/* ============================================================
   iOS Glassmorphism UI - API 计费系统样式表
   风格：iOS毛玻璃 / 莫兰迪低饱和配色 / 液态交互
   ============================================================ */

/* ── CSS变量 ── */
:root {
  --morandi-blue: #6C8EBF; --morandi-blue-light: #8AA9D6; --morandi-blue-dark: #4A6B99;
  --morandi-purple: #9B8EC2; --morandi-green: #8FB5A0; --morandi-mint: #A8C9B8;
  --morandi-rose: #D4A9A9; --morandi-gray: #B8BCC2; --morandi-warm: #D4C9B8;
  --glass-bg: rgba(255,255,255,0.72); --glass-bg-strong: rgba(255,255,255,0.88);
  --glass-bg-light: rgba(255,255,255,0.50); --glass-border: rgba(255,255,255,0.35);
  --glass-shadow: 0 8px 32px rgba(31,38,135,0.06);
  --glass-shadow-hover: 0 12px 40px rgba(31,38,135,0.10);
  --glass-blur: blur(18px); --glass-blur-heavy: blur(30px);
  --radius-xs: 6px; --radius-sm: 10px; --radius-md: 14px;
  --radius-lg: 18px; --radius-xl: 22px; --radius-2xl: 26px; --radius-full: 9999px;
  --space-xs: 4px; --space-sm: 8px; --space-md: 16px; --space-lg: 24px; --space-xl: 32px;
  --font-sans: -apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono: "SF Mono",Consolas,monospace;
  --font-xs: 11px; --font-sm: 12px; --font-base: 14px; --font-md: 16px; --font-lg: 18px; --font-xl: 22px;
  --text-primary: #1C1F2B; --text-secondary: #5C5F6B; --text-tertiary: #8E919E; --text-inverse: #FFFFFF;
  --bg-body: linear-gradient(135deg, #e8edf5 0%, #f0f4fa 50%, #e8ecf5 100%);
  --bg-surface: #FFFFFF; --bg-hover: rgba(108,142,191,0.08); --bg-active: rgba(108,142,191,0.14);
  --border-color: rgba(180,188,200,0.30); --border-focus: #6C8EBF;
  --color-success: #6BBF8E; --color-warning: #D4B872; --color-danger: #C48080; --color-info: #8AA9D6;
}

/* ── 暗黑模式 ── */
[data-theme="dark"], .dark-mode {
  --glass-bg: rgba(30,32,42,0.78); --glass-bg-strong: rgba(30,32,42,0.90);
  --glass-bg-light: rgba(30,32,42,0.55); --glass-border: rgba(255,255,255,0.08);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.20);
  --glass-shadow-hover: 0 12px 40px rgba(0,0,0,0.30);
  --text-primary: #E8E9ED; --text-secondary: #9A9CA8; --text-tertiary: #6A6C78;
  --bg-body: linear-gradient(135deg, #1A1C28 0%, #1E2030 50%, #181A26 100%);
  --bg-hover: rgba(108,142,191,0.12); --bg-active: rgba(108,142,191,0.20);
  --border-color: rgba(255,255,255,0.08);
  --color-success: #5AAB7E; --color-warning: #BCA062; --color-danger: #B06E6E;
}

/* ── 基础重置 ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans); font-size: var(--font-base); line-height: 1.6;
  color: var(--text-primary); background: var(--bg-body);
  min-height: 100vh; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: var(--morandi-blue); text-decoration: none; transition: color 0.3s ease; }
a:hover { color: var(--morandi-blue-dark); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ── 毛玻璃通用容器 ── */
.glass-card, .card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow); transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.glass-card:hover, .card:hover {
  box-shadow: var(--glass-shadow-hover); transform: translateY(-2px);
}

/* ── 面板容器 ── */
.panel { padding: var(--space-lg); }
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}
.panel-title { font-size: var(--font-lg); font-weight: 600; color: var(--text-primary); }
.panel-body { padding: var(--space-lg); }

/* ── 侧边栏 ── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: 260px; z-index: 100;
  background: var(--glass-bg-strong); backdrop-filter: var(--glass-blur-heavy);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column; transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.sidebar-logo {
  padding: var(--space-lg); display: flex; align-items: center; gap: 12px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-logo img { width: 36px; height: 36px; border-radius: var(--radius-sm); }
.sidebar-logo span { font-size: var(--font-md); font-weight: 700; color: var(--text-primary); }
.sidebar-nav { flex: 1; padding: var(--space-md); overflow-y: auto; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px;
  border-radius: var(--radius-md); color: var(--text-secondary); font-size: var(--font-base);
  font-weight: 500; transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1); margin-bottom: 2px;
}
.sidebar-nav a:hover { background: var(--bg-hover); color: var(--text-primary); transform: translateX(4px); }
.sidebar-nav a.active {
  background: var(--bg-active); color: var(--morandi-blue); font-weight: 600;
}
.sidebar-nav a i, .sidebar-nav a svg { width: 20px; height: 20px; flex-shrink: 0; opacity: 0.8; }
.sidebar-footer {
  padding: var(--space-md); border-top: 1px solid var(--border-color);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-footer .avatar { width: 32px; height: 32px; border-radius: var(--radius-full); background: var(--morandi-blue); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 600; font-size: 13px; }

