--text-muted);border-top:1px solid var(--border);margin-top:auto;background:var(--surface)}
.app-footer span{color:var(--brand);font-weight:600}
.shortcut-hint{font-size:0.625rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:3px}
.shortcut-hint kbd{background:var(--bg);border:1px solid var(--border-strong);border-radius:3px;padding:1px 5px;font-size:0.5625rem;font-family:var(--font-mono)}
.watermark{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-20deg);font-size:120px;font-weight:900;color:rgba(0,112,192,0.012);pointer-events:none;white-space:nowrap;z-index:0;user-select:none}
.warn-box{display:none;margin-bottom:var(--space-md);padding:var(--space-sm) var(--space-lg);background:var(--warning-soft);border:1px solid var(--warning);border-radius:var(--radius);font-size:0.6875rem}
.warn-box .warn-item{padding:3px 0;color:#92400e;line-height:1.5}
.bom-toolbar{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:var(--space-sm)}
.bom-toolbar .search-input{padding:6px var(--space-sm);font-size:0.6875rem;border:1px solid var(--border);border-radius:var(--radius-xs);width:170px;font-family:var(--font);transition:all var(--transition)}
.bom-toolbar .search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light)}

/* ===== RESPONSIVE ===== */
@media(max-width:1200px){
  .stat-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:1100px){
  .grid-2,.fg-row-4{grid-template-columns:1fr}
  .design-preview{grid-template-columns:repeat(2,1fr)}
  .main-wrap{padding:var(--space-lg)}
}
@media(max-width:768px){
  .tabs{flex-wrap:wrap}
  .tabs-divider{display:none}
  .tab{flex:1 1 auto;min-width:80px;font-size:0.625rem;padding:8px 6px}
  .stat-row{grid-template-columns:1fr}
  .design-preview{grid-template-columns:1fr}
  .main-wrap{padding:var(--space-md)}
  .modal{width:96%;max-height:92vh}
  .fg-row-3{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .app-header .logo-sub{display:none}
  .app-header .toolbar{gap:4px}
  .app-header{padding:0 var(--space-md)}
  .watermark{display:none}
  .fg-row-3{grid-template-columns:1fr}
  .template-hero{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
  .quote-head{padding:var(--space-lg)}
}
/* 大屏优化 */
@media(min-width:1920px){
  .main-wrap{max-width:1700px;padding:var(--space-2xl)}
  .stat-item{padding:var(--space-xl) var(--space-2xl)}
  .stat-item .val{font-size:var(--text-3xl)}
  .grid-2{gap:var(--space-xl)}
  .card-header{padding:var(--space-lg) var(--space-xl)}
  .card-body{padding:var(--space-xl)}
}

/* ===== PRINT ===== */
@media print{
  *{text-shadow:none!important;box-shadow:none!important}
  body{background:#fff!important;font-size:11px;--brand:#000;--brand-deep:#000;--text:#000;--text-secondary:#333;--text-muted:#666}
  .app-header,.tabs,.cad-toolbar,.modal-overlay,.stat-row,.app-footer,.template-hero,.watermark,.step-flow,.warn-box,.confirm-area,.design-preview,
  .toast,.print-overlay,.bom-toolbar,.zone-tab-bar,.proj-dropdown,.toolbar,.login-screen,#panel-compare,#panel-settings,#panel-layout,#panel-hvac
  {display:none!important}
  .tab-panel{display:block!important;break-inside:avoid;margin-bottom:12px}
  .tab-panel:not(#panel-quote):not(#panel-bom){display:none!important}
  .main-wrap{max-width:100%;padding:0;margin:0}
  .card{border:1px solid #ccc;box-shadow:none;margin-bottom:6px;break-inside:avoid;page-break-inside:avoid}
  .card-header{border-bottom:1px solid #999;background:#f9fafb!important;padding:8px 14px}
  .card-header h3{font-size:13px;color:#000}
  .card-body{padding:10px 14px}
  .quote-head{border:2px solid #000;background:#fff;padding:10px}
  .quote-head h2{font-size:20px;color:#000}
  .quote-company-seal{opacity:1;filter:none}
  table th{background:#eee!important;color:#000!important;border:1px solid #999;padding:4px 6px;font-size:10px}
  table td{border:1px solid #ccc;padding:3px 6px;font-size:10px}
  a[href]:after{content:none}
  h2,h3,h4{page-break-after:avoid}
  .card-header{page-break-after:avoid}
  -webkit-print-color-adjust:exact!important;
  print-color-adjust:exact!important;
  color-adjust:exact!important;
  @page{margin:15mm 12mm;size:A4 portrait}
}

