:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --faint: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --border: #e8eaef;
  --border-strong: #dde0e8;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.05);
  --shadow-md: 0 4px 12px rgba(16,24,40,.08), 0 2px 4px rgba(16,24,40,.04);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.18), 0 4px 12px rgba(15,23,42,.08);
  --radius: 14px;
  --radius-sm: 9px;
  --sidebar-bg: #0d1226;
  --sidebar-text: #8b93b0;
  --sidebar-active: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
code { font-family: 'SFMono-Regular', 'JetBrains Mono', Consolas, monospace; }
::selection { background: rgba(99,102,241,.18); }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #cbd2dc; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #aab3c0; }
::-webkit-scrollbar-track { background: transparent; }

/* ============ Layout ============ */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 150px; background: var(--sidebar-bg);
  background-image: radial-gradient(ellipse 120% 60% at 0% 0%, rgba(99,102,241,.22), transparent 60%);
  padding: 22px 0; display: flex; flex-direction: column; flex-shrink: 0;
  position: sticky; top: 0; height: 100vh;
}
.sidebar .logo {
  display: flex; align-items: center; justify-content: center; gap: 9px; padding: 0 12px 20px;
  border-bottom: 1px solid rgba(255,255,255,.07); margin-bottom: 14px;
  font-size: 18px; font-weight: 700; color: #fff; letter-spacing: .2px;
}
.logo-chip {
  width: 32px; height: 32px; border-radius: 9px; background: var(--grad);
  display: inline-flex; align-items: center; justify-content: center; color: #fff;
  box-shadow: 0 4px 12px rgba(99,102,241,.45); flex-shrink: 0;
}
.sidebar nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; }
.sidebar nav a {
  display: flex; align-items: center; justify-content: center; gap: 9px; padding: 10px 8px;
  color: var(--sidebar-text); text-decoration: none; font-size: 16px; font-weight: 500;
  border-radius: 9px; transition: background .15s, color .15s;
}
.sidebar nav a svg { flex-shrink: 0; opacity: .9; }
.sidebar nav a:hover { background: rgba(255,255,255,.06); color: #dde1f0; }
.sidebar nav a.active {
  background: var(--grad); color: #fff;
  box-shadow: 0 4px 14px rgba(99,102,241,.4);
}
.sidebar .user-info {
  margin: auto 12px 0; padding: 12px; border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px; background: rgba(255,255,255,.04);
  display: flex; align-items: center; gap: 10px;
}
.user-meta { min-width: 0; flex: 1; }
.user-meta strong { display: block; color: #e8eaf6; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#logout-link { color: var(--faint); font-size: 12.5px; white-space: nowrap; transition: color .15s; }
#logout-link:hover { color: #fda4af; }
.sidebar-version { margin: 10px 12px 0; text-align: center; font-size: 11px; color: var(--faint); letter-spacing: .3px; }
.main { flex: 1; padding: 30px 34px; overflow-y: auto; min-width: 0; }

/* ============ Login ============ */
.login-page {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  background:
    radial-gradient(ellipse 60% 50% at 15% 10%, rgba(99,102,241,.14), transparent 60%),
    radial-gradient(ellipse 50% 45% at 85% 20%, rgba(139,92,246,.12), transparent 60%),
    radial-gradient(ellipse 55% 50% at 50% 95%, rgba(56,189,248,.10), transparent 60%),
    var(--bg);
  padding: 20px;
}
.login-card {
  background: var(--card); padding: 40px 38px; border-radius: 18px;
  box-shadow: var(--shadow-lg); width: 400px; max-width: 92vw;
  border: 1px solid rgba(255,255,255,.6); animation: riseIn .45s cubic-bezier(.2,.8,.3,1);
}
@keyframes riseIn { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }
.login-card .login-logo { margin-bottom: 18px; }
.login-card .login-logo .logo-chip { width: 42px; height: 42px; border-radius: 12px; }
.login-card h1 { font-size: 21px; font-weight: 700; letter-spacing: -.3px; }
.login-card > p { color: var(--muted); margin: 4px 0 24px; font-size: 12.5px; }
.login-card .btn-primary { padding: 11px; font-size: 14.5px; }
.login-card .toggle-row { margin-top: 16px; text-align: center; font-size: 12.5px; }

/* ============ Cards ============ */
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); padding: 22px; margin-bottom: 18px;
}
.card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.card-header h2 { font-size: 17px; font-weight: 700; letter-spacing: -.2px; }
.card-header h3 { font-size: 14px; font-weight: 600; }

/* Page header — kept after .card-header so a page title nested inside a
   card-header (e.g. 渠道管理) still gets the page-title size, not the
   card-section size. */
.page-head { margin-bottom: 20px; }
.page-head h2 { font-size: 21px; font-weight: 700; letter-spacing: -.2px; }
.page-head p { color: var(--muted); font-size: 12.5px; margin-top: 3px; }

