/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --sidebar-width: 240px;
    --sidebar-collapsed: 60px;
    --primary: #059669;
    --primary-dark: #047857;
    --primary-light: #d1fae5;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --bg: #f0fdf4;
    --card-bg: rgba(255,255,255,0.82);
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: rgba(5,150,105,0.12);
    --sidebar-bg: linear-gradient(180deg, #064e3b, #047857, #059669);
    --sidebar-text: #a7f3d0;
    --sidebar-active: #34d399;
    --topbar-height: 56px;
    --glass-bg: rgba(255,255,255,0.65);
    --glass-border: rgba(255,255,255,0.5);
    --glass-shadow: 0 4px 20px rgba(5,150,105,0.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== Auth Pages ========== */
.auth-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; background: linear-gradient(135deg, #059669, #34d399, #6ee7b7);
}
.auth-container { width: 100%; max-width: 420px; padding: 20px; }
.auth-card {
    background: rgba(255,255,255,0.88); border-radius: 16px; padding: 40px 32px;
    box-shadow: 0 8px 40px rgba(5,150,105,0.2); backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.6);
}
.auth-card h1 { text-align: center; color: var(--primary); font-size: 28px; margin-bottom: 4px; }
.auth-card .auth-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 28px; font-size: 14px; }
.auth-card a { color: var(--primary); text-decoration: none; font-size: 14px; }

/* ========== Sidebar ========== */
.sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar-width);
    background: var(--sidebar-bg); color: var(--sidebar-text);
    z-index: 100; transition: transform 0.3s, width 0.3s;
    display: flex; flex-direction: column;
}
.sidebar-header {
    padding: 24px 16px 20px; text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    position: relative;
}
.sidebar-avatar {
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, #34d399, #059669);
    color: #fff; font-size: 24px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 10px; box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    overflow: hidden;
}
.sidebar-avatar img {
    width: 100%; height: 100%; border-radius: 50%;
    object-fit: cover; display: block;
}
.sidebar-user-info {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.sidebar-nickname {
    color: #fff; font-size: 16px; font-weight: 600; max-width: 160px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sidebar-balance {
    color: #4ade80; font-size: 14px; font-weight: 600; margin-top: 2px;
}
.btn-edit-nickname {
    position: absolute; top: 18px; right: 12px;
    background: rgba(255,255,255,0.1); border: none; color: #a2a3b7;
    width: 28px; height: 28px; border-radius: 6px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.btn-edit-nickname:hover { background: rgba(255,255,255,0.2); color: #fff; }
.sidebar-nav { padding: 8px 0; flex: 1; overflow-y: auto; }
.nav-item {
    display: block; padding: 12px 20px; color: var(--sidebar-text);
    text-decoration: none; font-size: 14px; transition: all 0.2s;
    border-left: 3px solid transparent;
}
.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-item.active {
    background: rgba(5,150,105,0.2); color: #fff;
    border-left-color: var(--sidebar-active);
}

/* Sidebar footer */
.sidebar-footer {
    flex-shrink: 0; padding: 8px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.nav-item-reset-key {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 20px; color: rgba(255,255,255,0.5);
    background: none; border: none; border-left: 3px solid transparent;
    text-decoration: none; font-size: 13px; cursor: pointer;
    transition: all 0.2s; width: 100%; text-align: left;
    font-family: inherit;
}
.nav-item-reset-key:hover {
    background: rgba(239,68,68,0.15); color: #fca5a5;
    border-left-color: var(--danger);
}
.nav-item-reset-key svg { flex-shrink: 0; }

/* ========== Main Content ========== */
.main-content {
    margin-left: var(--sidebar-width); min-height: 100vh;
    transition: margin-left 0.3s;
}
.topbar {
    height: var(--topbar-height); background: rgba(255,255,255,0.85); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border); display: flex; align-items: center;
    padding: 0 20px; position: sticky; top: 0; z-index: 50;
}
.menu-btn {
    background: none; border: none; font-size: 24px; cursor: pointer;
    color: var(--text); padding: 8px 12px; margin-right: 12px; border-radius: 4px;
    touch-action: manipulation; -webkit-tap-highlight-color: transparent;
}
.menu-btn:hover { background: var(--bg); }
.topbar-title { font-size: 18px; font-weight: 600; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-balance { font-weight: 600; color: var(--primary); }
.content-area { padding: 20px; max-width: 100%; }

