/* ============================================================
   项目收支统计系统 - Nova 主题 v4.0
   Modern Design System | Device-Aware UI | Glassmorphism
   ============================================================ */

/* ── 统一过滤条 ───────────────────────────────────────────── */
.unified-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;       /* 不换行 */
  overflow-x: auto;        /* 超宽时滚动 */
  margin-bottom: 14px;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 10px;
  padding: 8px 12px;
  backdrop-filter: blur(10px);
}
.filter-tabs {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
  flex-wrap: nowrap;
}

/* ===== 设备检测 ===== */
body { }

/* ===== 设计令牌 (Nova Theme) ===== */
body {
  /* 主品牌色：渐变靛蓝 */
  --nova-primary:      #5b5ef4;
  --nova-primary-dark:  #4855e4;
  --nova-primary-light: #eceffe;
  --nova-primary-glow:  rgba(91,94,244,.18);

  /* 功能色 */
  --nova-success:     #10b981;
  --nova-success-bg:  #ecfdf5;
  --nova-danger:      #ef4444;
  --nova-danger-bg:   #fef2f2;
  --nova-warning:     #f59e0b;
  --nova-warning-bg:  #fffbeb;
  --nova-purple:      #8b5cf6;
  --nova-purple-bg:   #f5f3ff;
  --nova-pink:        #ec4899;
  --nova-pink-bg:     #fdf2f8;

  /* 背景层次 */
  --nova-bg:          #f0f2f8;
  --nova-bg-2:        #e8eaf2;
  --nova-card:        #ffffff;
  --nova-glass:       rgba(255,255,255,.72);

  /* 侧边栏（桌面） */
  --nova-sidebar-bg:  #1e2044;
  --nova-sidebar-2:   #262856;
  --nova-sidebar-3:  #2e3170;
  --nova-sidebar-text:#b8bbd8;
  --nova-sidebar-active: #ffffff;
  --nova-sidebar-w:   240px;

  /* 文字 */
  --nova-text:        #1a1d2e;
  --nova-text-2:      #4b5070;
  --nova-text-3:      #8b90b0;

  /* 边框/分隔 */
  --nova-border:      rgba(0,0,0,.07);
  --nova-border-2:    rgba(0,0,0,.12);

  /* 阴影 */
  --nova-shadow-xs:   0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --nova-shadow-sm:   0 2px 8px rgba(0,0,0,.07), 0 1px 3px rgba(0,0,0,.05);
  --nova-shadow-md:   0 4px 20px rgba(0,0,0,.09), 0 2px 8px rgba(0,0,0,.05);
  --nova-shadow-lg:   0 10px 40px rgba(0,0,0,.12), 0 4px 16px rgba(0,0,0,.06);
  --nova-shadow-xl:   0 20px 60px rgba(0,0,0,.16);
  --nova-glow:        0 0 0 3px var(--nova-primary-glow);

  /* 圆角 */
  --nova-radius:      12px;
  --nova-radius-sm:   8px;
  --nova-radius-lg:   16px;
  --nova-radius-xl:   24px;
  --nova-radius-full: 9999px;

  /* 过渡 */
  --nova-t:           220ms cubic-bezier(.4,0,.2,1);
  --nova-t-slow:      380ms cubic-bezier(.4,0,.2,1);

  /* 间距 */
  --nova-sp:          4px;
  --nova-topbar-h:    60px;
}

/* ===== 夜间模式（优化版 - 提升可读性）===== */
[data-theme="dark"] body {
  --nova-primary:      #818cf8;
  --nova-primary-dark: #6366f1;
  --nova-primary-light: rgba(129,140,248,.15);
  --nova-primary-glow:  rgba(129,140,248,.3);

  --nova-success:     #34d399;
  --nova-success-bg:  rgba(52,211,153,.15);
  --nova-danger:      #f87171;
  --nova-danger-bg:   rgba(248,113,113,.15);
  --nova-warning:     #fbbf24;
  --nova-warning-bg:  rgba(251,191,36,.15);
  --nova-purple:      #a78bfa;
  --nova-purple-bg:   rgba(167,139,250,.15);
  --nova-pink:        #f472b6;
  --nova-pink-bg:     rgba(244,114,182,.15);

  /* 优化：提升背景亮度，改善对比度 */
  --nova-bg:          #1a1d2e;
  --nova-bg-2:        #252840;
  --nova-card:        #252840;
  --nova-glass:       rgba(37,40,64,.9);

  /* 侧边栏稍暗但不压抑 */
  --nova-sidebar-bg:  #141625;
  --nova-sidebar-2:   #1e2235;
  --nova-sidebar-3:  #252a40;
  --nova-sidebar-text:#a0a8c0;
  --nova-sidebar-active: #e0e4f0;

  /* 文字颜色：提升对比度到 WCAG AA 标准 */
  --nova-text:        #f1f3f9;
  --nova-text-2:      #c4c9dc;
  --nova-text-3:      #888ea8;

  /* 边框更明显但不刺眼 */
  --nova-border:      rgba(255,255,255,.1);
  --nova-border-2:    rgba(255,255,255,.15);

  /* 阴影更深，提供更好的层次感 */
  --nova-shadow-xs:   0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
  --nova-shadow-sm:   0 2px 8px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.25);
  --nova-shadow-md:   0 4px 20px rgba(0,0,0,.45), 0 2px 8px rgba(0,0,0,.3);
  --nova-shadow-lg:   0 10px 40px rgba(0,0,0,.55), 0 4px 16px rgba(0,0,0,.35);
  --nova-shadow-xl:   0 20px 60px rgba(0,0,0,.65);
}

/* 深色模式专属：提升输入框和表格可读性 */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
  background-color: #1e2133 !important;
  border-color: rgba(255,255,255,.12) !important;
  color: #f1f3f9 !important;
}

[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
  border-color: var(--nova-primary) !important;
  box-shadow: 0 0 0 3px rgba(129,140,248,.25) !important;
  background-color: #1a1d2e !important;
}

