/* =============================================================
   无限轮回 · 玻璃拟态 / 深空主题
   - 深色主题, backdrop-filter 玻璃效果
   - 青蓝渐变强调色 + 紫罗兰二级色 + 霓虹高光
   - 所有 class 名跟原 admin.html 100% 兼容, 只换样式不动结构
   ============================================================= */

/* ---------- Design Tokens ---------- */
:root {
    --bg-base: #07090f;
    --bg-deep: #0a0e1a;
    --bg-card: rgba(22, 32, 48, 0.55);
    --bg-card-strong: rgba(28, 38, 56, 0.85);
    --bg-elev: rgba(40, 52, 75, 0.6);
    --border: rgba(140, 180, 255, 0.12);
    --border-strong: rgba(140, 180, 255, 0.28);
    --text: #e6ecf3;
    --text-dim: #8a9bb0;
    --text-mute: #5d6b7f;
    --accent: #00d9ff;
    --accent2: #b794f6;
    --accent-grad: linear-gradient(135deg, #00d9ff 0%, #b794f6 100%);
    --success: #4ade80;
    --danger: #f87171;
    --warning: #fbbf24;
    --info: #38bdf8;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 24px rgba(0, 217, 255, 0.18);
    --blur: blur(16px) saturate(140%);
    --tx: 0.18s cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-base);
    color: var(--text);
    font-size: 14px;
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
body::before {
    content: '';
    position: fixed; inset: 0;
    background:
        radial-gradient(1100px circle at 12% -10%, rgba(0, 217, 255, 0.10), transparent 50%),
        radial-gradient(900px circle at 90% 110%, rgba(183, 148, 246, 0.10), transparent 50%),
        linear-gradient(180deg, var(--bg-base) 0%, var(--bg-deep) 100%);
    z-index: -2; pointer-events: none;
}
body::after {
    content: '';
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(140,180,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(140,180,255,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1; pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 60%, transparent 100%);
}

a { color: var(--accent); text-decoration: none; transition: color var(--tx); }
a:hover { color: #4ee5ff; text-decoration: none; text-shadow: 0 0 8px rgba(0,217,255,0.5); }

::selection { background: rgba(0, 217, 255, 0.3); color: #fff; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(140,180,255,0.18); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(140,180,255,0.32); }

