/* 企业资产管理系统 — 深色侧边栏 + 浅色内容区 */
:root {
  --sidebar-bg: #1c2333;
  --sidebar-hover: #263049;
  --active-bg: #1e3a8a;
  --active-text: #ffffff;
  --side-text: #b8c2d8;
  --accent: #1e3a8a;
  --accent-light: #e8edf9;
  --bg: #f4f6fa;
  --card: #ffffff;
  --border: #e3e8f0;
  --text: #1f2937;
  --text-sub: #6b7280;
  --danger: #c0392b;
  --ok: #1e7e4e;
  --warn: #b45309;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
.hidden { display: none !important; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #1c2333 0%, #223055 55%, #1e3a8a 100%); }
.login-card { width: 360px; background: #fff; border-radius: 12px; padding: 40px 36px 30px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.login-logo { font-size: 22px; font-weight: 700; color: var(--accent); text-align: center; }
.login-sub { font-size: 12px; color: var(--text-sub); text-align: center; margin: 6px 0 26px; }
.login-error { color: var(--danger); font-size: 13px; margin-top: 12px; min-height: 18px; text-align: center; }

/* ---------- 布局 ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar-bg); color: var(--side-text); position: fixed; top: 0; bottom: 0; left: 0;
  display: flex; flex-direction: column; }
.brand { font-size: 18px; font-weight: 700; color: #fff; padding: 22px 24px 18px; letter-spacing: 2px; border-bottom: 1px solid rgba(255,255,255,.08); }
#nav-menu { flex: 1; padding: 12px 0; overflow-y: auto; }
.nav-item { display: block; padding: 12px 24px; color: var(--side-text); text-decoration: none; font-size: 14px;
  border-left: 3px solid transparent; cursor: pointer; }
.nav-item:hover { background: var(--sidebar-hover); color: #fff; }
.nav-item.active { background: var(--active-bg); color: var(--active-text); border-left-color: #93b4ff; }
.nav-sep { margin: 10px 24px 4px; font-size: 11px; color: #5b6780; letter-spacing: 1px; }
.sidebar-foot { padding: 14px 16px 18px; border-top: 1px solid rgba(255,255,255,.08); }
.side-user { font-size: 13px; color: #e2e8f4; margin-bottom: 10px; line-height: 1.5; }
.side-user .role-tag { font-size: 11px; color: #93b4ff; }

.main { flex: 1; margin-left: 220px; display: flex; flex-direction: column; }
.topbar { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 28px; position: sticky; top: 0; z-index: 5; }
.topbar h1 { font-size: 17px; font-weight: 600; }
.content { padding: 24px 28px 60px; }

/* ---------- 通用组件 ---------- */
.btn { display: inline-block; border: 1px solid transparent; border-radius: 6px; padding: 8px 16px; font-size: 13px;
  cursor: pointer; background: #eef1f6; color: var(--text); }
.btn:hover { filter: brightness(.96); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-danger { background: #fdecea; color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 5px; }
.btn-block { display: block; width: 100%; }
.btn-ghost { background: transparent; border: 1px solid rgba(255,255,255,.25); color: var(--side-text); }
.btn-ghost:hover { background: rgba(255,255,255,.08); color: #fff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 18px; }
.card h3 { font-size: 14px; margin-bottom: 14px; color: var(--text); }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.toolbar .grow { flex: 1; }
.toolbar input, .toolbar select { height: 34px; }

input, select, textarea { border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; font-size: 13px;
  font-family: inherit; background: #fff; color: var(--text); outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); }

table.grid { width: 100%; border-collapse: collapse; background: #fff; }
table.grid th, table.grid td { border-bottom: 1px solid var(--border); padding: 10px 12px; text-align: left; font-size: 13px; vertical-align: middle; }
table.grid th { background: #f8fafd; color: var(--text-sub); font-weight: 600; white-space: nowrap; }
table.grid tr:hover td { background: #f8faff; }
.table-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow-x: auto; }
.table-wrap { overflow-x: auto; }
.muted { color: var(--text-sub); }
.small { font-size: 12px; }
.mono { font-family: Consolas, monospace; }
.mt { margin-top: 14px; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.badge-ok { background: #e6f5ec; color: var(--ok); }
.badge-warn { background: #fdf3e3; color: var(--warn); }
.badge-info { background: var(--accent-light); color: var(--accent); }
.badge-gray { background: #eef1f6; color: var(--text-sub); }
.badge-danger { background: #fdecea; color: var(--danger); }

