/* ============ ShopCard 后台样式 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --bg: #f1f5f9;
    --sidebar: #111827;
    --sidebar-text: #9ca3af;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg); color: var(--text); line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; }
.muted { color: var(--muted); font-size: .9em; }
.center { text-align: center; }
.mt { margin-top: 16px; }
.text-danger { color: var(--danger); }
.break { word-break: break-all; }
.inline { display: inline; }

/* 布局 */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 210px; background: var(--sidebar); color: var(--sidebar-text);
    display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; flex-shrink: 0;
}
.sidebar-brand { padding: 18px 16px; font-weight: 700; color: #fff; font-size: 17px; border-bottom: 1px solid #1f2937; }
.sidebar-brand small { display: block; font-weight: 400; color: var(--sidebar-text); font-size: 12px; margin-top: 2px; }
.sidebar-nav { padding: 10px 0; flex: 1; overflow-y: auto; }
.sidebar-nav a { display: block; padding: 10px 18px; color: var(--sidebar-text); font-size: 14px; border-left: 3px solid transparent; }
.sidebar-nav a:hover { color: #fff; background: #1f2937; }
.sidebar-nav a.active { color: #fff; background: #1f2937; border-left-color: var(--primary); }
.admin-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.admin-topbar {
    height: 56px; background: #fff; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between; padding: 0 20px; position: sticky; top: 0; z-index: 10;
}
.topbar-info { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.role-tag { background: #eff6ff; color: #1d4ed8; padding: 2px 8px; border-radius: 6px; font-size: 12px; }
.tag-danger { background: #fef2f2; color: #dc2626; }
.topbar-actions { display: flex; gap: 6px; }
.admin-content { padding: 20px; flex: 1; }

/* 按钮 */
.btn {
    display: inline-block; padding: 7px 14px; border-radius: 8px; border: 1px solid transparent;
    font-size: 13px; cursor: pointer; text-align: center; transition: all .15s; line-height: 1.4; background: none;
}
.btn-sm { padding: 4px 9px; font-size: 12px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { color: var(--muted); }
.btn-ghost:hover { color: var(--primary); background: #f3f4f6; }
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; font-size: 13px; padding: 0; }
.btn-link:hover { text-decoration: underline; }
.btn-link.text-danger { color: var(--danger); }
.btn-block { display: block; width: 100%; }

/* 输入 */
.input {
    width: 100%; padding: 8px 11px; border: 1px solid var(--border); border-radius: 8px;
    font-size: 13px; background: #fff; color: var(--text);
}
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.input-sm { width: auto; padding: 5px 9px; }
select.input { width: auto; }
label { font-size: 12px; color: var(--muted); margin-bottom: 4px; display: block; }
.check-label { display: inline-flex; align-items: center; gap: 6px; color: var(--text); font-size: 13px; }

/* 提示 */
.alert { padding: 11px 15px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warn { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

/* 页头与筛选 */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head h1 { font-size: 20px; }
.page-head p { width: 100%; }
.filter-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }

/* 统计卡 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.stat-num { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-label { color: var(--muted); font-size: 13px; }

/* 面板 */
.panel { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 16px; }
.panel h3 { font-size: 15px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }

/* 表格 */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; background: #fff; }
.table th, .table td { padding: 9px 11px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.table th { background: #f9fafb; color: var(--muted); font-weight: 600; font-size: 12px; white-space: nowrap; }
.table-sm th, .table-sm td { padding: 6px 9px; font-size: 12px; }
.table tr:hover td { background: #fafbfc; }
.ops { white-space: nowrap; }
.ops .btn-link { margin-right: 8px; }

/* 表单 */
.form-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.form-item { flex: 1; min-width: 170px; }
.textarea { resize: vertical; min-height: 90px; }

/* 支付盒(后台充值) */
.pay-box { max-width: 620px; margin: 0 auto; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 26px; }
.pay-order-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 13px; }
.pay-amount { text-align: center; padding: 16px 0 6px; }
.amount-lg { font-size: 38px; font-weight: 800; color: var(--danger); line-height: 1.3; }
.pay-address { margin: 14px 0; }
.address-row { display: flex; gap: 10px; align-items: center; margin-top: 6px; }
.address-code { flex: 1; padding: 10px; background: #f9fafb; border: 1px dashed var(--border); border-radius: 8px; font-size: 12px; word-break: break-all; }
.pay-qr { text-align: center; margin: 12px 0; }
.pay-qr svg { border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.status-result { text-align: center; padding: 26px 10px; }
.status-result .btn { margin-top: 12px; }

/* 订单摘要/发货 */
.order-summary { margin-bottom: 14px; }
.order-summary-row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--border); font-size: 13px; }
.delivery-box { background: #f9fafb; border: 1px solid var(--border); border-radius: 8px; padding: 13px; white-space: pre-wrap; font-size: 13px; }

/* 套餐卡 */
.plan-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.plan-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 20px; text-align: center; }
.plan-card:hover { border-color: var(--primary); }
.plan-name { font-weight: 700; font-size: 16px; }
.plan-days { color: var(--muted); margin: 4px 0; }
.plan-price { font-size: 24px; font-weight: 800; color: var(--danger); margin: 8px 0 14px; }

/* 分页 */
.pagination { display: flex; gap: 12px; align-items: center; justify-content: center; margin-top: 20px; color: var(--muted); font-size: 13px; }

/* 登录页 */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: #f1f5f9; }
.login-box { width: 360px; max-width: 92vw; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 30px; }
.login-box h1 { font-size: 20px; text-align: center; margin-bottom: 20px; }
.login-box .form-item { margin-bottom: 14px; }

/* 响应式 */
@media (max-width: 860px) {
    .admin-shell { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: static; flex-direction: row; overflow-x: auto; }
    .sidebar-brand { display: none; }
    .sidebar-nav { display: flex; padding: 0; }
    .sidebar-nav a { border-left: none; border-bottom: 2px solid transparent; white-space: nowrap; padding: 12px 14px; }
    .sidebar-nav a.active { border-bottom-color: var(--primary); }
    .form-item { min-width: 100%; }
}