[data-theme="dark"] input::placeholder {
  color: #6b7280 !important;
}

/* 深色模式表格优化 */
[data-theme="dark"] table {
  color: var(--nova-text);
}

[data-theme="dark"] thead {
  background: var(--nova-bg-2);
}

[data-theme="dark"] th {
  color: var(--nova-text-2);
  border-bottom-color: rgba(255,255,255,.1);
}

[data-theme="dark"] td {
  color: var(--nova-text);
  border-bottom-color: rgba(255,255,255,.06);
}

[data-theme="dark"] tbody tr {
  background: transparent;
  transition: background var(--nova-t), color var(--nova-t);
}

[data-theme="dark"] tbody tr:hover {
  background: rgba(255,255,255,.02) !important;
  border-left: 3px solid var(--nova-primary);
}

[data-theme="dark"] tbody tr:hover td {
  color: #c0c4d0 !important;
}

[data-theme="dark"] tbody tr:last-child td {
  border-bottom: none;
}

/* 深色模式悬停时保持文字可读 */
[data-theme="dark"] tbody tr:hover .tag,
[data-theme="dark"] tbody tr:hover .urgency-badge {
  background: rgba(255,255,255,.15) !important;
  color: #fff !important;
}

/* 深色模式按钮优化 */
[data-theme="dark"] .btn-default {
  background: var(--nova-bg-2);
  color: var(--nova-text-2);
  border-color: rgba(255,255,255,.12);
}

[data-theme="dark"] .btn-default:hover {
  background: rgba(129,140,248,.15);
  border-color: var(--nova-primary);
  color: #fff;
}

[data-theme="dark"] .btn-default:active {
  background: rgba(129,140,248,.2);
  transform: translateY(0);
}

/* 深色模式危险按钮 */
[data-theme="dark"] .btn-danger {
  background: rgba(248,113,113,.15);
  color: #f87171;
  border-color: rgba(248,113,113,.25);
}

[data-theme="dark"] .btn-danger:hover {
  background: rgba(248,113,113,.3);
  color: #fff;
  border-color: rgba(248,113,113,.4);
  transform: translateY(-1px);
}

[data-theme="dark"] .btn-danger:active {
  transform: translateY(0);
}

/* 深色模式主按钮 */
[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(129,140,248,.3);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 4px 16px rgba(129,140,248,.45);
  transform: translateY(-1px);
  background: linear-gradient(135deg, #9399f8, var(--nova-primary));
}

[data-theme="dark"] .btn-primary:active {
  transform: translateY(0);
}

/* 深色模式卡片悬停 */
[data-theme="dark"] .card:hover {
  box-shadow: var(--nova-shadow-md);
  border-color: rgba(255,255,255,.12);
}

[data-theme="dark"] .stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--nova-shadow-md);
  border-color: rgba(129,140,248,.3);
}

[data-theme="dark"] .contract-card:hover {
  box-shadow: var(--nova-shadow-md);
  transform: translateY(-1px);
  border-color: rgba(129,140,248,.3);
}

[data-theme="dark"] .analysis-card:hover {
  box-shadow: var(--nova-shadow-md);
  border-color: rgba(255,255,255,.12);
}

/* 深色模式标签优化 - 更鲜明 */
[data-theme="dark"] .tag-blue   { background: rgba(129,140,248,.2); color: #a5b4fc; }
[data-theme="dark"] .tag-green  { background: rgba(52,211,153,.2); color: #6ee7b7; }
[data-theme="dark"] .tag-red    { background: rgba(239,68,68,.2); color: #fca5a5; }
[data-theme="dark"] .tag-orange { background: rgba(251,191,36,.2); color: #fcd34d; }
[data-theme="dark"] .tag-gray   { background: var(--nova-bg-2); color: var(--nova-text-2); }
[data-theme="dark"] .tag-purple { background: rgba(167,139,250,.2); color: #c4b5fd; }
[data-theme="dark"] .tag-cyan   { background: rgba(6,182,212,.2); color: #67e8f9; }

/* 深色模式标签悬停 */
[data-theme="dark"] .tag:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

/* 深色模式导航项悬停 */
[data-theme="dark"] .nav-item:hover {
  background: rgba(129,140,248,.12);
  color: #fff;
}

/* 深色模式导航项激活 */
[data-theme="dark"] .nav-item.active {
  background: rgba(129,140,248,.15);
  color: #fff;
  font-weight: 600;
}

[data-theme="dark"] .nav-item.active::before {
  background: var(--nova-primary);
}

/* 深色模式侧边栏用户区 */
[data-theme="dark"] .logout-btn:hover {
  background: rgba(248,113,113,.15);
  color: #f87171;
}

/* 深色模式进度条 */
[data-theme="dark"] .progress-bar {
  background: rgba(255,255,255,.1);
}

[data-theme="dark"] .cch-progress-track {
  background: rgba(255,255,255,.1);
}

/* 深色模式紧急徽章 */
[data-theme="dark"] .urgency-badge.warn {
  background: rgba(251,191,36,.15);
  color: #fcd34d;
}

[data-theme="dark"] .urgency-badge.danger {
  background: rgba(239,68,68,.15);
  color: #fca5a5;
}

/* 深色模式弹窗优化 */
[data-theme="dark"] .modal-overlay {
  background: rgba(10,12,20,.65);
}

[data-theme="dark"] .modal {
  background: var(--nova-card);
  box-shadow: var(--nova-shadow-xl);
}

[data-theme="dark"] .modal-close {
  background: var(--nova-bg-2);
  color: var(--nova-text-2);
}

[data-theme="dark"] .modal-close:hover {
  background: rgba(239,68,68,.15);
  color: #f87171;
}

/* 深色模式顶部栏 */
[data-theme="dark"] .topbar {
  background: rgba(26,29,46,.9);
  border-bottom-color: rgba(255,255,255,.08);
}

/* 深色模式统计卡片 */
[data-theme="dark"] .stat-card {
  background: var(--nova-card);
  border-color: rgba(255,255,255,.08);
}

/* 深色模式通用卡片 */
[data-theme="dark"] .card {
  background: var(--nova-card);
  border-color: rgba(255,255,255,.08);
}

/* 深色模式合同卡片 */
[data-theme="dark"] .contract-card {
  background: var(--nova-card);
  border-color: rgba(255,255,255,.08);
}