/* ---------- Login Page ---------- */
.login-wrapper {
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh; padding: 20px;
    background: none;
}
.login-box {
    background: var(--bg-card);
    backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 44px 38px;
    width: 420px;
    box-shadow: var(--shadow), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}
.login-box::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(0,217,255,0.06) 0%, transparent 60%);
    pointer-events: none;
}
.login-box h1 {
    text-align: center; margin-bottom: 8px; font-size: 26px; font-weight: 700;
    background: var(--accent-grad); -webkit-background-clip: text; background-clip: text;
    color: transparent; letter-spacing: 0.5px;
}
.login-box .subtitle {
    text-align: center; color: var(--text-mute);
    margin-bottom: 28px; font-size: 12px; letter-spacing: 1px; text-transform: uppercase;
}
.login-box .role-tabs {
    display: flex; gap: 6px; margin-bottom: 24px;
    background: rgba(255,255,255,0.04); padding: 5px; border-radius: 10px;
    border: 1px solid var(--border);
}
.login-box .role-tabs button {
    flex: 1; padding: 9px; border: none; border-radius: 7px;
    background: transparent; cursor: pointer; font-size: 13px; font-weight: 500;
    color: var(--text-dim); transition: all var(--tx);
}
.login-box .role-tabs button.active {
    background: var(--accent-grad); color: #0a0e1a; font-weight: 600;
    box-shadow: 0 4px 12px rgba(0,217,255,0.3);
}
.login-box .role-tabs button:hover:not(.active) { color: var(--text); background: rgba(255,255,255,0.04); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block; margin-bottom: 8px;
    font-weight: 500; color: var(--text-dim); font-size: 12px;
    letter-spacing: 0.5px; text-transform: uppercase;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 11px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text); font-size: 14px;
    transition: all var(--tx);
    font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 217, 255, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.15);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-mute); }
select option { background: #1a2238; color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 9px 18px; border: 1px solid var(--border-strong);
    background: rgba(255,255,255,0.05); color: var(--text);
    border-radius: var(--radius); font-size: 13px; font-weight: 500;
    cursor: pointer; transition: all var(--tx); font-family: inherit;
}
.btn:hover { background: rgba(255,255,255,0.10); border-color: var(--accent); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
    background: var(--accent-grad); color: #0a0e1a; border-color: transparent;
    font-weight: 600; box-shadow: 0 4px 14px rgba(0,217,255,0.3);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(0,217,255,0.45); filter: brightness(1.1); }
.btn-success { background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%); color: #06141e; border-color: transparent; font-weight: 600; box-shadow: 0 4px 14px rgba(74,222,128,0.3); }
.btn-success:hover { box-shadow: 0 6px 20px rgba(74,222,128,0.45); filter: brightness(1.1); }
.btn-danger { background: linear-gradient(135deg, #f87171 0%, #ef4444 100%); color: #fff; border-color: transparent; font-weight: 600; box-shadow: 0 4px 14px rgba(248,113,113,0.3); }
.btn-danger:hover { box-shadow: 0 6px 20px rgba(248,113,113,0.45); filter: brightness(1.1); }
.btn-warning { background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%); color: #1a0c00; border-color: transparent; font-weight: 600; box-shadow: 0 4px 14px rgba(251,191,36,0.3); }
.btn-warning:hover { box-shadow: 0 6px 20px rgba(251,191,36,0.45); filter: brightness(1.1); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-block { width: 100%; }
.btn + .btn { margin-left: 6px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

/* ---------- Dashboard Layout ---------- */
.dashboard { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    background: linear-gradient(180deg, rgba(15,22,40,0.85) 0%, rgba(10,14,26,0.85) 100%);
    backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border-right: 1px solid var(--border);
    color: var(--text);
    position: fixed; top: 0; left: 0; height: 100vh;
    z-index: 100;
    display: flex; flex-direction: column;
}
.sidebar .logo {
    padding: 22px 16px; font-size: 19px; font-weight: 700;
    text-align: center;
    background: var(--accent-grad); -webkit-background-clip: text; background-clip: text;
    color: transparent;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.5px;
}
.sidebar .logo small {
    display: block; font-size: 10px; color: var(--text-mute);
    font-weight: 500; margin-top: 4px; letter-spacing: 2px;
    -webkit-text-fill-color: var(--text-mute);
}
.sidebar nav { padding: 12px 0; flex: 1; overflow-y: auto; min-height: 0; }
.sidebar nav a {
    display: block; padding: 11px 22px;
    color: var(--text-dim); font-size: 13.5px;
    transition: all var(--tx);
    border-left: 3px solid transparent;
    position: relative;
}
.sidebar nav a:hover {
    background: rgba(0,217,255,0.06); color: var(--text);
    text-decoration: none; border-left-color: rgba(0,217,255,0.3);
}
.sidebar nav a.active {
    background: linear-gradient(90deg, rgba(0,217,255,0.18) 0%, rgba(0,217,255,0.02) 100%);
    color: var(--accent); border-left-color: var(--accent);
    font-weight: 600;
}
.sidebar nav a.active::after {
    content: ''; position: absolute; right: 12px; top: 50%;
    transform: translateY(-50%); width: 6px; height: 6px;
    border-radius: 50%; background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}
.sidebar .sidebar-footer { flex-shrink: 0; padding: 16px; border-top: 1px solid var(--border); background: rgba(7,9,15,0.4); }
.sidebar .sidebar-footer .user-info { font-size: 12px; color: var(--text-dim); margin-bottom: 10px; }
.sidebar .sidebar-footer .btn-logout {
    width: 100%; padding: 9px;
    background: rgba(248,113,113,0.12); color: var(--danger);
    border: 1px solid rgba(248,113,113,0.3);
    border-radius: var(--radius); cursor: pointer; font-size: 13px;
    transition: all var(--tx);
}
.sidebar .sidebar-footer .btn-logout:hover { background: rgba(248,113,113,0.22); }

