:root {
  --brand: #2563eb;
  --brand-weak: color-mix(in srgb, var(--brand) 12%, transparent);
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1e222b;
  --border: #262b36;
  --text: #e6e9ef;
  --muted: #9aa3b2;
  --ok: #22c55e;
  --warn: #f59e0b;
  --err: #ef4444;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6;
}
a { color: var(--brand); text-decoration: none; }

.layout { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }

/* ---------- 侧边栏 ---------- */
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 18px 12px; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 18px; }
.brand img { width: 30px; height: 30px; border-radius: 7px; object-fit: cover; }
.brand .logo-fallback { width: 30px; height: 30px; border-radius: 7px; background: var(--brand); display: grid; place-items: center; font-weight: 700; }
.brand-name { font-weight: 600; font-size: 15px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav button {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 10px;
  background: none; border: 0; color: var(--muted); border-radius: 8px;
  cursor: pointer; font-size: 14px; text-align: left; font-family: inherit;
}
.nav button:hover { background: var(--surface-2); color: var(--text); }
.nav button.active { background: var(--brand-weak); color: var(--brand); font-weight: 500; }
.sidebar-foot { margin-top: auto; padding: 12px 8px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; }

/* ---------- 主区域 ---------- */
.main { padding: 26px 30px; max-width: 1200px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
h1 { font-size: 22px; font-weight: 600; }
.subtitle { color: var(--muted); font-size: 13px; margin-top: 2px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.card + .card { margin-top: 14px; }
.card h2 { font-size: 15px; font-weight: 600; margin-bottom: 14px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px;
  background: var(--brand); color: #fff; border: 0; border-radius: 8px;
  cursor: pointer; font-size: 13px; font-family: inherit; font-weight: 500;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--err); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- 表单 ---------- */
label { display: block; margin-bottom: 12px; }
label > span { display: block; margin-bottom: 5px; color: var(--muted); font-size: 12px; }
input, select, textarea {
  width: 100%; padding: 9px 11px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); }
textarea { resize: vertical; min-height: 90px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hint { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* ---------- 表格与卡片列表 ---------- */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 9px 10px; color: var(--muted); font-weight: 500; font-size: 12px; border-bottom: 1px solid var(--border); }
td { padding: 11px 10px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: 0; }

.inbox-card {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 14px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 10px; flex-wrap: wrap;
}
.inbox-card .addr { font-weight: 500; font-size: 15px; }
.inbox-card .meta { color: var(--muted); font-size: 12px; margin-top: 3px; }

.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 20px; font-size: 12px; }
.badge.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.badge.err { background: color-mix(in srgb, var(--err) 15%, transparent); color: var(--err); }
.badge.muted { background: var(--surface); color: var(--muted); }
.badge.warn { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat .num { font-size: 26px; font-weight: 600; }
.stat .lbl { color: var(--muted); font-size: 12px; margin-top: 2px; }

/* ---------- 弹窗 ---------- */
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 50; padding: 20px; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; width: 100%; max-width: 520px; max-height: 88vh; overflow: auto; }
.modal-head { padding: 18px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-head h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.x { background: none; border: 0; color: var(--muted); font-size: 20px; cursor: pointer; line-height: 1; }

.msg-body { white-space: pre-wrap; word-break: break-word; line-height: 1.7; }
.empty { text-align: center; color: var(--muted); padding: 46px 20px; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--surface-2); border: 1px solid var(--border); padding: 11px 20px; border-radius: 9px; z-index: 100; box-shadow: 0 8px 26px rgba(0,0,0,.45); }
.toast.ok { border-color: var(--ok); }
.toast.err { border-color: var(--err); }
code { background: var(--bg); padding: 2px 6px; border-radius: 4px; font-size: 12px; font-family: ui-monospace, Menlo, monospace; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 13px; }

/* 登录状态：侧边栏隐藏，登录框在屏幕正中央 */
.main.solo {
  grid-column: 1 / -1;   /* 跨满两列，不给侧边栏留位 */
  max-width: none;       /* 关键：解除 1200px 宽度限制，否则居中基准偏左 */
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.main.solo .page-head { display: none; }
.login-box { width: 100%; max-width: 360px; }