/* ========== Stats ========== */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card {
    background: var(--glass-bg); border-radius: 12px; padding: 20px;
    box-shadow: var(--glass-shadow); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border); transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(5,150,105,0.12); }
.stat-value { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ========== Charts ========== */
.chart-controls { margin-bottom: 16px; }
.charts-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.chart-box { background: var(--glass-bg); border-radius: 12px; padding: 20px; box-shadow: var(--glass-shadow); backdrop-filter: blur(8px); border: 1px solid var(--glass-border); }
.chart-box h3 { font-size: 15px; margin-bottom: 12px; color: var(--text-muted); }
.chart-box canvas { width: 100%; max-height: 300px; }

/* ========== Toolbar ========== */
.toolbar {
    display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
    margin-bottom: 16px; padding: 14px 16px; background: var(--glass-bg);
    border-radius: 12px; box-shadow: var(--glass-shadow); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
}
.toolbar label { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.toolbar-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.status-row { display: flex; flex-wrap: wrap; gap: 2px 10px; font-size: 13px; align-items: center; color: var(--text-muted); }

/* 桌面端：时间选择器和下拉框不撑爆标签 */
.toolbar input[type="datetime-local"].form-input { width: auto; max-width: 160px; }
.toolbar select.form-input { width: auto; min-width: 100px; }
.status-row label { font-weight: normal; display: inline-flex; align-items: center; gap: 3px; font-size: 13px; }
.status-row label input { margin: 0; }
.batch-toolbar {
    display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; align-items: center;
}
.col-toggle { font-size: 12px; white-space: nowrap; cursor: pointer; }
.col-toggle input { margin: 0 2px 0 0; vertical-align: middle; }

/* ========== Feedback actions ========== */
.feedback-actions {
    display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
}
.fb-btn { padding: 12px 40px; font-size: 16px; }

/* Toggle switch */
.toggle-switch {
    display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font-size: 13px; color: #888;
    user-select: none; white-space: nowrap;
}
.toggle-switch input { display: none; }
.toggle-slider {
    width: 36px; height: 20px; background: #ccc; border-radius: 10px; position: relative;
    transition: background 0.2s; flex-shrink: 0;
}
.toggle-slider::after {
    content: ''; position: absolute; width: 16px; height: 16px; border-radius: 50%;
    background: #fff; top: 2px; left: 2px; transition: transform 0.2s;
}
.toggle-switch input:checked + .toggle-slider { background: #27ae60; }
.toggle-switch input:checked + .toggle-slider::after { transform: translateX(16px); }
.toggle-label { font-size: 13px; color: #888; }

/* ========== Tables ========== */
.table-wrap { overflow-x: auto; background: var(--glass-bg); border-radius: 12px; box-shadow: var(--glass-shadow); backdrop-filter: blur(8px); border: 1px solid var(--glass-border); }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 800px; }
.data-table th {
    background: #fafafa; padding: 10px 12px; text-align: left; font-weight: 600;
    border-bottom: 2px solid var(--border); white-space: nowrap; font-size: 12px;
    color: var(--text-muted); text-transform: uppercase;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.data-table tr:hover { background: #ecfdf5; }
.data-table .data-cell {
    cursor: pointer; user-select: none;
    transition: background 0.2s;
}
.data-table .data-cell:hover { background: #d1fae5; }
.data-table .data-cell.copied-cell {
    color: var(--primary); font-weight: 600; background: #d1fae5; cursor: default;
}
.log-table .log-time { white-space: nowrap !important; width: 152px !important; min-width: 152px !important; max-width: 152px !important; }
.data-table .status-badge {
    display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px;
    font-weight: 600;
}
.status-待处理, .status-处理中 { background: #fff3e0; color: #e65100; }
.status-已完成 { background: #e8f5e9; color: #2e7d32; }
.status-已失败, .status-扣费失败 { background: #ffebee; color: #c62828; }
.status-已撤单, .status-撤单中 { background: #f3e5f5; color: #6a1b9a; }

