/* ============================================================
   lingshi 灵石商城 · 后台样式
   ============================================================ */
:root {
    --ad-primary: #4f46e5;
    --ad-bg: #f1f3f9;
    --ad-text: #1f2937;
    --ad-muted: #6b7280;
    --ad-border: #e6e9f0;
    --ad-sidebar: #1e2536;
    --ad-danger: #dc2626;
    --ad-ok: #16a34a;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    font-size: 14px;
    color: var(--ad-text);
    background: var(--ad-bg);
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; border: 0; display: block; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; }
input, select, textarea, button { font-family: inherit; font-size: 14px; }
table { border-collapse: collapse; width: 100%; }

/* 布局 */
.ad-layout { display: flex; min-height: 100vh; }
.ad-side { width: 218px; flex: 0 0 218px; background: var(--ad-sidebar); color: #aeb6c8; display: flex; flex-direction: column; }
.ad-side .brand { display: flex; align-items: center; gap: 10px; padding: 18px 20px; border-bottom: 1px solid #2a3247; }
.ad-side .brand i { width: 30px; height: 30px; border-radius: 9px; background: linear-gradient(135deg, #6366f1, #a855f7); color: #fff; display: flex; align-items: center; justify-content: center; font-style: normal; font-weight: 700; }
.ad-side .brand b { color: #fff; font-size: 16px; letter-spacing: 1px; }
.ad-side .brand small { display: block; color: #7b869c; font-size: 11px; font-weight: 400; letter-spacing: 1px; }
.ad-menu { padding: 10px 0; flex: 1; overflow-y: auto; }
.ad-menu > li > a { display: flex; align-items: center; gap: 10px; padding: 11px 20px; color: #c3cadb; font-size: 14.5px; border-left: 3px solid transparent; }
.ad-menu > li > a:hover { background: #262e42; color: #fff; }
.ad-menu > li.on > a { background: #262e42; color: #fff; border-left-color: var(--ad-primary); }
.ad-menu .ico { width: 18px; text-align: center; opacity: .85; }
.ad-menu .sub { background: #1a2130; display: none; }
.ad-menu > li.on .sub { display: block; }
.ad-menu .sub a { display: block; padding: 9px 20px 9px 51px; font-size: 13.5px; color: #98a2b8; }
.ad-menu .sub a:hover, .ad-menu .sub a.on { color: #fff; background: #232b3c; }
.ad-side .foot { padding: 14px 20px; font-size: 12px; color: #6b7794; border-top: 1px solid #2a3247; }

.ad-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ad-head { background: #fff; border-bottom: 1px solid var(--ad-border); }
.ad-head .inner { display: flex; align-items: center; gap: 18px; padding: 0 22px; height: 58px; }
.ad-head .crumb { font-size: 13px; color: var(--ad-muted); }
.ad-head .crumb b { color: var(--ad-text); font-size: 15.5px; font-weight: 600; margin-right: 6px; }
.ad-head .right { margin-left: auto; display: flex; align-items: center; gap: 16px; font-size: 13.5px; }
.ad-head .right img { width: 30px; height: 30px; border-radius: 50%; }
.ad-body { padding: 20px 22px 34px; }

/* 卡片 */
.ad-card { background: #fff; border-radius: 12px; box-shadow: 0 2px 10px rgba(15, 23, 42, .05); padding: 18px 20px; margin-bottom: 18px; }
.ad-card.plain { padding: 0; overflow: hidden; }
.ad-card .hd { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.ad-card .hd h3 { font-size: 16px; }
.ad-card .hd .tools { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.ad-grid { display: grid; gap: 16px; }
.ad-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.ad-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.ad-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

/* 统计卡 */
.ad-stat { background: #fff; border-radius: 12px; box-shadow: 0 2px 10px rgba(15, 23, 42, .05); padding: 18px 20px; display: flex; flex-direction: column; gap: 4px; }
.ad-stat b { font-size: 26px; font-weight: 700; }
.ad-stat span { font-size: 13px; color: var(--ad-muted); }
.ad-stat .sub { font-size: 12px; color: #9aa3b2; }