/* ---------- 仪表盘 ---------- */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 18px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; }
.stat-card .label { font-size: 12px; color: var(--text-sub); }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--accent); margin-top: 6px; }
.stat-card .sub { font-size: 12px; color: var(--text-sub); margin-top: 4px; }
.dash-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 980px) { .dash-grid { grid-template-columns: 1fr; } }
.bar-row { display: flex; align-items: center; gap: 10px; margin: 8px 0; }
.bar-row .bar-name { width: 90px; font-size: 12px; color: var(--text-sub); text-align: right; flex-shrink: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row .bar-track { flex: 1; height: 16px; background: #eef1f6; border-radius: 8px; overflow: hidden; }
.bar-row .bar-fill { height: 100%; background: var(--accent); border-radius: 8px; min-width: 2px; }
.bar-row .bar-val { width: 130px; font-size: 12px; flex-shrink: 0; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.form-item label { display: block; font-size: 12px; color: var(--text-sub); margin-bottom: 5px; }
.form-item input, .form-item select, .form-item textarea { width: 100%; }
.form-item.full { grid-column: 1 / -1; }
.req::after { content: " *"; color: var(--danger); }
.img-preview { max-width: 120px; max-height: 90px; border-radius: 6px; border: 1px solid var(--border); margin-top: 6px; display: block; }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 50; display: flex; align-items: flex-start;
  justify-content: center; padding: 60px 20px; overflow-y: auto; }
.modal { background: #fff; border-radius: 12px; width: 640px; max-width: 100%; padding: 24px 26px; box-shadow: 0 24px 70px rgba(0,0,0,.3); }
.modal.wide { width: 860px; }
.modal h2 { font-size: 16px; margin-bottom: 18px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }

/* ---------- Toast ---------- */
#toast-wrap { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 99; display: flex; flex-direction: column; gap: 8px; }
.toast { background: #1f2937; color: #fff; padding: 10px 18px; border-radius: 8px; font-size: 13px; box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.toast.err { background: var(--danger); }

/* ---------- 其他 ---------- */
.pager { display: flex; align-items: center; gap: 12px; justify-content: flex-end; margin-top: 14px; font-size: 13px; color: var(--text-sub); }
.base-row { display: flex; align-items: center; justify-content: space-between; padding: 9px 4px; border-bottom: 1px dashed var(--border); }
.base-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.upload-inline { display: inline-block; }
input[type="file"] { font-size: 12px; }
.check-select { width: 74px; }
textarea { resize: vertical; min-height: 64px; }
@media (max-width: 760px) {
  .sidebar { width: 64px; }
  .brand { font-size: 12px; padding: 18px 8px; text-align: center; }
  .nav-item { padding: 12px 0; text-align: center; font-size: 12px; }
  .nav-sep, .side-user { display: none; }
  .main { margin-left: 64px; }
  .form-grid { grid-template-columns: 1fr; }
}

/* 图片页内预览（lightbox）：全屏遮罩，点空白处关闭 */
.img-viewer { position: fixed; inset: 0; background: rgba(0,0,0,.86); z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: zoom-out; }
.img-viewer.hidden { display: none; }
.iv-main { max-width: 90vw; max-height: 78vh; object-fit: contain; border-radius: 6px;
  box-shadow: 0 10px 50px rgba(0,0,0,.6); cursor: default; background: #111; }
.iv-thumbs { display: flex; gap: 8px; margin-top: 14px; max-width: 90vw; overflow-x: auto; padding: 4px; }
.iv-thumbs img { width: 64px; height: 64px; object-fit: cover; border-radius: 4px; cursor: pointer;
  opacity: .55; border: 2px solid transparent; }
.iv-thumbs img.on { opacity: 1; border-color: #fff; }
.iv-close { position: absolute; top: 16px; right: 26px; color: #fff; font-size: 36px; line-height: 1;
  cursor: pointer; user-select: none; opacity: .85; }
.iv-close:hover { opacity: 1; }