/* ========== Tabs ========== */
.tab-header {
    display: flex; gap: 0; margin-bottom: 16px;
    background: var(--glass-bg); border-radius: 12px;
    box-shadow: var(--glass-shadow); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border); overflow: hidden;
}
.tab-btn {
    flex: 1; padding: 12px 24px; border: none; background: transparent;
    font-size: 14px; font-weight: 600; cursor: pointer; color: var(--text-muted);
    transition: all 0.2s; font-family: inherit; position: relative;
}
.tab-btn:hover { background: rgba(5,150,105,0.05); color: var(--text); }
.tab-btn.active {
    color: #fff; background: var(--primary);
}
.tab-content { display: none; }
.tab-content[style*="display:block"] { display: block; }

/* ========== Sub-Category Bar ========== */
.sub-category-bar {
    display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px;
    padding: 10px 14px; background: var(--glass-bg); border-radius: 10px;
    box-shadow: var(--glass-shadow); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
}
.sub-cat-btn {
    padding: 6px 16px; border: 1px solid var(--border); border-radius: 20px;
    background: rgba(255,255,255,0.6); font-size: 13px; cursor: pointer;
    transition: all 0.2s; font-family: inherit; color: var(--text-muted);
}
.sub-cat-btn:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }
.sub-cat-btn.active {
    background: var(--primary); color: #fff; border-color: var(--primary);
    font-weight: 600;
}

/* ========== Forms ========== */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 500; color: var(--text); }
.form-input {
    width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 14px; transition: border-color 0.2s; font-family: inherit;
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(5,150,105,0.15); }
select.form-input { background: #fff; }
textarea.form-input { resize: vertical; min-height: 80px; }
.input-row { display: flex; gap: 8px; }
.input-row .form-input { flex: 1; }

/* ========== Buttons ========== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 13px; cursor: pointer; transition: all 0.2s;
    background: #fff; color: var(--text); text-decoration: none;
    font-family: inherit;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #f0f0f0; color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #c0392b; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-copy-key { background: transparent; color: var(--primary); border-color: var(--primary); transition: all 0.2s; }
.btn-copy-key:hover { background: var(--primary); color: #fff; }
.btn-copy-key.copied { background: var(--success); color: #fff; border-color: var(--success); }
.btn-recharge { background: var(--warning); color: #fff; border-color: var(--warning); transition: all 0.2s; }
.btn-recharge:hover { background: #d97706; color: #fff; border-color: #d97706; }
.btn-download { background: var(--primary); color: #fff; border-color: var(--primary); transition: all 0.2s; }
.btn-download:hover { background: #5a6fd6; color: #fff; border-color: #5a6fd6; }
.btn-warning { background: #f59e0b; color: #fff; border-color: #f59e0b; }
.btn-warning:hover { background: #d97706; color: #fff; border-color: #d97706; }

/* ========== Modal ========== */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4); z-index: 200;
}
.modal {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.95); border-radius: 16px; z-index: 201; width: 90%;
    max-width: 640px; max-height: 85vh; overflow-y: auto;
    box-shadow: 0 16px 48px rgba(5,150,105,0.15); backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.6);
}
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 17px; }
.modal-close {
    background: none; border: none; font-size: 24px; cursor: pointer;
    color: var(--text-muted); padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; }

/* ========== Recharge / Payment ========== */
.recharge-qr-container { text-align: center; }
.recharge-amount-label { font-size: 13px; color: var(--text-muted); margin-bottom: 2px; }
.recharge-amount { font-size: 32px; font-weight: 700; color: var(--danger); margin-bottom: 16px; }
.recharge-qr-wrap {
    display: flex; align-items: center; justify-content: center;
    width: 220px; height: 220px; margin: 0 auto 16px;
    border: 2px solid var(--border); border-radius: 12px;
    overflow: hidden; background: #fff;
}
.recharge-qr-img { width: 100%; height: 100%; object-fit: contain; }
.recharge-qr-error {
    display: flex; align-items: center; justify-content: center;
    width: 100%; height: 100%; color: var(--danger); font-size: 14px;
    padding: 16px; text-align: center;
}
.recharge-warning { font-size: 14px; font-weight: 600; color: var(--danger); margin-bottom: 12px; }
.recharge-countdown { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.recharge-status { font-size: 14px; color: var(--text-muted); }

