/* ecom-kb web admin — 深色侧边栏 + 浅色内容区（手写 CSS，无外部依赖） */
:root {
  --side-bg: #1a1d23; --side-fg: #cbd5e1; --side-active: #3b82f6;
  --bg: #f5f6f8; --card: #ffffff; --border: #e5e7eb;
  --fg: #1f2937; --muted: #6b7280;
  --blue: #3b82f6; --blue-d: #2563eb;
  --green: #16a34a; --amber: #d97706; --red: #dc2626;
  --radius: 8px;
  --mono: "SF Mono", Menlo, Consolas, "JetBrains Mono", monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0; font: 14px/1.65 -apple-system, "PingFang SC", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  color: var(--fg); background: var(--bg);
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 20px 0 10px; }
h3 { font-size: 14px; margin: 16px 0 8px; }
code, pre { font-family: var(--mono); font-size: 13px; }
pre { background: #0f172a; color: #e2e8f0; padding: 12px; border-radius: var(--radius);
      overflow: auto; }

/* ---- 布局 ---- */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: 220px; background: var(--side-bg);
  color: var(--side-fg); display: flex; flex-direction: column; padding: 18px 0;
}
.brand { font-size: 17px; font-weight: 700; color: #fff; padding: 0 20px 14px;
         letter-spacing: .5px; }
.brand span { color: var(--blue); }
.sidebar nav { flex: 1; overflow-y: auto; }
.sidebar nav a {
  display: block; padding: 8px 20px; color: var(--side-fg); font-size: 13.5px;
}
.sidebar nav a:hover { background: #232833; text-decoration: none; }
.sidebar nav a.active { color: #fff; background: var(--side-active);
                        border-radius: 0; box-shadow: inset 3px 0 0 #93c5fd; }
.side-user { padding: 12px 20px 0; border-top: 1px solid #2b3240; font-size: 13px; }
.su-name { color: #fff; display: flex; gap: 8px; align-items: center; }
.su-links { color: #64748b; margin-top: 4px; }
.su-links a { color: #94a3b8; }
.content { margin-left: 220px; padding: 24px 28px 60px; max-width: 1200px; }

/* ---- 卡片/统计 ---- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
        padding: 16px 18px; margin-bottom: 16px;
        box-shadow: 0 1px 2px rgba(16, 24, 40, .04); }
.grid { display: grid; gap: 12px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 12.5px; }
.page-head { display: flex; justify-content: space-between; align-items: center;
             margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.page-head h1 { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.mono { font-family: var(--mono); font-size: 12.5px; }

/* ---- 表格 ---- */
table.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border);
                   vertical-align: top; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12.5px; white-space: nowrap; }
.tbl tr:hover td { background: #f8fafc; }

/* ---- 徽章/按钮/表单 ---- */
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px;
         border: 1px solid transparent; white-space: nowrap; }
.b-green { background: #dcfce7; color: #15803d; }
.b-gray  { background: #f1f5f9; color: #475569; }
.b-orange{ background: #ffedd5; color: #c2410c; }
.b-amber { background: #fef3c7; color: #b45309; }
.b-blue  { background: #dbeafe; color: #1d4ed8; }
.b-red   { background: #fee2e2; color: #b91c1c; }
.btn { display: inline-block; padding: 6px 14px; border-radius: 6px; border: 1px solid var(--blue);
       background: var(--blue); color: #fff; font-size: 13.5px; cursor: pointer; }
.btn:hover { background: var(--blue-d); text-decoration: none; }
.btn.ghost { background: #fff; color: var(--fg); border-color: var(--border); }
.btn.ghost:hover { background: #f8fafc; }
.btn.danger { background: #fff; color: var(--red); border-color: #fca5a5; }
.btn.danger:hover { background: #fef2f2; }
.btn.sm { padding: 2px 9px; font-size: 12.5px; }
form.inline { display: inline; }
button.linklike { background: none; border: 0; color: var(--blue); cursor: pointer;
                  font: inherit; padding: 0; }
button.linklike:hover { text-decoration: underline; }
.form label { display: block; font-weight: 600; margin: 12px 0 4px; }
.form input[type=text], .form input[type=password], .form input[type=url],
.form input[type=date], .form select, .form textarea {
  width: 100%; max-width: 640px; padding: 7px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; background: #fff;
}
.form textarea { min-height: 320px; font-family: var(--mono); font-size: 13px; }
.form .hint { color: var(--muted); font-size: 12.5px; margin-top: 3px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }

/* ---- 浏览页 ---- */
.browse-wrap { display: grid; grid-template-columns: 240px 1fr; gap: 16px; align-items: start; }
.tree a { display: flex; justify-content: space-between; padding: 5px 10px;
          border-radius: 6px; color: var(--fg); font-size: 13.5px; }
.tree a:hover { background: #eef2ff; text-decoration: none; }
.tree a.active { background: #dbeafe; color: #1d4ed8; font-weight: 600; }
.tree .cnt { color: var(--muted); font-size: 12px; }
.tree .sub { margin-left: 14px; }
.rowline { display: flex; align-items: baseline; gap: 10px; padding: 9px 4px;
           border-bottom: 1px solid var(--border); }
.rowline:hover { background: #f8fafc; }
.rowline .t { flex: 1; min-width: 200px; }

/* ---- 知识卡渲染 ---- */
.card-body { max-width: 860px; line-height: 1.8; }
.card-body table { border-collapse: collapse; }
.card-body th, .card-body td { border: 1px solid var(--border); padding: 4px 10px; }
.kv { width: 100%; border-collapse: collapse; max-width: 520px; }
.kv td { padding: 3px 8px; border-bottom: 1px dashed var(--border); }
.kv td:first-child { color: var(--muted); width: 110px; }

/* ---- 登录 ---- */
.login-bg { min-height: 100vh; display: flex; align-items: center; justify-content: center;
            background: linear-gradient(135deg, #1a1d23 0%, #1e3a5f 100%); }
.login-box { background: #fff; border-radius: 12px; padding: 34px 38px; width: 360px;
             box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.login-box h1 { text-align: center; }

/* ---- toast / 提示 ---- */
.toast { position: fixed; right: 24px; top: 20px; max-width: 460px; padding: 10px 16px;
         border-radius: 8px; color: #fff; font-size: 13.5px; display: none; z-index: 99;
         box-shadow: 0 8px 24px rgba(0,0,0,.18); word-break: break-all; }
.toast.ok { background: #166534; display: block; }
.toast.err { background: #991b1b; display: block; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13.5px; }
.flash.ok { background: #dcfce7; color: #166534; }
.flash.err { background: #fee2e2; color: #991b1b; word-break: break-all; }

/* ---- diff ---- */
pre.diff { font-size: 12.5px; line-height: 1.55; }
pre.diff .add { color: #4ade80; }
pre.diff .del { color: #f87171; }

/* ---- vnc ---- */
.vnc-wrap { display: flex; flex-direction: column; height: calc(100vh - 48px); }
.vnc-frame { flex: 1; border: 1px solid var(--border); border-radius: var(--radius);
             overflow: hidden; background: #0f172a; }
.vnc-frame iframe { width: 100%; height: 100%; border: 0; }
.vnc-bar { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }

@media (max-width: 980px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .browse-wrap { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
}