/* 打印对话框（使用CSS变量） */
.print-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.55);z-index:var(--z-print);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .25s;backdrop-filter:blur(2px)}
.print-overlay.show{opacity:1}
.print-dialog{background:var(--bg);border-radius:var(--radius-sm);width:96vw;max-width:1150px;height:88vh;max-height:780px;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);overflow:hidden;font-family:var(--font)}
.print-dialog-layout{flex:1;display:flex;overflow:hidden}
.print-dialog-sidebar{width:270px;min-width:270px;background:var(--surface);border-right:1px solid var(--border);overflow-y:auto;padding:var(--space-lg) var(--space-lg);display:flex;flex-direction:column;gap:var(--space-lg)}
.print-sidebar-section{background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius-sm);padding:var(--space-md)}
.print-section-title{font-size:var(--text-sm);font-weight:700;color:var(--text);margin-bottom:var(--space-sm);padding-bottom:6px;border-bottom:1px solid var(--border)}
.print-field{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-sm);gap:var(--space-sm)}
.print-field label{font-size:var(--text-xs);color:var(--text-secondary);white-space:nowrap;min-width:50px}
.print-select{font-size:var(--text-xs);padding:5px var(--space-sm);border:1px solid var(--border-strong);border-radius:var(--radius-xs);background:var(--surface);color:var(--text);min-width:120px;font-family:inherit;cursor:pointer}
.print-select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light)}
.print-input{font-size:var(--text-xs);padding:5px var(--space-sm);border:1px solid var(--border-strong);border-radius:var(--radius-xs);font-family:inherit;color:var(--text)}
.print-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light)}
.print-spin{display:flex;align-items:center;gap:0}
.print-spin button{border:1px solid var(--border-strong);background:var(--surface);width:28px;height:28px;font-size:var(--text-base);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-family:inherit}
.print-spin button:first-child{border-radius:var(--radius-xs) 0 0 var(--radius-xs)}
.print-spin button:last-child{border-radius:0 var(--radius-xs) var(--radius-xs) 0}
.print-spin button:hover{background:var(--surface-hover)}
.print-spin input[type=number]{width:50px;height:28px;text-align:center;border:1px solid var(--border-strong);border-left:none;border-right:none;font-size:var(--text-sm);font-family:inherit;-moz-appearance:textfield}
.print-spin input[type=number]::-webkit-outer-spin-button,.print-spin input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.print-switch{position:relative;display:inline-block;width:40px;height:22px}
.print-switch input{opacity:0;width:0;height:0}
.print-switch-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:var(--border-strong);border-radius:11px;transition:.2s}
.print-switch-slider::before{content:'';position:absolute;height:16px;width:16px;left:3px;bottom:3px;background:var(--surface);border-radius:50%;transition:.2s}
.print-switch input:checked+.print-switch-slider{background:var(--brand)}
.print-switch input:checked+.print-switch-slider::before{transform:translateX(18px)}
.print-radio-group{display:flex;gap:var(--space-sm);flex-wrap:wrap}
.print-radio{display:flex;align-items:center;gap:4px;font-size:var(--text-xs);color:var(--text-secondary);cursor:pointer}
.print-radio input[type=radio]{accent-color:var(--brand)}
.print-dialog-preview{flex:1;display:flex;flex-direction:column;background:var(--border);overflow:hidden}
.print-preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:var(--space-sm) var(--space-lg);background:var(--surface);border-bottom:1px solid var(--border-strong);gap:var(--space-sm);flex-shrink:0}
.print-preview-title{font-size:var(--text-xs);font-weight:600;color:var(--text);white-space:nowrap}
.print-preview-nav{display:flex;align-items:center;gap:6px}
.print-preview-zoom{display:flex;align-items:center;gap:4px}
.print-nav-btn{border:1px solid var(--border-strong);background:var(--surface);padding:3px 8px;border-radius:var(--radius-xs);cursor:pointer;font-size:var(--text-xs);color:var(--text-secondary);font-family:inherit;transition:background .15s}
.print-nav-btn:hover{background:var(--surface-hover)}
.print-preview-canvas{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:var(--space-xl);background:var(--border-strong);position:relative}
.print-preview-canvas::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 19px,var(--border) 19px,var(--border) 20px),repeating-linear-gradient(90deg,transparent,transparent 19px,var(--border) 19px,var(--border) 20px);opacity:0.3}
.print-page-preview{background:var(--surface);box-shadow:var(--shadow-lg);overflow:hidden;position:relative;z-index:1;width:210mm;height:297mm;transition:width .2s,height .2s}
.print-page-preview.landscape{width:297mm;height:210mm}
.print-page-preview .page{width:210mm!important;min-height:297mm!important;padding:18mm 20mm 15mm!important;page-break-after:auto!important;transform-origin:top left}
.print-page-preview.landscape .page{width:297mm!important;min-height:210mm!important}
.print-page-preview .wm-container,.print-page-preview .stamp{display:block!important}
.print-page-preview .wm-item{opacity:0.08!important}
.print-thumb-bar{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);background:var(--surface-hover);border-top:1px solid var(--border);overflow-x:auto;flex-shrink:0;min-height:70px}
.print-thumb-item{flex-shrink:0;width:52px;height:68px;border:2px solid var(--border);border-radius:3px;background:var(--surface);cursor:pointer;overflow:hidden;position:relative;transition:border-color .15s,box-shadow .15s}
.print-thumb-item.active{border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light)}
.print-thumb-item:hover{border-color:var(--text-muted)}
.print-thumb-item .thumb-inner{transform:scale(0.18);transform-origin:top left;width:calc(210mm);pointer-events:none}
.print-thumb-item .thumb-label{position:absolute;bottom:0;left:0;right:0;text-align:center;font-size:0.5625rem;color:var(--text-secondary);background:rgba(255,255,255,0.9);padding:1px 0}
.print-preview-canvas.landscape-mode .print-page-preview{width:297mm;height:210mm}
.print-dialog-footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background:var(--surface);border-top:1px solid var(--border);flex-shrink:0}
@media (max-width:768px){
  .print-dialog{width:100vw;height:100vh;max-width:none;max-height:none;border-radius:0}
  .print-dialog-sidebar{width:220px;min-width:220px}
  .print-preview-canvas{padding:var(--space-md)}
}