[data-theme="dark"] .contract-card.warn-border {
  border-left-color: var(--nova-warning);
}

[data-theme="dark"] .contract-card.danger-border {
  border-left-color: var(--nova-danger);
}

/* 深色模式嵌套表格 */
[data-theme="dark"] .nested-table {
  background: rgba(0,0,0,.2);
}

[data-theme="dark"] .nested-table th {
  background: rgba(0,0,0,.25);
  border-top-color: rgba(255,255,255,.06);
}

[data-theme="dark"] .nested-table td {
  border-top-color: rgba(255,255,255,.06);
  background: transparent;
}

/* 深色模式内嵌表格 */
[data-theme="dark"] .inline-table th {
  background: var(--nova-bg-2);
  color: var(--nova-text-2);
}

[data-theme="dark"] .inline-table td {
  border-top-color: rgba(255,255,255,.06);
  background: transparent;
}

/* 深色模式吸顶工具栏 */
[data-theme="dark"] .toolbar-sticky {
  background: rgba(37,40,64,.85);
  border-bottom-color: rgba(255,255,255,.08);
}

/* 深色模式统一过滤条 */
[data-theme="dark"] .unified-filter {
  background: rgba(37,40,64,.7);
  border-color: rgba(255,255,255,.08);
}

[data-theme="dark"] .tab-bar {
  background: var(--nova-bg-2);
  border-color: rgba(255,255,255,.08);
}

/* 深色模式登录框优化 */
[data-theme="dark"] #loginScreen {
  background: linear-gradient(135deg, var(--nova-sidebar-bg) 0%, var(--nova-sidebar-2) 100%);
}

[data-theme="dark"] .login-box {
  background: rgba(37,40,64,.95);
  border-color: rgba(255,255,255,.1);
}

/* 深色模式通知提示 */
[data-theme="dark"] .toast {
  background: var(--nova-card);
  box-shadow: var(--nova-shadow-lg);
}

/* 深色模式搜索组件 */
[data-theme="dark"] .proj-search-wrap {
  border-color: rgba(255,255,255,.12);
  background: #1e2133;
}

[data-theme="dark"] .proj-search-wrap:focus-within {
  border-color: var(--nova-primary);
}

[data-theme="dark"] .proj-search-input {
  color: var(--nova-text);
}

/* 深色模式日期选择器按钮 */
[data-theme="dark"] .dr-btn {
  border-color: rgba(255,255,255,.12);
  background: var(--nova-bg-2);
  color: var(--nova-text-2);
}

[data-theme="dark"] .dr-btn:hover {
  border-color: var(--nova-primary);
  color: var(--nova-primary);
  background: rgba(129,140,248,.1);
}

[data-theme="dark"] .dr-btn-active {
  border-color: var(--nova-primary) !important;
  color: var(--nova-primary) !important;
  background: rgba(129,140,248,.12) !important;
}

/* 深色模式合同页筛选栏 */
[data-theme="dark"] .contract-filter-bar {
  background: rgba(37,40,64,.7);
  border-color: rgba(255,255,255,.08);
}

/* 深色模式移动端底部Tab Bar */
[data-theme="dark"] #mobileTabBar {
  background: rgba(26,29,46,.95);
  border-top-color: rgba(255,255,255,.08);
}

/* 深色模式：设置页 */
[data-theme="dark"] .settings-section {
  background: var(--nova-card);
  border-color: rgba(255,255,255,.08);
}

[data-theme="dark"] .settings-section h3 {
  color: var(--nova-text);
  border-bottom-color: rgba(255,255,255,.08);
}

/* 深色模式：空状态 */
[data-theme="dark"] .empty-state {
  color: var(--nova-text-3);
}

[data-theme="dark"] .empty-icon {
  opacity: .4;
}

/* 深色模式：分析页统计 */
[data-theme="dark"] .analysis-card {
  background: var(--nova-card);
  border-color: rgba(255,255,255,.08);
}

/* 主题切换过渡动画 */
body {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease, box-shadow .35s ease;
}
body *:not(.modal-overlay):not(.sidebar-overlay):not(.login-box):not(.toast) {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease, box-shadow .35s ease;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Inter","PingFang SC","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background: var(--nova-bg);
  color: var(--nova-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== 登录页重绘 ===== */
#loginScreen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--nova-sidebar-bg);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
#loginScreen::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 30%, rgba(91,94,244,.25) 0%, transparent 60%),
    radial-gradient(ellipse 500px 500px at 80% 70%, rgba(139,92,246,.18) 0%, transparent 60%),
    radial-gradient(ellipse 400px 300px at 50% 50%, rgba(16,185,129,.08) 0%, transparent 70%);
  pointer-events: none;
}
#loginScreen::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(91,94,244,.12) 0%, transparent 70%);
  pointer-events: none;
}
.login-box {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--nova-radius-xl);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--nova-shadow-xl), inset 0 1px 0 rgba(255,255,255,.1);
  animation: novaFadeUp .6s cubic-bezier(.4,0,.2,1) both;
}
.login-logo { text-align: center; margin-bottom: 36px; }
.login-logo .logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-purple));
  border-radius: var(--nova-radius-lg);
  font-size: 28px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(91,94,244,.35);
}
.login-logo h1 {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -.3px;
}
.login-logo p {
  color: rgba(255,255,255,.45);
  font-size: 13px;
  letter-spacing: .5px;
}
.login-form .form-group { margin-bottom: 20px; }
.login-form label {
  display: block;
  color: rgba(255,255,255,.6);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: .3px;
}
.login-form input {
  width: 100%;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--nova-radius-sm);
  padding: 12px 14px;
  color: #fff;
  font-size: 14px;
  transition: var(--nova-t);
  outline: none;
}
.login-form input::placeholder { color: rgba(255,255,255,.3); }
.login-form input:focus {
  border-color: var(--nova-primary);
  background: rgba(91,94,244,.12);
  box-shadow: var(--nova-glow);
}
.login-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--nova-radius-sm);
  padding: 13px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--nova-t);
  margin-top: 8px;
  letter-spacing: .5px;
}
.login-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(91,94,244,.4);
}
.login-btn:active { transform: translateY(0); }
.login-error {
  margin-top: 12px;
  color: #f87171;
  font-size: 13px;
  text-align: center;
  min-height: 20px;
}
.login-company {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
}
.company-name {
  color: rgba(255,255,255,.5);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 6px;
}
.company-detail { color: rgba(255,255,255,.25); font-size: 11px; line-height: 1.8; }