/* ── 顶栏 ── */
.topbar {
  position: fixed; top: 0; left: 260px; right: 0; height: 64px; z-index: 99;
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--space-lg); transition: all 0.4s ease;
}
.topbar-left { display: flex; align-items: center; gap: var(--space-md); }
.topbar-right { display: flex; align-items: center; gap: var(--space-sm); }
.topbar-btn {
  width: 40px; height: 40px; border-radius: var(--radius-full); border: none;
  background: var(--glass-bg-light); backdrop-filter: var(--glass-blur-light);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
  font-size: 18px;
}
.topbar-btn:hover { background: var(--bg-hover); color: var(--text-primary); transform: scale(0.92); }

/* ── 主内容区 ── */
.main-content {
  margin-left: 260px; margin-top: 64px; padding: var(--space-lg);
  min-height: calc(100vh - 64px); transition: all 0.4s ease;
}

/* ── 按钮系统 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 22px; border-radius: var(--radius-md); font-size: var(--font-base);
  font-weight: 500; font-family: inherit; border: 1.5px solid transparent;
  cursor: pointer; transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  text-decoration: none; white-space: nowrap; user-select: none;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0; background: rgba(255,255,255,0.1);
  opacity: 0; transition: opacity 0.3s ease;
}
.btn:active { transform: scale(0.94); }
.btn:hover::after { opacity: 1; }
.btn:disabled, .btn.disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

.btn-primary {
  background: linear-gradient(135deg, #6C8EBF, #8AA9D6); color: #fff;
  box-shadow: 0 4px 14px rgba(108,142,191,0.30);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(108,142,191,0.40); }
.btn-success {
  background: linear-gradient(135deg, #6BBF8E, #8FB5A0); color: #fff;
  box-shadow: 0 4px 14px rgba(107,191,142,0.30);
}
.btn-danger {
  background: linear-gradient(135deg, #C48080, #D4A9A9); color: #fff;
  box-shadow: 0 4px 14px rgba(196,128,128,0.30);
}
.btn-warning {
  background: linear-gradient(135deg, #D4B872, #D4C9B8); color: #fff;
  box-shadow: 0 4px 14px rgba(212,184,114,0.30);
}
.btn-outline {
  background: transparent; border-color: var(--border-color); color: var(--text-primary);
}
.btn-outline:hover { background: var(--bg-hover); border-color: var(--morandi-blue); color: var(--morandi-blue); }
.btn-ghost {
  background: transparent; border-color: transparent; color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm { padding: 6px 14px; font-size: var(--font-sm); border-radius: var(--radius-sm); }
.btn-lg { padding: 14px 30px; font-size: var(--font-md); border-radius: var(--radius-lg); }
.btn-block { width: 100%; justify-content: center; }
.btn-icon { width: 40px; height: 40px; padding: 0; border-radius: var(--radius-full); }

/* ── 表单元素 ── */
.form-group { margin-bottom: var(--space-md); }
.form-label {
  display: block; font-size: var(--font-sm); font-weight: 500; color: var(--text-secondary);
  margin-bottom: 6px; letter-spacing: 0.3px;
}
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 11px 16px; border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color); font-size: var(--font-base);
  font-family: inherit; background: var(--glass-bg-light);
  backdrop-filter: var(--glass-blur-light); color: var(--text-primary);
  transition: all 0.3s ease; outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus); box-shadow: 0 0 0 3px rgba(108,142,191,0.12);
}
.form-input::placeholder { color: var(--text-tertiary); }
.form-textarea { min-height: 100px; resize: vertical; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235C5F6B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.form-hint { font-size: var(--font-xs); color: var(--text-tertiary); margin-top: 4px; }
.form-error { font-size: var(--font-xs); color: var(--color-danger); margin-top: 4px; }

/* ── 表格系统 ── */
.table-container {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg); border: 1px solid var(--glass-border);
  overflow: hidden; box-shadow: var(--glass-shadow);
}
.table-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color); flex-wrap: wrap; gap: 12px;
}
.table-toolbar-left, .table-toolbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; }
thead th {
  padding: 12px 16px; text-align: left; font-size: var(--font-sm);
  font-weight: 600; color: var(--text-secondary); text-transform: uppercase;
  letter-spacing: 0.5px; background: var(--glass-bg-light);
  border-bottom: 1px solid var(--border-color);
}
tbody td {
  padding: 12px 16px; font-size: var(--font-base); color: var(--text-primary);
  border-bottom: 1px solid var(--border-color); vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.3s ease; }
tbody tr:hover { background: var(--bg-hover); }
.table-empty td { text-align: center; padding: 48px 16px; color: var(--text-tertiary); font-size: var(--font-md); }

