:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --border: #e6e8eb;
  --text: #1f2329;
  --muted: #8a9099;
  --primary: #2f6fed;
  --primary-d: #2257c4;
  --danger: #e5484d;
  --ok: #2f9e44;
  --warn: #f08c00;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}
.hidden { display: none !important; }
a { color: inherit; text-decoration: none; }

/* 登录 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #eef2ff, #f6f7f9); }
.login-card { width: 340px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 32px 28px; box-shadow: var(--shadow); }
.login-title { margin: 0 0 4px; font-size: 20px; }
.login-sub { margin: 0 0 20px; color: var(--muted); }
.login-tip { margin: 14px 0 0; font-size: 12px; color: var(--muted); text-align: center; }

/* 布局 */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 210px; background: var(--panel); border-right: 1px solid var(--border); padding: 18px 12px; flex-shrink: 0; }
.brand { font-weight: 700; font-size: 16px; padding: 6px 10px 16px; }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item { padding: 9px 12px; border-radius: 8px; color: #4b5159; cursor: pointer; }
.nav-item:hover { background: #f0f2f5; }
.nav-item.active { background: #eaf0ff; color: var(--primary); font-weight: 600; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar { height: 56px; background: var(--panel); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 22px; }
.topbar-title { font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user { color: var(--muted); }
.view { padding: 22px; flex: 1; overflow: auto; }

/* 通用 */
.btn { border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; }
.btn:hover { border-color: #cdd2d8; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); border-color: var(--primary-d); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--muted); }
.btn-ghost:hover { color: var(--text); background: #f0f2f5; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.input, textarea.input, select.input { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 9px 11px; font-size: 14px; font-family: inherit; background: #fff; color: var(--text); }
.input:focus { outline: none; border-color: var(--primary); }
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 13px; color: #5b626b; margin-bottom: 6px; }
.form-error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 8px 0 0; }
.form-ok { color: var(--ok); font-size: 13px; }

/* 卡片 */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.grid { display: grid; gap: 14px; }
.stats { grid-template-columns: repeat(5, 1fr); }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 13px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spread { justify-content: space-between; }
.section-title { font-size: 17px; font-weight: 700; margin: 0 0 14px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
th { background: #fafbfc; color: #5b626b; font-weight: 600; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafbfc; }
.tag { display: inline-block; background: #eef1f5; color: #4b5159; border-radius: 6px; padding: 1px 8px; margin: 2px 4px 2px 0; font-size: 12px; }

/* 徽章 */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; }
.badge-draft { background: #fff3bf; color: #9a6700; }
.badge-pub { background: #d3f9d8; color: #2b8a3e; }
.badge-synced { background: #e7f5ff; color: #1971c2; }
.badge-failed { background: #ffe3e3; color: #c92a2a; }
.badge-local { background: #f1f3f5; color: #868e96; }

/* 编辑器 */
.editor-grid { display: grid; grid-template-columns: 320px 1fr; gap: 18px; align-items: start; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: #eaf0ff; color: var(--primary); border-radius: 6px; padding: 3px 8px; font-size: 13px; }
.chip button { border: none; background: none; color: var(--primary); cursor: pointer; font-size: 14px; line-height: 1; padding: 0; }
.chip-input { border: 1px dashed var(--border); border-radius: 6px; padding: 5px 8px; width: 140px; font-size: 13px; }
.EasyMDEContainer { box-shadow: var(--shadow); border-radius: 8px; overflow: hidden; }
.CodeMirror { min-height: 460px; }
.editor-actions { margin-top: 14px; display: flex; gap: 10px; }

/* 图片 */
.img-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.img-card { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; }
.img-card img { width: 100%; height: 130px; object-fit: cover; display: block; background: #f1f3f5; }
.img-card .meta { padding: 8px 10px; font-size: 12px; color: var(--muted); }
.img-card .acts { display: flex; gap: 6px; padding: 0 10px 10px; }

/* 帮助 */
.help h2 { font-size: 17px; margin: 22px 0 8px; }
.help h3 { font-size: 15px; margin: 16px 0 6px; }
.help p, .help li { color: #3a4049; }
.help code { background: #f1f3f5; padding: 1px 6px; border-radius: 5px; font-size: 13px; }
.help pre { background: #1f2329; color: #e6e8eb; padding: 14px; border-radius: 8px; overflow: auto; font-size: 13px; }

/* 分页 */
.pager { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.muted { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%); background: #1f2329; color: #fff; padding: 10px 18px; border-radius: 999px; font-size: 14px; box-shadow: var(--shadow); z-index: 50; }

@media (max-width: 860px) {
  .sidebar { width: 64px; padding: 14px 8px; }
  .nav-item { font-size: 0; padding: 10px; }
  .nav-item::first-letter { font-size: 14px; }
  .brand { font-size: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .editor-grid { grid-template-columns: 1fr; }
  .view { padding: 14px; }
}