/* ===== 整体布局 ===== */
.app-wrap {
  display: flex;
  min-height: 100vh;
}

/* ===== 侧边栏（桌面）===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--nova-sidebar-w);
  background: var(--nova-sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: width var(--nova-t-slow), transform var(--nova-t-slow);
  overflow: hidden;
  box-shadow: 4px 0 20px rgba(0,0,0,.15);
}
/* 渐变顶边装饰 */
.sidebar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--nova-primary), var(--nova-purple), var(--nova-pink));
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
}
.sidebar-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-purple));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(91,94,244,.35);
}
.sidebar-logo h2 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
  letter-spacing: -.2px;
}
.sidebar-logo span {
  color: rgba(255,255,255,.3);
  font-size: 11px;
  display: block;
  margin-top: 1px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 10px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.1) transparent;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 4px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--nova-radius-sm);
  color: var(--nova-sidebar-text);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--nova-t);
  margin-bottom: 2px;
  white-space: nowrap;
  position: relative;
}
.nav-item .nav-icon { font-size: 15px; flex-shrink: 0; width: 20px; text-align: center; }
.nav-item:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.nav-item.active {
  background: linear-gradient(90deg, rgba(91,94,244,.2), rgba(91,94,244,.12));
  color: #fff;
  font-weight: 600;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--nova-primary);
  border-radius: 0 3px 3px 0;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
}
.user-avatar {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.user-name {
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.user-role { color: rgba(255,255,255,.35); font-size: 11px; }
.logout-btn {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255,255,255,.3);
  cursor: pointer;
  font-size: 16px;
  padding: 4px 6px;
  border-radius: 6px;
  transition: var(--nova-t);
}
.logout-btn:hover { background: rgba(255,255,255,.08); color: rgba(255,255,255,.7); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(2px);
  z-index: 199;
  opacity: 0;
  transition: opacity var(--nova-t);
}

/* ===== 主内容区 ===== */
.main {
  margin-left: var(--nova-sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--nova-t-slow);
}

/* ===== 顶部栏 ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nova-topbar-h);
  background: rgba(240,242,248,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nova-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  gap: 16px;
}
.hamburger-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--nova-text-2);
  padding: 6px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--nova-t);
  display: none; /* 桌面默认隐藏 */
}
.hamburger-btn:hover { background: var(--nova-border); }

.topbar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--nova-text);
  letter-spacing: -.3px;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--nova-text-2);
  font-size: 13px;
}
.sep { color: var(--nova-border-2); }

/* ===== 主题切换按钮 ===== */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--nova-border-2);
  border-radius: var(--nova-radius-sm);
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 17px;
  transition: var(--nova-t);
  color: var(--nova-text-2);
  flex-shrink: 0;
}
.theme-toggle-btn:hover {
  background: var(--nova-bg-2);
  border-color: var(--nova-primary);
  color: var(--nova-primary);
}
.time { color: var(--nova-text-3); font-size: 12px; }

/* ===== 内容区 ===== */
.content {
  flex: 1;
  padding: 24px;
}

/* ===== 页面 ===== */
.page { display: none; }
.page.active { display: block; animation: novaFadeUp .3s ease both; }

@keyframes novaFadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== 统计卡片网格 ===== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 20px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
  transition: var(--nova-t);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--nova-radius) var(--nova-radius) 0 0;
}
.stat-card.blue::before   { background: linear-gradient(90deg, var(--nova-primary), var(--nova-purple)); }
.stat-card.green::before  { background: linear-gradient(90deg, #10b981, #059669); }
.stat-card.orange::before { background: linear-gradient(90deg, #f59e0b, #d97706); }
.stat-card.red::before    { background: linear-gradient(90deg, #ef4444, #dc2626); }
.stat-card.purple::before { background: linear-gradient(90deg, #8b5cf6, #7c3aed); }
.stat-card.pink::before   { background: linear-gradient(90deg, #ec4899, #db2777); }
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--nova-shadow-md); }
.stat-label { font-size: 12px; color: var(--nova-text-3); font-weight: 500; margin-bottom: 8px; letter-spacing: .3px; }
.stat-value { font-size: 26px; font-weight: 800; color: var(--nova-text); letter-spacing: -1px; line-height: 1.2; }
.stat-sub { font-size: 11px; color: var(--nova-text-3); margin-top: 4px; }

/* ===== 图表网格 ===== */
.chart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}
.chart-grid:has(.card:only-child) { grid-template-columns: 1fr; }

/* ===== 通用卡片 ===== */
.card {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 20px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
  transition: var(--nova-t);
}
.card:hover { box-shadow: var(--nova-shadow-md); }
.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--nova-text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -.2px;
}
.chart-wrap { height: 240px; position: relative; }

/* ===== 页面头部 ===== */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; border-radius: var(--nova-radius-sm); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead { background: var(--nova-bg-2); }
th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--nova-text-2);
  font-size: 12px;
  white-space: nowrap;
  letter-spacing: .3px;
  border-bottom: 1px solid var(--nova-border);
}
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--nova-border);
  color: var(--nova-text);
  vertical-align: middle;
}
tbody tr {
  transition: background var(--nova-t);
}
tbody tr:hover { background: rgba(91,94,244,.08); border-left: 3px solid var(--nova-primary); }
tbody tr:last-child td { border-bottom: none; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: var(--nova-radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--nova-t);
  white-space: nowrap;
  letter-spacing: .2px;
  line-height: 1.4;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(91,94,244,.25);
}
.btn-primary:hover { box-shadow: 0 4px 16px rgba(91,94,244,.35); }
.btn-default {
  background: var(--nova-bg-2);
  color: var(--nova-text-2);
  border: 1px solid var(--nova-border-2);
}
.btn-default:hover { background: var(--nova-bg); }
.btn-danger {
  background: var(--nova-danger-bg);
  color: var(--nova-danger);
  border: 1px solid rgba(239,68,68,.15);
}
.btn-danger:hover { background: #fee2e2; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11px; }