/* ── 徽章/标签 ── */
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px;
  border-radius: var(--radius-full); font-size: var(--font-xs); font-weight: 500;
  line-height: 1.4; letter-spacing: 0.3px;
}
.badge-success { background: var(--color-success-bg, rgba(107,191,142,0.12)); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg, rgba(212,184,114,0.12)); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg, rgba(196,128,128,0.12)); color: var(--color-danger); }
.badge-info { background: var(--color-info-bg, rgba(138,169,214,0.12)); color: var(--color-info); }
.badge-default { background: var(--bg-hover); color: var(--text-secondary); }

/* ── 选项卡 ── */
.tabs {
  display: flex; gap: 4px; background: var(--glass-bg-light);
  padding: 4px; border-radius: var(--radius-md); overflow-x: auto;
}
.tab {
  padding: 8px 18px; border-radius: var(--radius-sm); border: none;
  background: transparent; font-size: var(--font-base); font-weight: 500;
  font-family: inherit; color: var(--text-secondary); cursor: pointer;
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1); white-space: nowrap;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
  background: var(--glass-bg); color: var(--morandi-blue);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* ── 分页 ── */
.pagination {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: var(--space-md); flex-wrap: wrap;
}
.page-item {
  min-width: 36px; height: 36px; display: flex; align-items: center;
  justify-content: center; border-radius: var(--radius-sm); font-size: var(--font-sm);
  font-weight: 500; color: var(--text-secondary); background: transparent;
  border: 1px solid transparent; cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.page-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.page-item.active {
  background: var(--morandi-blue); color: #fff; border-color: var(--morandi-blue);
}
.page-item.disabled { opacity: 0.4; cursor: not-allowed; }
.page-info { font-size: var(--font-sm); color: var(--text-tertiary); margin: 0 8px; }

/* ── 弹窗/模态框 ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000; display: flex;
  align-items: center; justify-content: center;
  background: rgba(0,0,0,0.30); backdrop-filter: blur(6px);
  animation: modalOverlayIn 0.3s ease;
}
@keyframes modalOverlayIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--glass-bg-strong); backdrop-filter: var(--glass-blur-heavy);
  border-radius: var(--radius-2xl); border: 1px solid var(--glass-border);
  box-shadow: 0 24px 80px rgba(0,0,0,0.15); width: 90%; max-width: 520px;
  max-height: 90vh; overflow-y: auto; animation: modalIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.85) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-lg) var(--space-lg) 0;
}
.modal-title { font-size: var(--font-lg); font-weight: 600; color: var(--text-primary); }
.modal-close {
  width: 32px; height: 32px; border-radius: var(--radius-full); border: none;
  background: var(--glass-bg-light); cursor: pointer; display: flex;
  align-items: center; justify-content: center; color: var(--text-secondary);
  transition: all 0.3s ease; font-size: 18px;
}
.modal-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-body { padding: var(--space-lg); }
.modal-footer {
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
  padding: 0 var(--space-lg) var(--space-lg);
}

/* ── 警告/提示条 ── */
.alert {
  padding: 12px 16px; border-radius: var(--radius-md); font-size: var(--font-sm);
  display: flex; align-items: center; gap: 10px; line-height: 1.5;
  margin-bottom: var(--space-md); animation: alertIn 0.3s ease;
}
@keyframes alertIn { from { opacity: 0; transform: translateY(-8px); } }
.alert-success { background: var(--color-success-bg, rgba(107,191,142,0.10)); border: 1px solid rgba(107,191,142,0.20); color: var(--color-success); }
.alert-warning { background: var(--color-warning-bg, rgba(212,184,114,0.10)); border: 1px solid rgba(212,184,114,0.20); color: #A08840; }
.alert-danger { background: var(--color-danger-bg, rgba(196,128,128,0.10)); border: 1px solid rgba(196,128,128,0.20); color: var(--color-danger); }
.alert-info { background: var(--color-info-bg, rgba(138,169,214,0.10)); border: 1px solid rgba(138,169,214,0.20); color: var(--morandi-blue); }

/* ── 统计卡片 ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-md); margin-bottom: var(--space-lg); }
.stat-card {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: var(--space-lg); box-shadow: var(--glass-shadow);
  transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.stat-card:hover { box-shadow: var(--glass-shadow-hover); transform: translateY(-3px); }
.stat-label { font-size: var(--font-sm); color: var(--text-tertiary); margin-bottom: 6px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.stat-change { font-size: var(--font-xs); color: var(--color-success); margin-top: 4px; display: flex; align-items: center; gap: 4px; }

