/* 运营后台样式 —— 简洁清晰、低密度 */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif; background: #f4f5f7; color: #1f2329; }
#app { min-height: 100%; }

/* ----------- 登录 ---------- */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { width: 380px; padding: 36px 32px; background: #fff; border-radius: 12px; box-shadow: 0 8px 32px rgba(0,0,0,.06); }
.login-card h1 { font-size: 22px; margin-bottom: 4px; color: #18191c; }
.login-card .sub { color: #86909c; font-size: 13px; margin-bottom: 24px; }
.login-card label { display: block; font-size: 12px; color: #4e5969; margin-bottom: 6px; margin-top: 14px; }
.login-card input { width: 100%; padding: 10px 12px; font-size: 14px; border: 1px solid #c9cdd4; border-radius: 6px; outline: none; }
.login-card input:focus { border-color: #1d7dfa; }
.login-card button { width: 100%; margin-top: 22px; padding: 11px; font-size: 14px; background: #1d7dfa; color: #fff; border: none; border-radius: 6px; cursor: pointer; }
.login-card button:disabled { background: #b5cffb; cursor: wait; }
.login-card .hint { margin-top: 14px; font-size: 12px; color: #86909c; line-height: 1.6; }
.login-card .err { color: #f53f3f; font-size: 12px; margin-top: 10px; min-height: 16px; }

/* ----------- 主布局 ---------- */
.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: 200px; background: #1d2129; color: #c9cdd4; padding: 24px 0; flex-shrink: 0; }
.sidebar .brand { padding: 0 24px 18px; font-size: 16px; font-weight: 600; color: #fff; border-bottom: 1px solid #2c313a; margin-bottom: 12px; }
.sidebar .brand small { display: block; font-size: 11px; color: #86909c; font-weight: 400; margin-top: 2px; }
.nav-item { padding: 10px 24px; font-size: 13px; cursor: pointer; border-left: 3px solid transparent; }
.nav-item:hover { background: #2c313a; color: #fff; }
.nav-item.active { background: #2c313a; color: #fff; border-left-color: #1d7dfa; }
.sidebar .user { position: absolute; bottom: 0; left: 0; right: 0; padding: 16px 24px; border-top: 1px solid #2c313a; font-size: 12px; }
.sidebar .user b { color: #fff; font-weight: 500; }
.sidebar .user button { margin-top: 8px; background: transparent; border: 1px solid #4e5969; color: #c9cdd4; padding: 4px 10px; border-radius: 4px; font-size: 11px; cursor: pointer; }

.main { flex: 1; padding: 24px 32px; overflow-y: auto; }
.main h2 { font-size: 18px; margin-bottom: 16px; color: #1f2329; }
.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 14px; }
.toolbar select, .toolbar button { padding: 6px 12px; border: 1px solid #c9cdd4; border-radius: 4px; background: #fff; cursor: pointer; font-size: 13px; }
.toolbar button.primary { background: #1d7dfa; color: #fff; border-color: #1d7dfa; }
.toolbar button.danger { background: #f53f3f; color: #fff; border-color: #f53f3f; }

/* ----------- KPI 看板 ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 20px; }
.kpi-card { background: #fff; padding: 18px; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.kpi-card .label { font-size: 12px; color: #86909c; margin-bottom: 6px; }
.kpi-card .value { font-size: 22px; font-weight: 600; color: #1d7dfa; }
.kpi-card.alt .value { color: #ff7d00; }
.kpi-card.warn .value { color: #f53f3f; }
.recent { background: #fff; padding: 16px 20px; border-radius: 8px; }
.recent h3 { font-size: 14px; margin-bottom: 10px; color: #4e5969; }
.recent ul { list-style: none; }
.recent li { font-size: 13px; padding: 5px 0; border-bottom: 1px dashed #e5e6eb; display: flex; justify-content: space-between; }
.recent li:last-child { border-bottom: 0; }
.recent li small { color: #86909c; }

/* ----------- 表格 ---------- */
.table-wrap { background: #fff; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.04); overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { background: #fafbfc; text-align: left; padding: 10px 14px; color: #4e5969; font-weight: 500; border-bottom: 1px solid #e5e6eb; }
td { padding: 10px 14px; border-bottom: 1px solid #f2f3f5; }
tr:hover td { background: #fafbfc; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; }
.badge.pending { background: #fff7e8; color: #ff7d00; }
.badge.approved, .badge.success { background: #e8ffea; color: #00b42a; }
.badge.rejected, .badge.fail { background: #ffece8; color: #f53f3f; }
.empty { padding: 60px 20px; text-align: center; color: #86909c; font-size: 13px; }
.action-cell { display: flex; gap: 6px; }
.action-cell button { padding: 4px 10px; font-size: 12px; border-radius: 4px; border: 1px solid; cursor: pointer; background: #fff; }
.action-cell .approve { color: #00b42a; border-color: #00b42a; }
.action-cell .reject { color: #f53f3f; border-color: #f53f3f; }
.action-cell .on { color: #00b42a; border-color: #00b42a; }
.action-cell .off { color: #86909c; border-color: #c9cdd4; }
.action-cell button:hover { opacity: .8; }

.dialog-bg { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: flex; align-items: center; justify-content: center; }
.dialog { background: #fff; border-radius: 8px; padding: 24px; width: 380px; }
.dialog h3 { font-size: 15px; margin-bottom: 14px; }
.dialog textarea { width: 100%; padding: 8px 10px; border: 1px solid #c9cdd4; border-radius: 4px; resize: vertical; min-height: 80px; font-size: 13px; }
.dialog .actions { margin-top: 16px; display: flex; gap: 8px; justify-content: flex-end; }
.dialog .actions button { padding: 6px 16px; border-radius: 4px; border: 1px solid; cursor: pointer; font-size: 13px; }
.dialog .actions .ok { background: #1d7dfa; color: #fff; border-color: #1d7dfa; }
.dialog .actions .cancel { background: #fff; color: #4e5969; border-color: #c9cdd4; }

.muted { color: #86909c; font-size: 12px; }
.server-time { position: fixed; bottom: 16px; right: 24px; color: #86909c; font-size: 11px; }