/* ===== 标签 ===== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  border-radius: var(--nova-radius-full);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.tag-blue   { background: var(--nova-primary-light); color: var(--nova-primary); }
.tag-green  { background: var(--nova-success-bg); color: var(--nova-success); }
.tag-red    { background: var(--nova-danger-bg);  color: var(--nova-danger); }
.tag-orange { background: var(--nova-warning-bg); color: var(--nova-warning); }
.tag-gray   { background: var(--nova-bg-2); color: var(--nova-text-2); }
.tag-purple { background: var(--nova-purple-bg); color: var(--nova-purple); }
.tag-cyan   { background: #ecfeff; color: #0891b2; }

/* ===== 表单元素 ===== */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--nova-text-2);
  margin-bottom: 6px;
  letter-spacing: .3px;
}
input, select, textarea {
  width: 100%;
  background: var(--nova-card);
  border: 1.5px solid var(--nova-border-2);
  border-radius: var(--nova-radius-sm);
  padding: 9px 12px;
  font-size: 13px;
  color: var(--nova-text);
  transition: var(--nova-t);
  outline: none;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--nova-primary);
  box-shadow: var(--nova-glow);
}
input::placeholder { color: var(--nova-text-3); }

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,18,40,.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}
.modal-overlay.show { display: flex; animation: novaFadeIn .2s ease forwards; }
.modal {
  background: var(--nova-card);
  border-radius: var(--nova-radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--nova-shadow-xl);
  position: relative;
  animation: novaSlideUp .3s cubic-bezier(.4,0,.2,1) forwards;
}
.modal-sm { max-width: 420px; }
.modal-lg { max-width: 900px; }
.modal-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--nova-text);
  margin-bottom: 20px;
  letter-spacing: -.3px;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--nova-bg-2);
  border: none;
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nova-text-2);
  transition: var(--nova-t);
}
.modal-close:hover { background: var(--nova-danger-bg); color: var(--nova-danger); }

@keyframes novaFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes novaSlideUp {
  from { opacity: 0; transform: translateY(20px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ===== 合同卡片（桌面） ===== */
.contract-card {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 18px 20px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
  transition: var(--nova-t);
}
.contract-card:hover {
  box-shadow: var(--nova-shadow-md);
  transform: translateY(-1px);
}
.creator-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--nova-text-3);
}
.creator-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--nova-primary);
  border-radius: 50%;
}
.summary-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--nova-text-2);
  flex-wrap: wrap;
}
.summary-bar strong { color: var(--nova-text); font-weight: 700; }

/* ===== 分页器 ===== */
.pager { display: flex; justify-content: center; padding: 12px 0; }

/* ===== 合同页标签切换 ===== */
.tab-bar {
  display: flex;
  gap: 4px;
  background: var(--nova-bg-2);
  padding: 4px;
  border-radius: var(--nova-radius-sm);
  border: 1px solid var(--nova-border);
}
.tab-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: none;
  background: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--nova-text-2);
  cursor: pointer;
  transition: var(--nova-t);
}
.tab-btn.active {
  background: var(--nova-card);
  color: var(--nova-primary);
  font-weight: 700;
  box-shadow: var(--nova-shadow-xs);
}

/* ===== 进度条 ===== */
.progress-bar {
  height: 6px;
  background: var(--nova-bg-2);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--nova-primary), var(--nova-purple));
  transition: width .6s cubic-bezier(.4,0,.2,1);
}

/* ===== 吸顶工具栏（果冻玻璃效果） ===== */
.toolbar-sticky {
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 16px;
  margin: -8px -16px 14px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.6);
  border-radius: 0 0 16px 16px;
  box-shadow: 0 4px 24px rgba(99,102,241,0.08), 0 1.5px 6px rgba(0,0,0,0.04);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}
.toolbar-sticky:has(~ *:not(:empty)) {
  box-shadow: 0 6px 28px rgba(99,102,241,0.13), 0 2px 8px rgba(0,0,0,0.06);
}

/* ===== 过滤栏 ===== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.filter-bar select, .filter-bar input {
  width: auto;
  min-width: 140px;
}

/* ===== 工具提示 ===== */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--nova-text-3); }
.font-bold { font-weight: 700; }

/* ===== 选择项 ===== */
.prod-lib-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.prod-lib-tabs .tab-btn { padding: 5px 12px; }

/* ===== 模态内嵌表格 ===== */
.nested-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  background: var(--nova-bg);
  border-radius: var(--nova-radius-sm);
  overflow: hidden;
}
.nested-table th {
  background: var(--nova-bg-2);
  padding: 6px 10px;
  font-size: 11px;
}
.nested-table td {
  padding: 6px 10px;
  border-top: 1px solid var(--nova-border);
}

/* ===== 通知提示 ===== */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--nova-card);
  border-radius: var(--nova-radius-sm);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--nova-shadow-lg);
  border-left: 4px solid var(--nova-primary);
  animation: toastIn .3s ease forwards;
  pointer-events: auto;
  max-width: 320px;
}
.toast.success { border-left-color: var(--nova-success); }
.toast.error   { border-left-color: var(--nova-danger); }
.toast.info    { border-left-color: var(--nova-info, var(--nova-primary)); }
.toast.warning { border-left-color: var(--nova-warning); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(20px); }
}

/* ===== 分析页 ===== */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.analysis-card {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 20px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
}
.analysis-stat {
  text-align: center;
  padding: 24px 0;
}
.analysis-stat .big {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--nova-primary), var(--nova-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -2px;
  line-height: 1.1;
}
.analysis-stat .label { color: var(--nova-text-3); font-size: 13px; margin-top: 8px; }
.analysis-stat .sub { color: var(--nova-text-3); font-size: 12px; margin-top: 4px; }

/* ===== 设置页 ===== */
.settings-section {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 24px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
  margin-bottom: 16px;
}
.settings-section h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--nova-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--nova-border);
}