.main-content { flex: 1; margin-left: 240px; padding: 28px; }
.page-header { margin-bottom: 24px; }
.page-header h2 { font-size: 22px; color: var(--text); font-weight: 600; }
.page-header .breadcrumb { font-size: 12px; color: var(--text-mute); margin-top: 4px; }

/* ---------- Stats Cards ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
    background: var(--bg-card); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: all var(--tx);
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--accent-grad); opacity: 0; transition: opacity var(--tx);
}
.stat-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.stat-card:hover::before { opacity: 1; }
.stat-card .stat-label { font-size: 12px; color: var(--text-dim); margin-bottom: 10px; letter-spacing: 0.5px; text-transform: uppercase; }
.stat-card .stat-value {
    font-size: 30px; font-weight: 700;
    background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-card .stat-value.money { background: linear-gradient(135deg, #fbbf24 0%, #f87171 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Cards / Panels ---------- */
.card {
    background: var(--bg-card); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 20px; overflow: hidden;
}
.card-header { padding: 16px 22px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.card-header h3 { font-size: 15px; color: var(--text); font-weight: 600; }
.card-body { padding: 20px 22px; }

/* ---------- Tables ---------- */
.table-toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.table-toolbar input, .table-toolbar select {
    padding: 8px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text);
    font-size: 13px; transition: all var(--tx);
}
.table-toolbar input { width: 220px; }
.table-toolbar input:focus, .table-toolbar select:focus { outline: none; border-color: var(--accent); }

table { width: 100%; border-collapse: collapse; }
table thead { background: rgba(0,217,255,0.04); }
table th { padding: 12px 16px; text-align: left; font-weight: 600; color: var(--text-dim); font-size: 12px; border-bottom: 1px solid var(--border); white-space: nowrap; text-transform: uppercase; letter-spacing: 0.5px; }
table td { padding: 13px 16px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--text); }
table tbody tr { transition: background var(--tx); }
table tbody tr:hover { background: rgba(0,217,255,0.05); }
table tbody tr:last-child td { border-bottom: none; }
.table-actions { white-space: nowrap; }
.table-actions .btn { margin: 2px; }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; flex-wrap: wrap; gap: 12px; }
.pagination .page-info { font-size: 13px; color: var(--text-dim); }
.pagination .page-btns { display: flex; gap: 4px; align-items: center; }
.pagination .page-btns button {
    padding: 6px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--text); border-radius: var(--radius);
    cursor: pointer; font-size: 13px; transition: all var(--tx);
}
.pagination .page-btns button:hover { border-color: var(--accent); color: var(--accent); }
.pagination .page-btns button.active { background: var(--accent-grad); color: #0a0e1a; border-color: transparent; font-weight: 600; }
.pagination .page-btns button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-size select {
    padding: 6px 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--text); border-radius: var(--radius); font-size: 13px;
}

/* ---------- Modal ---------- */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(5, 8, 18, 0.75); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); z-index: 1000; justify-content: center; align-items: center; }
.modal-overlay.show { display: flex; }
.modal {
    background: var(--bg-card-strong); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    width: 520px; max-height: 80vh; overflow-y: auto;
    box-shadow: var(--shadow), var(--shadow-glow);
    animation: modalIn .25s cubic-bezier(.4,0,.2,1);
}
@keyframes modalIn { from { opacity: 0; transform: scale(.96) translateY(8px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-header { padding: 18px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { font-size: 16px; color: var(--text); font-weight: 600; }
.modal-header .close-btn { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-mute); transition: color var(--tx); }
.modal-header .close-btn:hover { color: var(--danger); }
.modal-body { padding: 22px 24px; color: var(--text); }
.modal-footer { padding: 14px 24px; border-top: 1px solid var(--border); text-align: right; }