/* ── 加载状态 ── */
.loading-bar {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 9999;
  background: linear-gradient(90deg, #6C8EBF, #8AA9D6, #9B8EC2, #6C8EBF);
  background-size: 200% 100%; animation: liquidBar 1.5s ease infinite;
  border-radius: 0 2px 2px 0; transition: width 0.4s ease;
}
@keyframes liquidBar {
  0% { background-position: 200% 0; } 100% { background-position: -200% 0; }
}
.spinner { width: 24px; height: 24px; border: 3px solid var(--border-color); border-top-color: var(--morandi-blue); border-radius: 50%; animation: spin 0.8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast 通知 ── */
.toast-container { position: fixed; top: 80px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 14px 20px; border-radius: var(--radius-md); min-width: 280px; max-width: 400px;
  background: var(--glass-bg-strong); backdrop-filter: var(--glass-blur-heavy);
  border: 1px solid var(--glass-border); box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  display: flex; align-items: center; gap: 10px; font-size: var(--font-base);
  animation: toastIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
.toast.toast-out { animation: toastOut 0.3s ease forwards; }
@keyframes toastOut { to { opacity: 0; transform: translateX(40px); } }
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-info); }

/* ── 搜索框 ── */
.search-box {
  position: relative; display: inline-flex; align-items: center;
}
.search-box input {
  padding: 9px 16px 9px 38px; border-radius: var(--radius-full);
  border: 1.5px solid var(--border-color); background: var(--glass-bg-light);
  font-size: var(--font-base); font-family: inherit; color: var(--text-primary);
  outline: none; width: 220px; transition: all 0.3s ease;
}
.search-box input:focus { width: 300px; border-color: var(--border-focus); }
.search-box .search-icon {
  position: absolute; left: 12px; color: var(--text-tertiary); pointer-events: none;
  display: flex; align-items: center; font-size: 16px;
}

/* ── 空状态 ── */
.empty-state { text-align: center; padding: var(--space-2xl) var(--space-lg); }
.empty-state-icon { font-size: 56px; color: var(--text-tertiary); margin-bottom: var(--space-md); opacity: 0.5; }
.empty-state-title { font-size: var(--font-lg); color: var(--text-primary); margin-bottom: 8px; }
.empty-state-desc { font-size: var(--font-base); color: var(--text-tertiary); margin-bottom: var(--space-lg); }

/* ── 进度条 ── */
.progress {
  height: 6px; border-radius: var(--radius-full); background: var(--glass-bg-light);
  overflow: hidden;
}
.progress-bar {
  height: 100%; border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--morandi-blue), var(--morandi-blue-light));
  transition: width 0.6s cubic-bezier(0.34,1.56,0.64,1);
  position: relative; overflow: hidden;
}
.progress-bar::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }

/* ── 用户头像 ── */
.avatar {
  width: 40px; height: 40px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 16px; color: #fff; flex-shrink: 0;
}
.avatar-sm { width: 32px; height: 32px; font-size: 13px; }
.avatar-lg { width: 56px; height: 56px; font-size: 22px; }

/* ── 工具类 ── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-info { color: var(--color-info); }
.text-muted { color: var(--text-tertiary); }
.font-mono { font-family: var(--font-mono); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── 登录页专用 ── */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg-body); padding: 20px; position: relative; overflow: hidden;
}
.login-page::before {
  content: ''; position: absolute; width: 300px; height: 300px;
  border-radius: 50%; background: radial-gradient(circle, rgba(108,142,191,0.15), transparent);
  top: -80px; right: -80px;
}
.login-page::after {
  content: ''; position: absolute; width: 400px; height: 400px;
  border-radius: 50%; background: radial-gradient(circle, rgba(138,169,214,0.12), transparent);
  bottom: -120px; left: -120px;
}
.login-card {
  width: 100%; max-width: 420px; position: relative; z-index: 1;
}
.login-card-inner {
  background: var(--glass-bg); backdrop-filter: var(--glass-blur-heavy);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
  border: 1px solid var(--glass-border); border-radius: var(--radius-2xl);
  padding: 40px; box-shadow: 0 16px 60px rgba(31,38,135,0.08);
  animation: cardFloat 0.6s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes cardFloat { from { opacity: 0; transform: translateY(20px) scale(0.95); } }

/* ── 响应式 ── */
@media (max-width: 1024px) {
  .sidebar { width: 220px; }
  .topbar { left: 220px; }
  .main-content { margin-left: 220px; }
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .topbar { left: 0; }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .mobile-menu-btn { display: flex !important; }
  .login-card-inner { padding: 28px 24px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .table-container { overflow-x: auto; }
  .modal { width: 95%; }
}