/* ===== 设置权限矩阵 ===== */
.perm-matrix {
  overflow-x: auto;
}
.perm-matrix table { font-size: 12px; }

/* ===== 空状态 ===== */
.empty-state { text-align: center; padding: 40px 20px; }
.empty-icon { font-size: 40px; margin-bottom: 12px; opacity: .5; }
.empty-text { color: var(--nova-text-3); font-size: 14px; }

/* ===== 编辑内嵌表格 ===== */
.inline-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.inline-table th {
  background: var(--nova-bg-2);
  padding: 6px 10px;
  font-size: 11px;
  text-align: left;
  font-weight: 600;
  color: var(--nova-text-2);
}
.inline-table td { padding: 5px 6px; border-top: 1px solid var(--nova-border); }
.inline-table input, .inline-table select {
  padding: 6px 8px;
  font-size: 12px;
}

/* ===== 多行文本 ===== */
textarea { resize: vertical; min-height: 60px; }

/* ===== 辅助 ===== */
.sep { color: var(--nova-border-2); }

/* ===== 响应式断点（平板） ===== */
@media (max-width: 1024px) {
  .chart-grid { grid-template-columns: 1fr; }
}

/* ================================================================
   🎯 移动端独立 UI（<= 768px）
   ================================================================ */
@media (max-width: 768px) {

  /* 隐藏桌面侧边栏 */
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
    box-shadow: var(--nova-shadow-xl);
  }
  .sidebar.mobile-open {
    transform: translateX(0);
  }

  /* 移动端遮罩 */
  .sidebar-overlay {
    display: block;
    opacity: 0;
    pointer-events: none;
  }
  .sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }

  /* 移动端顶部栏 */
  .topbar {
    padding: 0 16px;
    background: rgba(255,255,255,.9);
  }
  .hamburger-btn { display: flex !important; }
  .topbar-right .sep,
  .topbar-right .time { display: none; }

  /* 移动端主内容 */
  .main {
    margin-left: 0;
    padding-bottom: 72px; /* 给底部导航留空间 */
  }
  .content {
    padding: 16px;
  }

  /* 移动端统计卡片 */
  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .stat-card { padding: 14px; }
  .stat-value { font-size: 20px; }

  /* 移动端表格横向滚动 */
  table { font-size: 12px; }
  th, td { padding: 8px 8px; white-space: nowrap; }

  /* 移动端弹窗全屏 */
  .modal-overlay { align-items: flex-end; padding: 0; }
  .modal-overlay.show { animation: novaSlideUpMobile .3s ease forwards; }
  .modal {
    max-width: 100%;
    max-height: 92vh;
    border-radius: var(--nova-radius-lg) var(--nova-radius-lg) 0 0;
    padding: 20px;
    animation: novaSlideUpMobile .3s cubic-bezier(.4,0,.2,1) forwards;
  }
  .modal-title { font-size: 16px; }

  /* 移动端内嵌表格 */
  .inline-table { font-size: 11px; }
  .inline-table input, .inline-table select { padding: 5px 6px; font-size: 11px; }

  /* 移动端登录 */
  .login-box { padding: 32px 24px; }

  /* ===== 底部 Tab Bar ===== */
  #mobileTabBar {
    display: flex !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--nova-border);
    z-index: 300;
    box-shadow: 0 -4px 20px rgba(0,0,0,.08);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    cursor: pointer;
    transition: var(--nova-t);
    color: var(--nova-text-3);
    border: none;
    background: none;
    font-size: 10px;
    font-weight: 600;
    padding: 8px 0;
    position: relative;
  }
  .tab-item::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--nova-primary);
    border-radius: 0 0 2px 2px;
    transition: width var(--nova-t);
  }
  .tab-item.active { color: var(--nova-primary); }
  .tab-item.active::before { width: 28px; }
  .tab-item .tab-icon { font-size: 20px; line-height: 1; }
  .tab-item.active .tab-icon { transform: scale(1.1); }
  .tab-item:hover { color: var(--nova-primary); }

  /* 移动端卡片 */
  .contract-card { padding: 14px; }
  .contract-card [style*="grid-template-columns"] {
    grid-template-columns: 1fr 1fr !important;
  }

  /* 移动端页面头部 */
  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; }

  /* 移动端过滤栏 */
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar select, .filter-bar input { min-width: 100%; }

  /* 移动端分析页 */
  .analysis-grid { grid-template-columns: 1fr; }
  .analysis-stat .big { font-size: 36px; }

  /* 移动端设置页 */
  .settings-section { padding: 16px; }
  .settings-section h3 { font-size: 14px; }

  /* 移动端汇总条 */
  .summary-bar { font-size: 12px; }

  /* 移动端弹窗内表格 */
  .nested-table { font-size: 11px; }
}

@media (max-width: 768px) {
  @keyframes novaSlideUpMobile {
    from { transform: translateY(100%); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
  }
}

/* 桌面端隐藏移动端 Tab Bar */
@media (min-width: 769px) {
  #mobileTabBar { display: none !important; }
}

/* 极小屏调整 */
@media (max-width: 375px) {
  .stat-grid { grid-template-columns: 1fr; }
  .contract-card [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

/* 打印样式 */
@media print {
  .sidebar, .topbar, .hamburger-btn, #mobileTabBar, .modal-overlay { display: none !important; }
  .main { margin-left: 0 !important; }
  .page { display: block !important; }
}

/* ══════════════════════════════════════════════════════
   搜索型项目下拉组件
══════════════════════════════════════════════════════ */
.proj-search-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 200px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  overflow: visible;
}
.proj-search-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.12);
}
.proj-search-input {
  border: none;
  outline: none;
  background: transparent;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--text);
  width: 220px;
  min-width: 160px;
  border-radius: 8px;
  cursor: text;
}
.proj-search-input::placeholder {
  color: #b0b8c8;
  font-size: 12px;
}
/* 下拉箭头指示 */
.proj-search-wrap::after {
  content: '⌄';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  pointer-events: none;
  z-index: 1;
}