/* ============ Stats ============ */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); padding: 18px; display: flex; align-items: center; gap: 14px;
  transition: transform .18s, box-shadow .18s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-icon {
  width: 42px; height: 42px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--si-bg, rgba(99,102,241,.1)); color: var(--si-fg, var(--primary));
}
.stat-card .value { font-size: 23px; font-weight: 700; letter-spacing: -.4px; line-height: 1.2; }
.stat-card .label { font-size: 12.5px; color: var(--muted); margin-top: 1px; }

/* Dashboard usage charts */
.usage-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 14px; margin-bottom: 18px; }
@media (max-width: 1100px) { .usage-grid { grid-template-columns: 1fr; } }

/* Wallet */
.redeem-card { display: flex; align-items: center; gap: 14px; padding: 16px 18px; margin-bottom: 16px; }
.redeem-icon {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(99,102,241,.1); color: var(--primary);
}
.redeem-copy { flex: 1; min-width: 180px; }
.redeem-copy h3 { font-size: 14.5px; font-weight: 700; }
.redeem-copy p { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.redeem-actions { display: flex; align-items: center; gap: 10px; flex: 1.25; min-width: 320px; }
.redeem-actions input {
  flex: 1; min-width: 0; padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: 10px;
  background: #fbfbfc; color: var(--text); font-family: 'SFMono-Regular', Consolas, monospace; font-size: 13px; letter-spacing: .4px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.redeem-actions input:hover { border-color: #c8cdd8; }
.redeem-actions input:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3.5px rgba(99,102,241,.14); }
.redeem-actions .btn-primary { white-space: nowrap; }
@media (max-width: 860px) {
  .redeem-card { flex-wrap: wrap; }
  .redeem-actions { flex-basis: 100%; min-width: 0; }
}

/* ============ Forms ============ */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 5px; color: var(--text-2); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  font-size: 14px; background: #fbfbfc; color: var(--text); transition: border-color .15s, box-shadow .15s, background .15s;
  font-family: inherit;
}
.form-group input:hover, .form-group select:hover, .form-group textarea:hover { border-color: #c8cdd8; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3.5px rgba(99,102,241,.14);
}
.form-group input:disabled { background: #f1f2f5; color: var(--faint); cursor: not-allowed; }
.form-group textarea { font-family: 'SFMono-Regular', Consolas, monospace; font-size: 12.5px; min-height: 84px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }

/* ============ Tables ============ */
.table-wrap { overflow-x: auto; margin: 0 -22px; padding: 0 22px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 11px 14px; text-align: center; border-bottom: 1px solid #f0f1f5; }
th { font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--faint); border-bottom: 1px solid var(--border); }
tbody tr { transition: background .12s; }
tbody tr:hover { background: #f8f9fc; }
tbody tr:last-child td { border-bottom: none; }
td strong { font-weight: 600; }

/* 渠道表:操作列固定容纳 5 个按钮,宽度不足时表格横向滚动而不是换行 */
.providers-table { min-width: 1180px; }
.providers-table th, .providers-table td { padding-left: 10px; padding-right: 10px; }
.providers-table th:last-child, .providers-table td:last-child {
  width: 274px; min-width: 274px; white-space: nowrap;
}
.providers-table td:last-child { text-align: right; }
.providers-table td:last-child .btn-sm { margin: 1px 0 1px 6px; white-space: nowrap; }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 2.5px 10px;
  border-radius: 20px; font-size: 11px; font-weight: 600; letter-spacing: .2px; white-space: nowrap;
}
.badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .8; }
.badge-green { background: #ecfdf5; color: #047857; }
.badge-red { background: #fef2f2; color: #b91c1c; }
.badge-yellow { background: #fffbeb; color: #b45309; }
.badge-blue { background: #eff6ff; color: #1d4ed8; }
.badge-gray { background: #f3f4f6; color: #4b5563; }
.badge-violet { background: #f5f3ff; color: #6d28d9; }

/* ============ Buttons ============ */
button {
  cursor: pointer; padding: 8px 16px; border: none; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; font-family: inherit;
  transition: transform .12s, box-shadow .15s, background .15s, opacity .15s;
}
button:active { transform: scale(.97); }
button:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 2px 8px rgba(99,102,241,.35); }
.btn-primary:hover { box-shadow: 0 4px 14px rgba(99,102,241,.45); filter: brightness(1.05); }
.btn-danger { background: #fef2f2; color: var(--danger); }
.btn-danger:hover { background: #fee2e2; }
.btn-outline { background: var(--card); border: 1px solid var(--border-strong); color: var(--text-2); box-shadow: var(--shadow-sm); }
.btn-outline:hover { border-color: #c3c9d6; background: #fafbfc; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; border-radius: 7px; }
td .btn-sm { margin: 1px 2px; }