.hidden{display:none!important}
input[type="range"]{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:var(--border);border-radius:3px;outline:none;cursor:pointer}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--brand);cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,0.2)}
input[type="range"]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--brand);cursor:pointer;border:none;box-shadow:0 1px 3px rgba(0,0,0,0.2)}

/* ===== 方案对比 ===== */
.compare-tbl{border-collapse:collapse;width:100%;font-size:var(--text-xs);min-width:600px}
.compare-tbl th{background:var(--brand-deep);color:#fff;padding:var(--space-sm) var(--space-md);text-align:center;font-weight:600;white-space:nowrap}
.compare-tbl th:first-child{text-align:left;background:var(--surface);color:var(--text);font-weight:600;border-right:2px solid var(--brand-deep)}
.compare-tbl td{padding:6px var(--space-md);text-align:center;border-bottom:1px solid var(--border);white-space:nowrap}
.compare-tbl td:first-child{text-align:left;font-weight:600;background:var(--brand-soft);color:var(--brand-deep)}
.compare-tbl .comp-sep td{border-bottom:2px solid var(--brand);padding:2px;background:var(--brand-soft)}
.compare-tbl .comp-best{color:var(--success);font-weight:700}
.compare-tbl .comp-high{color:var(--brand-deep);font-weight:600}
.compare-tbl .comp-rival td{background:var(--amber-soft)!important;color:#c2410c!important}
.compare-sel{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);background:var(--surface);font-size:var(--text-sm);user-select:none}
.compare-sel:hover{border-color:var(--brand);background:var(--brand-soft)}
.compare-sel.checked{border-color:var(--brand);background:var(--brand-light);box-shadow:0 0 0 3px var(--brand-light)}
.compare-sel input[type=checkbox]{width:16px;height:16px;accent-color:var(--brand)}

/* ===== 登录界面 ===== */
#login-overlay{position:fixed;inset:0;z-index:var(--z-login);background:var(--brand);display:flex;align-items:center;justify-content:center;transition:opacity 0.5s,visibility 0.5s}
#login-overlay.login-hidden{opacity:0;visibility:hidden;pointer-events:none}
.login-card{background:rgba(255,255,255,0.97);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:var(--space-3xl) var(--space-2xl) var(--space-2xl);width:420px;max-width:92vw;text-align:center}
.login-logo{width:68px;height:68px;margin:0 auto var(--space-lg);display:block;border-radius:var(--radius);box-shadow:0 4px 12px rgba(0,112,192,0.3)}
.login-title{font-size:var(--text-xl);font-weight:700;color:var(--brand-deep);margin-bottom:4px}
.login-sub{font-size:var(--text-xs);color:var(--text-muted);margin-bottom:var(--space-xl)}
.login-field{margin-bottom:var(--space-lg);text-align:left}
.login-field label{display:block;font-size:var(--text-xs);font-weight:600;color:var(--text-secondary);margin-bottom:5px}
.login-field input{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:var(--text-base);font-family:var(--font);transition:border-color var(--transition);outline:none}
.login-field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.login-error{color:var(--danger);font-size:var(--text-xs);margin-top:4px;min-height:18px;text-align:center}
.login-btn{width:100%;padding:12px;background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff;border:none;border-radius:var(--radius-sm);font-size:var(--text-md);font-weight:600;cursor:pointer;font-family:var(--font);transition:all var(--transition);margin-top:var(--space-sm)}
.login-btn:hover{box-shadow:0 6px 20px rgba(0,112,192,0.35);transform:translateY(-1px)}
.login-btn:active{transform:translateY(0)}
.login-btn:disabled{opacity:0.7;cursor:not-allowed;transform:none}
.login-footer{font-size:0.6875rem;color:var(--text-muted);margin-top:var(--space-xl);line-height:1.6}
.user-info-bar{display:flex;align-items:center;gap:var(--space-sm);padding:3px 12px;background:rgba(255,255,255,0.15);border-radius:20px;font-size:var(--text-xs)}
.user-info-bar .user-avatar{width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,0.25);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:var(--text-sm)}
.user-info-bar .logout-link{cursor:pointer;opacity:0.7;margin-left:2px;transition:opacity var(--transition)}
.user-info-bar .logout-link:hover{opacity:1}