/* 表格 */
.ad-table { width: 100%; background: #fff; }
.ad-table th { background: #f7f8fc; color: var(--ad-muted); font-weight: 600; font-size: 13px; text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--ad-border); white-space: nowrap; }
.ad-table td { padding: 12px 14px; border-bottom: 1px solid #f0f2f7; vertical-align: middle; }
.ad-table tr:hover td { background: #fafbff; }
.ad-table .goods-cell { display: flex; gap: 10px; align-items: center; }
.ad-table .goods-cell img { width: 52px; height: 52px; border-radius: 8px; object-fit: cover; background: #f1f5f9; flex: 0 0 52px; }
.ad-table .goods-cell .name { font-size: 13.5px; line-height: 1.4; max-width: 260px; }
.ad-table .muted { color: var(--ad-muted); font-size: 12.5px; }
.ad-table .ops { display: flex; gap: 8px; flex-wrap: wrap; }
.ad-table .thumb-sm { width: 46px; height: 46px; border-radius: 7px; object-fit: cover; }
.ad-empty { padding: 46px 10px; text-align: center; color: var(--ad-muted); background: #fff; }
.ad-empty b { display: block; font-size: 30px; color: #d9dde7; margin-bottom: 6px; }

/* 标签 */
.ad-tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; background: #eef2ff; color: var(--ad-primary); }
.ad-tag.gray { background: #f1f3f9; color: var(--ad-muted); }
.ad-tag.green { background: #ecfdf5; color: var(--ad-ok); }
.ad-tag.red { background: #fef2f2; color: var(--ad-danger); }
.ad-tag.orange { background: #fff7ed; color: #c2410c; }
.ad-tag.blue { background: #eff6ff; color: #1d4ed8; }

/* 按钮 */
.ad-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 34px; padding: 0 15px; border-radius: 8px; border: 1px solid var(--ad-border); background: #fff; cursor: pointer; font-size: 13.5px; transition: .18s; }
.ad-btn:hover { border-color: var(--ad-primary); color: var(--ad-primary); }
.ad-btn.primary { background: var(--ad-primary); border-color: var(--ad-primary); color: #fff; }
.ad-btn.primary:hover { background: #4338ca; color: #fff; }
.ad-btn.danger { background: #fff; border-color: #fecaca; color: var(--ad-danger); }
.ad-btn.danger:hover { background: #fef2f2; }
.ad-btn.lg { height: 42px; padding: 0 26px; font-size: 15px; }
.ad-btn.sm { height: 28px; padding: 0 11px; font-size: 12.5px; border-radius: 7px; }
.ad-btn.block { width: 100%; }
.ad-btn[disabled] { opacity: .6; cursor: not-allowed; }

/* 表单 */
.ad-form .item { margin-bottom: 16px; }
.ad-form > .item > label, .ad-label { display: block; font-size: 13px; color: var(--ad-muted); margin-bottom: 6px; }
.ad-form > .item > label .req, .ad-label .req { color: var(--ad-danger); margin-left: 3px; }
.ad-input, .ad-form input[type=text], .ad-form input[type=password], .ad-form input[type=number], .ad-form input[type=email], .ad-form input[type=date], .ad-form select, .ad-form textarea {
    width: 100%; height: 38px; padding: 0 12px; border: 1px solid #dfe3ea; border-radius: 9px; outline: none; background: #fff;
}
.ad-form textarea { height: auto; min-height: 100px; padding: 10px 12px; line-height: 1.7; resize: vertical; }
.ad-form input:focus, .ad-form select:focus, .ad-form textarea:focus, .ad-input:focus { border-color: var(--ad-primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .1); }
.ad-form .check { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; }
.ad-form .hint { font-size: 12px; color: #9aa3b2; margin-top: 5px; }
.ad-form-inline { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.ad-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ad-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.ad-fieldset { border: 1px solid var(--ad-border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.ad-fieldset > legend { font-size: 13.5px; color: var(--ad-muted); padding: 0 8px; }