/* ---------- Tags / Badges ---------- */
.tag { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; letter-spacing: 0.3px; }
.tag-success { background: rgba(74,222,128,0.12); color: var(--success); border: 1px solid rgba(74,222,128,0.3); }
.tag-danger { background: rgba(248,113,113,0.12); color: var(--danger); border: 1px solid rgba(248,113,113,0.3); }
.tag-warning { background: rgba(251,191,36,0.12); color: var(--warning); border: 1px solid rgba(251,191,36,0.3); }
.tag-info { background: rgba(56,189,248,0.12); color: var(--info); border: 1px solid rgba(56,189,248,0.3); }

/* ---------- Toast ---------- */
.toast-container { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 99999; display: flex; flex-direction: column; align-items: center; pointer-events: none; }
.toast {
    padding: 14px 28px; border-radius: var(--radius); color: #fff;
    margin-bottom: 10px; font-size: 14px; font-weight: 600;
    box-shadow: var(--shadow); backdrop-filter: var(--blur);
    animation: toastIn .3s cubic-bezier(.4,0,.2,1), toastOut .4s 2.5s forwards;
    min-width: 220px; text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}
.toast-success { background: rgba(74,222,128,0.92); color: #06141e; }
.toast-error { background: rgba(248,113,113,0.92); }
.toast-info { background: rgba(56,189,248,0.92); color: #06141e; }
@keyframes toastIn { from { transform: scale(.8) translateY(-10px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; transform: translateY(-10px); } }

/* ---------- User Portal ---------- */
.user-layout { max-width: 960px; margin: 0 auto; padding: 28px; }
.user-header {
    background: var(--bg-card-strong); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    color: var(--text); border-radius: var(--radius-lg);
    padding: 26px; margin-bottom: 24px;
    display: flex; justify-content: space-between; align-items: center;
    position: relative; overflow: hidden;
}
.user-header::before {
    content: ''; position: absolute; inset: 0;
    background: var(--accent-grad); opacity: 0.06;
}
.user-header > * { position: relative; z-index: 1; }
.user-header .char-info h2 { font-size: 20px; margin-bottom: 6px; font-weight: 700; }
.user-header .char-info .char-detail { font-size: 13px; color: var(--text-dim); }
.user-header .balance { text-align: right; }
.user-header .balance .amount {
    font-size: 32px; font-weight: 800;
    background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.user-header .balance .label { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; text-transform: uppercase; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.product-card {
    background: var(--bg-card); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 22px;
    transition: all var(--tx);
}
.product-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow-glow); }
.product-card .name { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.product-card .price { font-size: 24px; font-weight: 800; background: linear-gradient(135deg, #fbbf24 0%, #f87171 100%); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 12px; }
.product-card .detail { font-size: 12px; color: var(--text-dim); margin-bottom: 14px; }
.section-title { font-size: 18px; font-weight: 600; margin: 24px 0 16px; padding-bottom: 8px; border-bottom: 2px solid; border-image: var(--accent-grad) 1; color: var(--text); }