/* ===== 响应式设计 (P1-6) ===== */
@media(max-width:768px){
  /* 顶部导航 */
  .app-header{flex-wrap:wrap;padding:8px 12px;gap:8px}
  .app-header .logo-area{flex:1 1 100%}
  .app-header .toolbar{flex-wrap:wrap;gap:6px}
  .app-header .toolbar-group{flex-wrap:wrap}
  /* 统计栏 */
  .stat-row{grid-template-columns:1fr 1fr;gap:8px}
  .stat-item{padding:10px}
  /* 步骤流程 */
  .step-flow{flex-wrap:wrap;gap:4px}
  .step-flow .step{flex:0 1 auto;font-size:11px;padding:6px 8px}
  .step-flow .step-connector{display:none}
  /* 标签栏 */
  .tabs{flex-wrap:wrap;gap:2px}
  .tabs .tab{font-size:12px;padding:8px 10px}
  /* 表单网格 */
  .fg-row-4{grid-template-columns:1fr 1fr;gap:8px}
  .fg-row-3{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  /* 卡片 */
  .card{margin:0 0 12px}
  .card-body{padding:12px}
  /* 表格水平滚动 */
  table{font-size:11px}
  .scroll-x{overflow-x:auto;-webkit-overflow-scrolling:touch}
  /* 弹窗 */
  .modal{width:95vw;max-width:none;margin:20px auto}
  .modal-bd{max-height:60vh}
  /* 按钮 */
  .btn{font-size:12px;padding:6px 12px}
  .btn-sm{font-size:11px;padding:4px 8px}
  /* 登录卡片 */
  .login-card{width:90vw;padding:24px 16px 16px}
  /* 方案对比 */
  .compare-grid{grid-template-columns:1fr}
  /* 打印预览 */
  .print-dialog{width:100vw;height:100vh;max-width:none;max-height:none;border-radius:0}
  .print-dialog-sidebar{width:200px;min-width:200px}
  /* Toast */
  .toast{left:10px;right:10px;max-width:none;text-align:center}
}

/* ===== 暗色模式 (P2-15) ===== */
[data-theme="dark"] {
  --brand: #3b82f6; --brand-deep: #1d4ed8; --brand-light: #1e3a5f; --brand-soft: #0f2744;
  --accent: #60a5fa; --accent-light: #1e3a5f;
  --bg: #0f172a; --surface: #1e293b; --surface-hover: #334155;
  --border: #334155; --border-strong: #475569;
  --text: #f1f5f9; --text-secondary: #94a3b8; --text-muted: #64748b;
  --success: #34d399; --success-light: #064e3b; --success-soft: #022c22;
  --warning: #fbbf24; --warning-light: #78350f; --warning-soft: #451a03;
  --danger: #f87171; --danger-light: #7f1d1d; --danger-soft: #450a0a;
  --purple: #a78bfa; --purple-light: #2e1065;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow: 0 2px 8px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.7);
  --shadow-brand: 0 4px 16px rgba(59,130,246,0.3);
  color-scheme: dark;
}

[data-theme="dark"] img { opacity: 0.9; }
[data-theme="dark"] .card { background: var(--surface); }
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea {
  background: var(--surface); color: var(--text); border-color: var(--border);
}
[data-theme="dark"] input:focus, [data-theme="dark"] select:focus, [data-theme="dark"] textarea:focus {
  border-color: var(--brand); box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}
[data-theme="dark"] .app-header { background: linear-gradient(135deg, #0f2744, #1e3a5f); }
[data-theme="dark"] .modal-overlay { background: rgba(0,0,0,0.7); }
[data-theme="dark"] .toast { box-shadow: 0 4px 16px rgba(0,0,0,0.5); }