/* ========== Messages ========== */
.msg-box { padding: 10px 16px; border-radius: 6px; margin-top: 12px; font-size: 13px; }
.msg-error { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }
.msg-success { background: #e8f5e9; color: #2e7d32; border: 1px solid #c8e6c9; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); font-size: 13px; }

/* ========== Sidebar Overlay (Mobile) ========== */
.sidebar-overlay {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4); z-index: 90;
    -webkit-tap-highlight-color: transparent;
}
body.sidebar-open { overflow: hidden; }

/* ========== Product Cards ========== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}
.product-card {
    background: var(--glass-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--glass-shadow); backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    transition: transform 0.2s, box-shadow 0.2s;
}
.product-card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(5,150,105,0.15); }
.product-card-img {
    width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block;
    background: #f5f5f5;
}
.product-card-img-placeholder {
    width: 100%; aspect-ratio: 1 / 1; display: flex; align-items: center;
    justify-content: center; background: #f5f5f5; color: var(--text-muted);
    font-size: 13px;
}
.product-card-body { padding: 12px 14px; }
.product-card-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.product-card-type {
    display: inline-block; padding: 2px 6px; border-radius: 4px;
    font-size: 11px; background: var(--primary-light); color: var(--primary);
    margin-bottom: 8px;
}
.product-card-price { margin-bottom: 4px; }
.product-card-price .price-current {
    font-size: 18px; font-weight: 700; color: var(--danger);
}
.product-card-price .price-default {
    font-size: 12px; color: var(--text-muted);
    text-decoration: line-through; margin-right: 8px;
}
.product-card-stock {
    display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px;
}
.product-card-desc {
    font-size: 12px; color: var(--text-muted); line-height: 1.4;
}

/* Sidebar collapsed state (desktop) */
.sidebar.collapsed { width: var(--sidebar-collapsed); }
.sidebar.collapsed .sidebar-header .sidebar-avatar { width: 36px; height: 36px; font-size: 16px; margin-bottom: 4px; }
.sidebar.collapsed .sidebar-header .sidebar-user-info,
.sidebar.collapsed .sidebar-header .btn-edit-nickname { display: none; }
.sidebar.collapsed .nav-item { font-size: 0; text-align: center; padding: 12px 0; }
.sidebar.collapsed .nav-item::before { content: '\25B8'; font-size: 14px; }
.sidebar.collapsed .nav-item.active::before { color: var(--sidebar-active); }
.sidebar.collapsed .sidebar-footer { padding: 4px 0; }
.sidebar.collapsed .nav-item-reset-key { justify-content: center; padding: 10px 0; }
.sidebar.collapsed .nav-item-reset-key span { display: none; }
.sidebar.collapsed .nav-item-reset-key svg { width: 18px; height: 18px; }
.main-content.expanded { margin-left: var(--sidebar-collapsed); }

/* ================================================================ */
/*  移动端响应式 — 放在最后确保覆盖桌面基础样式                      */
/* ================================================================ */
@media (max-width: 768px) {
    /* 移动端通过网页操作，不显示桌面客户端下载入口。 */
    .topbar .btn-download { display: none; }

    .sidebar { left: -260px; width: var(--sidebar-width); visibility: hidden; transition: left 0.3s, visibility 0.3s; }
    .sidebar.open { left: 0; visibility: visible; }
    .sidebar-overlay { display: none; }
    .sidebar-overlay.show { display: block; }
    .main-content { margin-left: 0 !important; }
    .charts-row { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }

