:root{
  --ink:#16202e; --ink2:#4a5a70; --muted:#8a97a8;
  --line:#e3e8ee; --bg:#f4f6fa; --paper:#fff;
  --brand:#0b4f8a; --brand2:#1a7fc1; --accent:#c8102e;
  --ok:#0f9d58;
  --sans:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Segoe UI",sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--sans);overflow:hidden}

/* ---------- 顶栏 ---------- */
.topbar{height:56px;display:flex;align-items:center;gap:22px;padding:0 20px;
  background:#fff;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:baseline;gap:10px}
.logo{font-weight:800;font-size:17px;letter-spacing:.4px;color:var(--brand)}
.sub{font-size:12px;color:var(--muted)}
.stats{display:flex;gap:18px;font-size:12px;color:var(--muted)}
.stats b{color:var(--ink);font-weight:650}
.actions{margin-left:auto;display:flex;gap:8px}

/* ---------- 按钮 ---------- */
.btn{height:32px;padding:0 14px;border-radius:7px;border:1px solid var(--line);
  background:#fff;color:var(--ink2);font:inherit;font-size:13px;cursor:pointer;transition:.15s}
a.btn{display:inline-flex;align-items:center;text-decoration:none;line-height:1}
.btn:hover{border-color:#c9d6e5;color:var(--ink)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border:0;color:#fff;font-weight:600}
.btn.primary:hover{filter:brightness(1.06)}
.btn.danger{color:var(--accent);border-color:#f0ccd4}
.btn.danger:hover{background:#fdf0f3}
.btn.ghost{background:transparent}

/* ---------- 布局 ---------- */
.layout{display:flex;height:calc(100vh - 56px)}
.list{width:340px;flex:0 0 340px;border-right:1px solid var(--line);background:#fbfcfe;
  display:flex;flex-direction:column;min-height:0}
.search{padding:12px 12px 8px}
.search input{width:100%;height:32px;padding:0 10px;border:1px solid var(--line);border-radius:7px;
  font:inherit;font-size:13px;outline:none}
.search input:focus{border-color:var(--brand2);box-shadow:0 0 0 3px rgba(26,127,193,.1)}
.filters{display:flex;gap:6px;flex-wrap:wrap;padding:0 12px 10px}
.chip{height:24px;padding:0 10px;border-radius:99px;border:1px solid var(--line);background:#fff;
  color:var(--muted);font-size:11.5px;cursor:pointer}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}
.items{flex:1;overflow-y:auto;padding:4px 8px 20px}
.item{padding:9px 10px;border-radius:8px;cursor:pointer;border:1px solid transparent;margin-bottom:2px}
.item:hover{background:#eef4fb}
.item.active{background:#e4eef8;border-color:#c9dcef}
.item b{display:block;font-size:13px;font-weight:600;line-height:1.4;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.item span{font-size:11px;color:var(--muted)}

/* ---------- 编辑器 ---------- */
.editor{flex:1;min-width:0;overflow-y:auto;padding:22px 26px}
.empty{height:100%;display:grid;place-items:center;color:var(--muted);font-size:13px}
.form{max-width:1080px;margin:0 auto}
.form-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:14px}
.form-title{flex:1;min-width:0}
.title-input{width:100%;border:0;background:transparent;font:600 22px/1.4 var(--sans);
  color:var(--ink);outline:none;padding:2px 0;border-bottom:1px solid transparent}
.title-input:focus{border-bottom-color:var(--brand2)}
.title-en{width:100%;border:0;background:transparent;font:400 13px/1.5 var(--sans);
  color:var(--muted);outline:none;padding:6px 0}
.form-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:0 0 auto}
.badge{font-size:11px;padding:2px 9px;border-radius:99px;background:#eef3f9;color:var(--brand)}
.save-state{font-size:11.5px;color:var(--muted)}
.save-state.dirty{color:#c77700}
.save-state.saved{color:var(--ok)}

.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px}
label{display:flex;flex-direction:column;gap:5px;font-size:11.5px;color:var(--muted)}
label.full{grid-column:1 / -1}
input[type=text],input[type=date],input[type=url],select,textarea{
  width:100%;border:1px solid var(--line);border-radius:7px;background:#fff;
  font:inherit;font-size:13px;color:var(--ink);outline:none;padding:7px 9px}
input:focus,select:focus,textarea:focus{border-color:var(--brand2);box-shadow:0 0 0 3px rgba(26,127,193,.1)}
textarea{resize:vertical;line-height:1.75;min-height:160px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}

.tabs{display:flex;gap:4px;margin:4px 0 10px;border-bottom:1px solid var(--line)}
.tab{border:0;background:transparent;padding:7px 14px;font:inherit;font-size:13px;color:var(--muted);
  cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tab.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}

.json{background:#0f172a;color:#c9d6ea;padding:16px;border-radius:9px;font-family:Consolas,monospace;
  font-size:11.5px;line-height:1.6;max-height:56vh;overflow:auto;white-space:pre-wrap;word-break:break-word}

.form-foot{display:flex;align-items:center;gap:8px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.form-foot .hint{margin-left:auto;font-size:11.5px;color:var(--muted)}

/* ---------- 提示 ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,14px);
  background:#16202e;color:#fff;padding:9px 18px;border-radius:8px;font-size:13px;
  opacity:0;pointer-events:none;transition:.2s}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.bad{background:#a4162f}

@media (max-width:900px){
  .layout{flex-direction:column}
  .list{width:100%;flex:0 0 220px;border-right:0;border-bottom:1px solid var(--line)}
  .grid{grid-template-columns:1fr 1fr}
  .two{grid-template-columns:1fr}
}