/* ══════════════════════════════════════════════════════
   日期范围选择器
══════════════════════════════════════════════════════ */
.date-range-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.date-range-btns {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.dr-btn {
  padding: 3px 10px;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.dr-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(74, 144, 226, 0.05);
}
.dr-btn-active {
  border-color: var(--primary) !important;
  color: var(--primary) !important;
  background: rgba(74, 144, 226, 0.08) !important;
  font-weight: 600;
}
.date-range-inputs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .proj-search-wrap {
    width: 100%;
    min-width: unset;
  }
  .proj-search-input {
    width: 100%;
    min-width: unset;
  }
  .date-range-inputs {
    flex-direction: column;
    align-items: flex-start;
  }
  .date-range-inputs input[type="date"] {
    width: 100% !important;
  }
}

/* ================================================================
   🎯 iPad Air / 中等平板专属适配 (769px - 1024px)
   iPad Air 竖屏 viewport ≈ 1180px，扣除侧边栏 240px，主内容区 ≈ 940px
   ================================================================ */
@media (min-width: 769px) and (max-width: 1024px) {

  /* 主内容区：最大宽度限制 + 自动居中 */
  .main {
    margin-left: var(--nova-sidebar-w);
    width: calc(100vw - var(--nova-sidebar-w));
  }
  .content {
    padding: 20px 20px;
    max-width: 100%;
  }

  /* 页面容器：表格超宽时允许滚动，但保持内边距 */
  .page > .table-wrap {
    overflow-x: auto;
    border-radius: var(--nova-radius-sm);
    /* 有滚动条时平滑 */
    scroll-behavior: smooth;
  }

  /* 通用卡片：iPad 最佳单列宽度 */
  .card {
    padding: 16px 18px;
  }

  /* 统计卡片：iPad 最佳 3 列 */
  .stat-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
  }

  /* 合同卡片：优化布局 */
  .contract-card {
    padding: 14px 16px;
  }

  /* 合同信息行：超宽自动换行，避免单行撑破 */
  .contract-info-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    font-size: 12.5px;
  }

  /* 内嵌嵌套表格（合同付款节点、增项表）：紧凑 */
  .nested-table th,
  .nested-table td {
    padding: 5px 8px;
    font-size: 12px;
  }

  /* 进度条在 iPad 上稍微细一点 */
  .progress-bar { height: 5px; }

  /* 弹窗 iPad 优化：更大宽度 */
  .modal {
    max-width: 700px;
    padding: 24px;
  }
  .modal-lg {
    max-width: 880px;
  }

  /* 合同详情弹窗内表格可横向滚动 */
  .contract-detail-tables {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* ================================================================
   合同管理卡片专用样式（全屏宽度优化）
   ================================================================ */
.contract-card {
  background: var(--nova-card);
  border-radius: var(--nova-radius);
  padding: 16px 20px;
  box-shadow: var(--nova-shadow-sm);
  border: 1px solid var(--nova-border);
  border-left: 4px solid var(--nova-primary);
  transition: var(--nova-t);
}
.contract-card:hover {
  box-shadow: var(--nova-shadow-md);
}
.contract-card.warn-border { border-left-color: var(--nova-warning); }
.contract-card.danger-border { border-left-color: var(--nova-danger); }

/* 卡片头部：标题行 */
.cch-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.cch-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--nova-text);
  cursor: pointer;
}
.cch-title:hover { color: var(--nova-primary); }
.cch-code {
  font-size: 12px;
  color: var(--nova-text-3);
  margin-left: 8px;
  font-weight: 400;
}
.cch-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* 卡片主体：信息网格 */
.cch-body {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px 16px;
  margin-bottom: 14px;
}
.cch-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cch-item-label {
  font-size: 11px;
  color: var(--nova-text-3);
  font-weight: 500;
}
.cch-item-value {
  font-size: 13px;
  color: var(--nova-text);
  font-weight: 600;
}
.cch-item-value.large {
  font-size: 15px;
}
.cch-item-value.mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* 进度条区域 */
.cch-progress {
  margin-bottom: 14px;
}
.cch-progress-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--nova-text-2);
  margin-bottom: 6px;
}
.cch-progress-track {
  height: 7px;
  background: var(--nova-bg-2);
  border-radius: 999px;
  overflow: hidden;
}
.cch-progress-fill {
  height: 100%;
  border-radius: 999px;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}
.cch-progress-fill.full  { background: linear-gradient(90deg, #34d399, #10b981); }
.cch-progress-fill.partial { background: linear-gradient(90deg, #73d13d, #52c41a); }
.cch-progress-fill.none  { background: linear-gradient(90deg, #ffd591, #fa8c16); }

/* 付款节点内嵌表格 */
.cch-nodes {
  margin-bottom: 12px;
}
.cch-nodes-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--nova-text-2);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 增项区域 */
.cch-additions {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--nova-border);
}
.cch-additions-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--nova-text-2);
  margin-bottom: 8px;
}

/* 紧急状态徽章 */
.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
}
.urgency-badge.warn  { background: #fff7e6; color: #fa8c16; }
.urgency-badge.danger { background: #fff2f0; color: #ff4d4f; }

/* 合同页筛选栏：紧凑 */
.contract-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--nova-border);
  border-radius: var(--nova-radius-sm);
  backdrop-filter: blur(8px);
}
.contract-filter-bar select,
.contract-filter-bar input {
  width: auto;
  min-width: 130px;
  padding: 6px 10px;
  font-size: 12.5px;
}
.contract-filter-bar .date-range-wrap {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
}
.contract-filter-bar .date-range-wrap input {
  min-width: 120px;
  padding: 6px 10px;
  font-size: 12.5px;
}

/* iPad 合同卡片信息网格优化 */
@media (min-width: 769px) and (max-width: 1024px) {
  .cch-body {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 6px 14px;
  }
  .contract-filter-bar {
    gap: 6px;
  }
  .contract-filter-bar select,
  .contract-filter-bar input {
    min-width: 110px;
    padding: 5px 8px;
    font-size: 12px;
  }
}

/* 移动端合同卡片：保持堆叠 */
@media (max-width: 768px) {
  .contract-card { padding: 12px 14px; }
  .cch-top { flex-direction: column; gap: 6px; }
  .cch-actions { width: 100%; justify-content: flex-end; }
  .cch-body { grid-template-columns: 1fr 1fr; gap: 6px 10px; }
  .contract-filter-bar { flex-direction: column; align-items: stretch; }
  .contract-filter-bar select,
  .contract-filter-bar input { min-width: unset; width: 100%; }
}