    /* ===== 工具栏：查询按钮撑满，时间选择标签加宽、输入框收窄 ===== */
    .toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
    .toolbar .toolbar-row {
        display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
    }
    /* 查询按钮撑满整行 */
    .toolbar .btn { flex: 1 1 auto; text-align: center; }
    .toolbar .btn-primary { width: 100%; flex: none; }
    /* 搜索框 / select 撑满 label */
    .toolbar .toolbar-row label {
        flex: 1 1 auto; min-width: 0;
    }
    .toolbar .toolbar-row input[type="text"].form-input,
    .toolbar .toolbar-row select.form-input {
        width: 100%; min-width: 0; flex: 1;
    }
    /* 时间选择器：标签文字加宽显示，输入框收窄，一行不换行 */
    .toolbar .toolbar-row label:has(input[type="datetime-local"]) {
        flex: 0 0 auto; min-width: 0;
        white-space: nowrap;
    }
    .toolbar input[type="datetime-local"].form-input {
        width: auto; max-width: 110px; min-width: 0;
        font-size: 11px; padding: 5px 4px;
    }
    /* 状态checkbox行：自然铺满宽度 */
    .toolbar .status-row {
        display: flex; flex-wrap: wrap; gap: 2px 6px; font-size: 12px;
    }
    .toolbar .status-row label {
        font-weight: normal; display: inline-flex; align-items: center; gap: 2px;
        flex: 0 0 auto; font-size: 12px;
    }
    .toolbar .status-row label input { margin: 0; }
    /* 数字输入框固定小宽度 */
    .toolbar input[type="number"].form-input { width: 70px !important; flex: none; }
    .toolbar .toolbar-row label:has(input[type="number"]) { flex: 0 0 auto; }

    /* ===== 商品卡片：列表式，左图右文 ===== */
    .product-grid {
        display: flex; flex-direction: column; gap: 8px;
    }
    .product-card {
        display: flex; flex-direction: row; align-items: flex-start;
        border-radius: 10px; padding: 8px; gap: 10px;
    }
    .product-card-img,
    .product-card-img-placeholder {
        width: 80px; height: 80px; flex-shrink: 0; aspect-ratio: auto;
        border-radius: 8px; object-fit: cover;
    }
    .product-card-img-placeholder { font-size: 11px; display: flex; }
    .product-card-body {
        flex: 1; min-width: 0; padding: 0;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 2px 8px;
        align-items: baseline;
    }
    .product-card-name {
        font-size: 13px; font-weight: 600;
        grid-column: 1; grid-row: 1;
        overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    }
    .product-card-type {
        font-size: 10px; padding: 1px 5px;
        grid-column: 2; grid-row: 1;
        align-self: center; margin-bottom: 0;
    }
    .product-card-price {
        grid-column: 1 / -1; grid-row: 2;
        margin-bottom: 0;
    }
    .product-card-price .price-current { font-size: 15px; }
    .product-card-price .price-default { font-size: 10px; display: none; }
    .product-card-stock {
        font-size: 11px; grid-column: 1 / -1;
    }
    .product-card-body .btn {
        grid-column: 2; justify-self: end; width: auto;
    }

    /* ===== 移动端按钮 & 元素字体缩小 ===== */
    .btn { font-size: 12px; padding: 6px 12px; }
    .btn-sm { font-size: 11px; padding: 3px 8px; }
    .data-table { font-size: 12px; }
    .data-table th { font-size: 11px; }
    .data-table td { font-size: 12px; }
    .data-table .status-badge { font-size: 10px; padding: 1px 6px; }
    .log-table .log-time { width: 152px !important; min-width: 152px !important; max-width: 152px !important; white-space: nowrap !important; }
    .form-input { font-size: 13px; padding: 6px 10px; }
    .form-group label { font-size: 12px; }
    .stat-value { font-size: 24px; }
    .stat-label { font-size: 12px; }
    .topbar-title { font-size: 16px; }
    .menu-btn { font-size: 20px; }
    .modal-header h3 { font-size: 15px; }
    .modal-body { padding: 16px; }
    .pagination-bar { padding: 10px 12px; gap: 8px; }
    .pagination-info { font-size: 12px; }
    .pagination-controls label { font-size: 12px; }
    .pagination-controls select { font-size: 12px; padding: 3px 6px; }
    .pagination-controls .btn { font-size: 11px; padding: 4px 8px; }

    .topbar { padding: 0 12px; }
    .topbar-balance { display: none; }
    .content-area { padding: 12px; }
    .modal { width: 95%; max-width: none; }

    /* 移动端隐藏"显示列"选择框 */
    .col-toggle-area { display: none; }

    /* 移动端批量操作弹窗按钮缩小 */
    #blModal .btn { padding: 8px 14px !important; font-size: 13px !important; margin: 0 4px !important; }
    .fb-btn { padding: 8px 18px !important; font-size: 13px !important; }
    .feedback-actions { gap: 6px; }
    .toggle-label { font-size: 11px; }
}