/* ---------- Custom Confirm Dialog ---------- */
#_confirmOverlay { display: none; position: fixed; inset: 0; background: rgba(5, 8, 18, 0.75); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); z-index: 9999; justify-content: center; align-items: center; }
.confirm-box {
    background: var(--bg-card-strong); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 28px 24px 20px; width: 340px;
    box-shadow: var(--shadow), var(--shadow-glow);
    text-align: center;
    animation: modalIn .25s cubic-bezier(.4,0,.2,1);
}
.confirm-msg { font-size: 14px; color: var(--text); margin-bottom: 24px; line-height: 1.6; }
.confirm-btns { display: flex; gap: 12px; }
.confirm-cancel {
    flex: 1; padding: 10px;
    background: rgba(255,255,255,0.05); border: 1px solid var(--border);
    border-radius: var(--radius); font-size: 13px; cursor: pointer;
    color: var(--text-dim); transition: all var(--tx);
}
.confirm-cancel:hover { border-color: var(--text-dim); color: var(--text); }
.confirm-ok {
    flex: 1; padding: 10px;
    background: var(--accent-grad); color: #0a0e1a;
    border: none; border-radius: var(--radius);
    font-size: 13px; cursor: pointer; font-weight: 600;
    transition: all var(--tx); box-shadow: 0 4px 12px rgba(0,217,255,0.3);
}
.confirm-ok:hover { filter: brightness(1.1); box-shadow: 0 6px 18px rgba(0,217,255,0.5); }

/* ---------- Tab Bar ---------- */
.tab-bar {
    display: flex; align-items: center;
    background: var(--bg-card); backdrop-filter: var(--blur);
    border: 1px solid var(--border);
    padding: 6px 8px;
    min-height: 42px; flex-shrink: 0;
    margin-bottom: 16px; border-radius: var(--radius);
}
.tab-list { display: flex; flex: 1; overflow-x: auto; gap: 4px; }
.tab-list::-webkit-scrollbar { height: 0; }
.tab-item {
    display: flex; align-items: center; padding: 7px 14px;
    cursor: pointer; border: 1px solid transparent; border-radius: var(--radius);
    font-size: 13px; white-space: nowrap;
    background: transparent; color: var(--text-dim);
    transition: all var(--tx);
}
.tab-item:hover { background: rgba(0,217,255,0.06); color: var(--text); }
.tab-item.active {
    background: rgba(0,217,255,0.12);
    color: var(--accent); border-color: rgba(0,217,255,0.3);
    font-weight: 600;
}
.tab-close { margin-left: 6px; font-size: 14px; color: var(--text-mute); cursor: pointer; line-height: 1; transition: color var(--tx); }
.tab-close:hover { color: var(--danger); }
.tab-refresh-btn {
    background: rgba(255,255,255,0.04); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 5px 11px; cursor: pointer;
    font-size: 15px; color: var(--text-dim); margin-left: 8px;
    flex-shrink: 0; transition: all var(--tx);
}
.tab-refresh-btn:hover { color: var(--accent); border-color: var(--accent); transform: rotate(90deg); }

/* ---------- Report Content ---------- */
.report-content { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Sidebar Groups ---------- */
.sidebar nav .nav-group-title {
    display: block; padding: 11px 22px;
    color: var(--text-mute); font-size: 11px; font-weight: 700;
    cursor: pointer; user-select: none;
    letter-spacing: 1.5px; text-transform: uppercase;
    transition: color var(--tx);
}
.sidebar nav .nav-group-title:hover { color: var(--accent); }
.sidebar nav .nav-group-title::before { content: '▸ '; font-size: 10px; transition: transform var(--tx); display: inline-block; }
.sidebar nav .nav-group-title.open::before { content: '▾ '; }
.sidebar nav .nav-group { display: none; }
.sidebar nav .nav-group.open { display: block; background: rgba(0,0,0,0.15); }
.sidebar nav .nav-group a { padding-left: 38px; font-size: 13px; }

/* ---------- Mobile Menu Button ---------- */
.mobile-menu-btn {
    display: none; position: fixed; top: 12px; left: 12px; z-index: 200;
    width: 42px; height: 42px; border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--bg-card-strong); backdrop-filter: var(--blur);
    color: var(--text); font-size: 22px; cursor: pointer;
    box-shadow: var(--shadow);
    align-items: center; justify-content: center;
}
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(5,8,18,0.6); backdrop-filter: blur(4px); z-index: 99; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .sidebar { display: none; position: fixed; z-index: 101; }
    .sidebar.mobile-open { display: block; }
    .sidebar-overlay.show { display: block; }
    .mobile-menu-btn { display: flex; }
    .main-content { margin-left: 0; padding: 70px 16px 16px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .login-box { width: 100%; padding: 28px 22px; }
    table { font-size: 12px; }
    table th, table td { padding: 9px 8px; }
    .modal { width: 95%; }
}