/* ============ Modal ============ */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.45);
  backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  animation: fadeIn .18s ease; padding: 20px;
}
@keyframes fadeIn { from { opacity: 0; } }
.modal {
  background: var(--card); border-radius: 16px; box-shadow: var(--shadow-lg);
  width: 540px; max-width: 94vw; max-height: 86vh; overflow-y: auto; padding: 26px;
  animation: modalIn .28s cubic-bezier(.2,.9,.3,1.1);
}
@keyframes modalIn { from { transform: translateY(18px) scale(.97); opacity: 0; } to { transform: none; opacity: 1; } }
.modal h2 { font-size: 17px; font-weight: 700; margin-bottom: 18px; letter-spacing: -.2px; }

/* ============ Toast ============ */
.toast-container { position: fixed; top: 22px; right: 22px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 12px 18px; border-radius: 11px; font-size: 14px; font-weight: 500;
  background: #1e293b; color: #f1f5f9; box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--primary); animation: toastIn .32s cubic-bezier(.2,.9,.3,1.15);
  max-width: 360px;
}
.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }
.toast-info { border-left-color: var(--primary); }
@keyframes toastIn { from { transform: translateX(110%); opacity: 0; } to { transform: none; opacity: 1; } }

/* ============ Code block ============ */
.code-block {
  background: #0f172a; color: #dbe4f5; padding: 15px 17px; border-radius: 11px;
  font-family: 'SFMono-Regular', 'JetBrains Mono', Consolas, monospace; font-size: 12.5px;
  overflow-x: auto; white-space: pre-wrap; margin: 8px 0; line-height: 1.65;
  border: 1px solid rgba(255,255,255,.06);
}

/* ============ Loading / Empty ============ */
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2.5px solid #e2e5ee; border-top-color: var(--primary);
  border-radius: 50%; animation: spin .65s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.empty { text-align: center; padding: 44px 20px; color: var(--muted); }
.empty p { font-size: 14px; margin-top: 10px; }

/* Inline select in toolbars */
.inline-select {
  padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: 8px;
  font-size: 14px; background: #fbfbfc; color: var(--text); font-family: inherit; width: 100%;
}
.inline-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.14); }

/* ============ Model health cells / Model test ============ */
.mcell {
  display: inline-block; width: 14px; height: 14px; border-radius: 4px;
  margin: 0 5px 2px 0; vertical-align: middle; cursor: default;
  transition: transform .12s;
}
.mcell:hover { transform: scale(1.25); }
.mcell-green { background: var(--success); box-shadow: 0 0 0 1px rgba(16,185,129,.25); }
.mcell-yellow { background: var(--warning); box-shadow: 0 0 0 1px rgba(245,158,11,.25); }
.mcell-red { background: var(--danger); box-shadow: 0 0 0 1px rgba(239,68,68,.25); }
.mcell-gray { background: #cbd2dc; }
.mt-cell { cursor: pointer; }

/* 模型测试一维列表:每渠道一行,模型为统一尺寸的方框 */
.mt-rows { display: flex; flex-direction: column; gap: 10px; }
.mt-row { display: flex; align-items: flex-start; gap: 14px; }
.mt-row-name {
  width: 220px; flex-shrink: 0; padding-top: 5px;
  display: flex; align-items: center; gap: 8px;
}
.mt-chan {
  flex: 1; min-width: 0; text-align: center;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.mt-row-name .badge { flex-shrink: 0; }
.mt-row-models { display: flex; flex-wrap: wrap; gap: 8px; }
.mbox {
  display: inline-flex; align-items: center; justify-content: center;
  width: 128px; height: 30px; padding: 0 6px; box-sizing: border-box;
  border-radius: 7px; font-size: 12px; color: #fff; text-align: center;
  overflow: hidden; white-space: nowrap;
  transition: transform .12s, box-shadow .12s;
}
.mbox:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.mbox-green { background: var(--success); box-shadow: 0 0 0 1px rgba(16,185,129,.25); }
.mbox-red { background: var(--danger); box-shadow: 0 0 0 1px rgba(239,68,68,.25); }
.mbox-gray { background: #cbd2dc; color: #4b5563; }
.mbox-testing { background: var(--primary); animation: mtPulse .8s ease-in-out infinite; }
@keyframes mtPulse { 50% { opacity: .3; } }
.legend {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  color: var(--muted); font-size: 12.5px; margin-bottom: 14px;
}
.legend .mcell { margin: 0 6px 0 0; width: 12px; height: 12px; }


/* ============ Responsive ============ */
@media (max-width: 860px) {
  .sidebar { width: 64px; padding: 16px 0; }
  .sidebar .logo { padding: 0 0 16px; justify-content: center; }
  .sidebar .logo span.logo-text { display: none; }
  .sidebar nav a { justify-content: center; padding: 11px; }
  .sidebar nav a span { display: none; }
  .sidebar .user-info { display: none; }
  .main { padding: 18px 14px; }
  .form-row { grid-template-columns: 1fr; }
}