@media (max-width: 480px) {
    .stats-row { grid-template-columns: 1fr 1fr; }
    .stat-value { font-size: 22px; }
    .auth-card { padding: 24px 16px; }

    /* ===== 超小屏：列表式更紧凑 ===== */
    .product-grid { gap: 6px; }
    .product-card { padding: 6px; gap: 8px; }
    .product-card-img,
    .product-card-img-placeholder {
        width: 64px; height: 64px;
    }
    .product-card-img-placeholder { font-size: 10px; }
    .product-card-body { gap: 1px 6px; }
    .product-card-name { font-size: 12px; }
    .product-card-type { font-size: 9px; padding: 1px 4px; }
    .product-card-price .price-current { font-size: 14px; }
    .product-card-desc { font-size: 10px; -webkit-line-clamp: 2; }

    /* 超小屏工具栏 */
    .toolbar { gap: 6px; }
    .toolbar .toolbar-row { gap: 6px; }
    .toolbar label { font-size: 11px; }
    .toolbar .btn { font-size: 12px; padding: 6px 10px; }
    .toolbar input[type="datetime-local"].form-input { max-width: 95px; }
    .toolbar .status-row { gap: 1px 4px; font-size: 11px; }
    .toolbar .status-row label { font-size: 11px; }

    /* ===== 超小屏按钮 & 元素进一步缩小 ===== */
    .btn { font-size: 11px; padding: 5px 10px; }
    .btn-sm { font-size: 10px; padding: 2px 6px; }
    .data-table { font-size: 11px; }
    .data-table th { font-size: 10px; padding: 6px 8px; }
    .data-table td { font-size: 11px; padding: 6px 8px; }
    .data-table .status-badge { font-size: 9px; padding: 1px 4px; }
    .log-table .log-time { width: 152px !important; min-width: 152px !important; max-width: 152px !important; white-space: nowrap !important; }
    .form-input { font-size: 12px; padding: 5px 8px; }
    .form-group label { font-size: 11px; }
    .stat-value { font-size: 20px; }
    .stat-label { font-size: 11px; }
    .topbar-title { font-size: 14px; }
    .menu-btn { font-size: 18px; padding: 6px 8px; }
    .modal-header h3 { font-size: 14px; }
    .modal-body { padding: 12px; }
    .modal-header { padding: 12px 16px; }
    .pagination-bar { padding: 8px 10px; }
    .pagination-info { font-size: 11px; }
    .pagination-controls label { font-size: 11px; }
    .pagination-controls select { font-size: 11px; padding: 2px 4px; }
    .pagination-controls .btn { font-size: 10px; padding: 3px 6px; }
    .nav-item { font-size: 13px; padding: 10px 16px; }
    .msg-box { font-size: 12px; padding: 8px 12px; }
    .tab-btn { font-size: 13px; padding: 10px 16px; }
    .sub-cat-btn { font-size: 12px; padding: 5px 12px; }
}

/* Pagination */
.pagination-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-top: none;
    border-radius: 0 0 8px 8px;
    gap: 12px;
    flex-wrap: wrap;
}
.pagination-info {
    font-size: 14px;
    color: #6b7280;
}
.pagination-info b {
    color: #1f2937;
}
.pagination-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.pagination-controls label {
    font-size: 13px;
    color: #6b7280;
    display: flex;
    align-items: center;
    gap: 4px;
}
.pagination-controls select {
    padding: 4px 8px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 13px;
    background: #fff;
}
.pagination-controls .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ========== Toast ========== */
.toast-container {
    position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
    z-index: 9999; display: flex; flex-direction: column; align-items: center;
    gap: 8px; pointer-events: none;
}
.toast {
    padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 500;
    color: #fff; box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
    pointer-events: auto; max-width: 420px; text-align: center;
    word-break: break-word;
}
.toast-success { background: #10b981; }
.toast-error { background: #ef4444; }
.toast-warning { background: #f59e0b; color: #1f2937; }
.toast-info { background: #3b82f6; }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes toastOut {
    from { opacity: 1; }
    to { opacity: 0; transform: translateY(-10px); }
}
@keyframes spin {
    to { transform: rotate(360deg); }
}