/* =============================================================
   深色背景下 inline color 兜底覆盖
   admin.html / user.html 等含大量 inline style="color:#333" 等浅色文本规则,
   在深色主题下不可见 → 全部强制改成浅色文本 / 主题色.
   只覆盖文字颜色, 背景 / 边框 inline style 保留不动.
   ============================================================= */

/* 中性深色文字 #333/#555/#666/#888/#999/#aaa/#bbb → 浅文 */
[style*="color:#333"], [style*="color: #333"],
[style*="color:#444"], [style*="color: #444"],
[style*="color:#555"], [style*="color: #555"],
[style*="color:#666"], [style*="color: #666"] {
    color: var(--text) !important;
}
[style*="color:#777"], [style*="color: #777"],
[style*="color:#888"], [style*="color: #888"],
[style*="color:#999"], [style*="color: #999"],
[style*="color:#aaa"], [style*="color: #aaa"],
[style*="color:#bbb"], [style*="color: #bbb"],
[style*="color:#ccc"], [style*="color: #ccc"] {
    color: var(--text-dim) !important;
}
/* 旧主色蓝 #1890ff → 新 accent (青) */
[style*="color:#1890ff"], [style*="color: #1890ff"],
[style*="color:#40a9ff"], [style*="color: #40a9ff"],
[style*="color:#096dd9"], [style*="color: #096dd9"] {
    color: var(--accent) !important;
}
/* 红/橙/绿 inline 强调色保留, 但对比度增亮 */
[style*="color:#f5222d"], [style*="color: #f5222d"],
[style*="color:#ff4d4f"], [style*="color: #ff4d4f"] {
    color: var(--danger) !important;
}
[style*="color:#fa8c16"], [style*="color: #fa8c16"],
[style*="color:#fa541c"], [style*="color: #fa541c"],
[style*="color:#faad14"], [style*="color: #faad14"] {
    color: var(--warning) !important;
}
[style*="color:#52c41a"], [style*="color: #52c41a"],
[style*="color:#73d13d"], [style*="color: #73d13d"] {
    color: var(--success) !important;
}

/* 普通文本元素也兜底 (inline 没指定 color 但默认 black) */
input[type="text"], input[type="password"], input[type="number"],
input[type="email"], input[type="tel"], input[type="search"],
input[type="date"], input[type="datetime-local"],
textarea, select {
    color: var(--text) !important;
    background-color: rgba(255,255,255,0.04) !important;
}
/* 文本输入框 placeholder */
input::placeholder, textarea::placeholder { color: var(--text-mute) !important; }

/* 通用兜底: 任何 inline 写死 #000 / black */
[style*="color:#000"], [style*="color: #000"],
[style*="color:black"], [style*="color: black"] {
    color: var(--text) !important;
}

/* 用户后台等 body 颜色 fallback */
body, p, span, div, td, th, h1, h2, h3, h4, h5, h6, label, li {
    color: inherit;
}

/* =============================================================
   登录页文字加亮 - 截图反馈灰色字看不清
   ============================================================= */
.login-box .subtitle { color: var(--text-dim) !important; font-weight: 500; }
.form-group label { color: var(--text) !important; opacity: 0.85; }
.form-group input::placeholder,
.form-group textarea::placeholder,
input::placeholder, textarea::placeholder {
    color: rgba(230, 236, 243, 0.4) !important;
}
.cs-btn.placeholder, .custom-select .cs-trigger.placeholder {
    color: rgba(230, 236, 243, 0.45) !important;
}