/* 搜索条 */
.ad-search { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.ad-search .ad-input { width: 190px; }
.ad-search select { width: 150px; }

/* 规格编辑 */
.ad-sku-table td { padding: 7px 8px; }
.ad-sku-table input { height: 32px; padding: 0 9px; width: 100%; border: 1px solid #dfe3ea; border-radius: 7px; }
.ad-img-preview { width: 92px; height: 92px; border-radius: 10px; object-fit: cover; background: #f1f5f9; border: 1px solid var(--ad-border); display: block; }
.ad-img-list { display: flex; gap: 10px; flex-wrap: wrap; }
.ad-img-list .cell { width: 92px; }
.ad-img-list img { width: 92px; height: 92px; object-fit: cover; border-radius: 10px; border: 1px solid var(--ad-border); }

/* 分页 */
.ad-pager { display: flex; gap: 6px; justify-content: flex-end; padding: 14px 0 0; flex-wrap: wrap; }
.ad-pager a, .ad-pager span { min-width: 32px; height: 32px; line-height: 30px; text-align: center; padding: 0 10px; border: 1px solid var(--ad-border); border-radius: 8px; background: #fff; font-size: 13px; }
.ad-pager .on { background: var(--ad-primary); border-color: var(--ad-primary); color: #fff; }
.ad-pager .dis { color: #c4cad6; }

/* 详情页 */
.ad-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 20px; }
.ad-info div { display: flex; gap: 8px; padding: 7px 0; border-bottom: 1px dashed #f0f2f7; font-size: 13.5px; }
.ad-info span { color: var(--ad-muted); flex: 0 0 84px; }
.ad-steps { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12.5px; color: var(--ad-muted); background: #f7f8fc; border-radius: 10px; padding: 12px 14px; margin-bottom: 14px; }
.ad-steps b { color: var(--ad-text); font-weight: 500; }

/* 提示 */
.ad-notice { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; border-radius: 10px; padding: 10px 14px; font-size: 13px; margin-bottom: 14px; }
.ad-notice.warn { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.ls-toast { position: fixed; left: 50%; top: 18%; transform: translateX(-50%) translateY(-10px); z-index: 1000;
    max-width: 80vw; padding: 11px 22px; border-radius: 10px; background: #1f2430; color: #fff; font-size: 14px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, .25); opacity: 0; transition: opacity .18s, transform .18s; }
.ls-toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }
.ls-toast-ok { background: #047857; }
.ls-toast-error { background: #b91c1c; }
.ls-toast-info { background: #1f2430; }
.ls-toast-out { opacity: 0; transform: translateX(-50%) translateY(-10px); }
@keyframes adFade { from { opacity: 0; transform: translate(-50%, 10px); } }

/* 登录页 */
.ad-login { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #312e81, #4f46e5 45%, #7c3aed); padding: 20px; }
.ad-login .box { width: 100%; max-width: 380px; background: #fff; border-radius: 16px; padding: 30px 30px 32px; box-shadow: 0 24px 60px rgba(15, 23, 42, .28); }
.ad-login h1 { font-size: 20px; margin-bottom: 4px; }
.ad-login .sub { color: var(--ad-muted); font-size: 13px; margin-bottom: 22px; }
.ad-login .foot { margin-top: 18px; font-size: 12px; color: #9aa3b2; text-align: center; }

/* 移动端后台 */
@media (max-width: 860px) {
    .ad-layout { flex-direction: column; }
    .ad-side { width: 100%; flex: none; }
    .ad-menu { display: flex; flex-wrap: wrap; }
    .ad-menu > li { flex: 1 1 50%; }
    .ad-menu .sub { display: block; background: #1a2130; }
    .ad-menu .sub a { padding-left: 22px; }
    .ad-grid.cols-4, .ad-grid.cols-3, .ad-grid.cols-2 { grid-template-columns: 1fr; }
    .ad-2col, .ad-3col { grid-template-columns: 1fr; }
    .ad-body { padding: 14px 12px 26px; }
    .ad-card { padding: 14px; }
    .ad-table th, .ad-table td { padding: 9px 10px; }
}