/* ================================================================
   通用页面表格响应式包装
   ================================================================ */
/* 表格外层包装：超宽时横向滚动，iPad 和桌面端更优雅 */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--nova-radius-sm);
  -webkit-overflow-scrolling: touch;
}
.table-container table {
  min-width: 600px; /* 强制表格最小宽度，确保信息不压缩变形 */
}

/* 移动端 table-container：全宽无最小宽度 */
@media (max-width: 768px) {
  .table-container table { min-width: unset; }
}

/* ================================================================
   侧边栏折叠功能
   ================================================================ */
/* 侧边栏头部（折叠按钮区域） */
.sidebar-header {
  display: flex;
  justify-content: flex-end;
  padding: 8px 8px 0 0;
}

.sidebar-collapse-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: rgba(255,255,255,.1);
  color: var(--nova-sidebar-text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--nova-t);
}

.sidebar-collapse-btn:hover {
  background: rgba(255,255,255,.2);
  color: #fff;
}

/* 侧边栏 Logo 区域 */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 16px;
  overflow: hidden;
}

.sidebar-logo .logo-icon {
  font-size: 22px;
  flex-shrink: 0;
}

.sidebar-title {
  overflow: hidden;
  transition: opacity var(--nova-t);
}

.sidebar-title h2 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  margin: 0;
}

.sidebar-title span {
  font-size: 11px;
  color: var(--nova-sidebar-text);
}

/* 导航项文字 */
.nav-text {
  overflow: hidden;
  transition: opacity var(--nova-t);
  white-space: nowrap;
}

/* ================================================================
   侧边栏折叠状态
   ================================================================ */
.sidebar.collapsed {
  width: 68px !important;
}

.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 8px 0 0;
}

.sidebar.collapsed .collapse-icon {
  transform: rotate(180deg);
}

.sidebar.collapsed .sidebar-logo {
  justify-content: center;
  padding: 8px 0 16px;
}

.sidebar.collapsed .sidebar-title {
  display: none;
}

.sidebar.collapsed .sidebar-nav .nav-item {
  justify-content: center;
  padding: 11px 0;
}

.sidebar.collapsed .sidebar-nav .nav-item .nav-text,
.sidebar.collapsed .sidebar-nav .nav-item .nav-text * {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
}

.sidebar.collapsed .sidebar-nav .nav-icon {
  font-size: 18px;
}

.sidebar.collapsed .sidebar-user {
  justify-content: center;
  padding: 10px 0;
}

.sidebar.collapsed .user-info {
  display: none;
}

.sidebar.collapsed .logout-btn {
  margin: 0;
}

/* ================================================================
   iPad Air 11寸竖屏全局适配 (769px - 1024px)
   ================================================================ */
@media (min-width: 769px) and (max-width: 1024px) {
  /* 全局调整 */
  .content {
    padding: 16px;
  }

  /* 侧边栏在 iPad 范围内默认折叠（由 JS 添加 .collapsed 类控制） */
  /* 注意：不直接设置 width，避免与 JS 控制冲突 */

  /* 折叠状态样式（与通用 .collapsed 样式配合） */
  .sidebar.collapsed .sidebar-title,
  .sidebar.collapsed .sidebar-nav .nav-item .nav-text,
  .sidebar.collapsed .user-info {
    display: none !important;
  }

  .sidebar.collapsed .sidebar-nav .nav-item {
    justify-content: center;
    padding: 11px 0;
  }

  .sidebar.collapsed .sidebar-nav .nav-icon {
    font-size: 18px;
  }

  .sidebar.collapsed .sidebar-logo {
    justify-content: center;
    padding: 8px 0 16px;
  }

  .sidebar.collapsed .sidebar-user {
    justify-content: center;
    padding: 10px 0;
  }

  /* 主内容区：根据侧边栏状态自动调整 */
  .main {
    margin-left: 68px;
    width: calc(100vw - 68px);
    transition: margin-left var(--nova-t), width var(--nova-t);
  }

  /* iPad 展开状态 */
  .sidebar:not(.collapsed) ~ .main {
    margin-left: 240px;
    width: calc(100vw - 240px);
  }

  /* 统计卡片网格：3列 */
  .stat-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  /* 卡片列表紧凑化 */
  .card-list-container {
    gap: 10px;
  }

  .card-list-container .card {
    padding: 14px 16px;
  }

  /* 表格容器横向滚动 */
  .table-wrap,
  .table-container {
    overflow-x: auto;
    min-width: 600px;
  }

  /* 弹窗优化 */
  .modal {
    max-width: 90vw;
  }

  .modal-lg {
    max-width: 95vw;
  }

  /* 商机卡片宽度压缩 */
  .card-list-container {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  /* 收款记录卡片优化 */
  .payment-record-card {
    padding: 14px 16px;
  }

  /* 采购支出卡片 */
  .expense-card {
    padding: 14px 16px;
  }

  /* 筛选栏紧凑化 */
  .filter-tabs,
  .unified-filter {
    gap: 6px;
  }

  .filter-tabs button,
  .unified-filter select,
  .unified-filter input {
    padding: 5px 10px;
    font-size: 13px;
  }

  /* 合同页面：沿用已有的优化 */
  .cch-body {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 6px 14px;
  }

  .contract-filter-bar {
    gap: 6px;
  }

  .contract-filter-bar select,
  .contract-filter-bar input {
    min-width: 110px;
    padding: 5px 8px;
    font-size: 12px;
  }
}

/* ================================================================
   桌面端：侧边栏展开时主内容区自适应
   ================================================================ */
@media (min-width: 1025px) {
  .main {
    margin-left: var(--nova-sidebar-w);
    width: calc(100vw - var(--nova-sidebar-w));
    transition: margin-left var(--nova-t), width var(--nova-t);
  }

  .sidebar.collapsed ~ .main {
    margin-left: 68px;
    width: calc(100vw - 68px);
  }
}