/* =========================================================================
 * 后台管理系统样式（设备物联管理风格，橙色强调）
 * 布局：深色侧边栏 + 浅色内容区（参考物联平台）
 * ========================================================================= */

:root {
  --or: #ff8a1e;          /* 主橙 */
  --or-soft: #ffb24d;
  --or-deep: #e6760a;
  --side-bg: #131a26;     /* 侧栏深底（暖调）*/
  --side-bg2: #0e1420;
  --side-hover: rgba(255,138,30,.14);
  --content-bg: #f3f5f9;
  --card-bg: #ffffff;
  --txt: #2b3340;
  --txt-muted: #8a93a3;
  --bd: #e7ebf1;
  --ok: #19b36b;
  --off: #b3bbc7;
  --warn: #f0a200;
  --alarm: #f5503e;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: 'Microsoft YaHei','PingFang SC',system-ui,sans-serif; color: var(--txt); background: var(--content-bg); }
a { text-decoration: none; color: inherit; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #cdd5e0; border-radius: 8px; }

/* ===== 登录 ===== */
#login {
  position: fixed; inset: 0; z-index: 100; display: grid; place-items: center;
  background:
    radial-gradient(120% 90% at 80% 20%, rgba(255,138,30,.25), transparent 55%),
    linear-gradient(135deg, #0e1420, #1b2536 60%, #2a1c0c);
}
.login-card {
  width: 380px; padding: 36px 34px; border-radius: 16px;
  background: rgba(20,26,38,.86); border: 1px solid rgba(255,138,30,.3);
  box-shadow: 0 20px 60px rgba(0,0,0,.5); backdrop-filter: blur(8px); color: #e8edf4;
}
.login-card h2 { margin: 0 0 4px; font-size: 22px; background: linear-gradient(90deg,#ff8a1e,#ffd34e); -webkit-background-clip: text; background-clip: text; color: transparent; }
.login-card .sub { color: #8a93a3; font-size: 13px; margin-bottom: 26px; letter-spacing: 1px; }
.login-card label { display: block; font-size: 13px; color: #aab3c2; margin: 14px 0 6px; }
.login-card input {
  width: 100%; padding: 11px 14px; border-radius: 8px; font-size: 14px; color: #fff;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); outline: none;
}
.login-card input:focus { border-color: var(--or); box-shadow: 0 0 0 3px rgba(255,138,30,.18); }
.login-btn {
  width: 100%; margin-top: 24px; padding: 12px; border: 0; border-radius: 8px; cursor: pointer;
  font-size: 15px; font-weight: 700; color: #2a1500;
  background: linear-gradient(90deg,#ff7a00,#ffc24b);
}
.login-btn:hover { filter: brightness(1.06); }
.login-tip { margin-top: 16px; font-size: 12px; color: #6f7a8b; text-align: center; }
.login-err { color: #f5503e; font-size: 13px; margin-top: 12px; min-height: 18px; }

/* ===== 应用骨架 ===== */
#app { display: none; height: 100%; }
#app.show { display: grid; grid-template-columns: 220px 1fr; }

/* —— 侧边栏 —— */
.sidebar { background: linear-gradient(180deg, var(--side-bg), var(--side-bg2)); color: #c4ccd8; display: flex; flex-direction: column; overflow: hidden; }
.logo { display: flex; align-items: center; gap: 10px; padding: 18px 18px; font-size: 17px; font-weight: 800; color: #fff; border-bottom: 1px solid rgba(255,255,255,.06); }
.logo .mark { width: 26px; height: 26px; border-radius: 7px; background: linear-gradient(135deg,#ff7a00,#ffd34e); display: grid; place-items: center; color: #2a1500; font-size: 15px; }
.menu { flex: 1; overflow-y: auto; padding: 8px 0; }
.menu-item { display: flex; align-items: center; gap: 10px; padding: 11px 18px; font-size: 14px; cursor: pointer; color: #c4ccd8; border-left: 3px solid transparent; transition: .15s; }
.menu-item:hover { background: var(--side-hover); color: #fff; }
.menu-item.active { background: var(--side-hover); color: var(--or-soft); border-left-color: var(--or); font-weight: 600; }
.menu-item .mi-icon { width: 18px; text-align: center; opacity: .9; }
.menu-item .mi-arrow { margin-left: auto; font-size: 11px; transition: .2s; opacity: .6; }
.menu-group.open > .menu-item .mi-arrow { transform: rotate(90deg); }
.submenu { max-height: 0; overflow: hidden; transition: max-height .25s ease; background: rgba(0,0,0,.18); }
.menu-group.open .submenu { max-height: 320px; }
.submenu .menu-item { padding-left: 46px; font-size: 13px; }

/* —— 主区 —— */
.main { display: flex; flex-direction: column; min-width: 0; }
.topbar { height: 56px; background: #fff; border-bottom: 1px solid var(--bd); display: flex; align-items: center; padding: 0 18px; gap: 14px; }
.crumb { color: var(--txt-muted); font-size: 14px; }
.crumb b { color: var(--txt); }
.topbar .spacer { flex: 1; }
.top-tool { color: var(--txt-muted); font-size: 13px; cursor: pointer; display: flex; align-items: center; gap: 5px; }
.top-tool:hover { color: var(--or); }
.user { display: flex; align-items: center; gap: 8px; }
.user .avatar { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg,#ff7a00,#ffd34e); display: grid; place-items: center; color: #2a1500; font-weight: 700; }

.content { flex: 1; overflow-y: auto; padding: 16px; }

/* —— 卡片/面板通用 —— */
.panel { background: var(--card-bg); border: 1px solid var(--bd); border-radius: 10px; }
.panel + .panel { margin-top: 14px; }

/* —— 筛选条 —— */
.filter-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; padding: 16px; }
.field { display: flex; align-items: center; gap: 8px; }
.field label { font-size: 13px; color: var(--txt); white-space: nowrap; }
.field input, .field select { padding: 7px 10px; border: 1px solid var(--bd); border-radius: 6px; font-size: 13px; min-width: 150px; outline: none; }
.field input:focus, .field select:focus { border-color: var(--or); }
.btn2 { padding: 7px 16px; border-radius: 6px; font-size: 13px; cursor: pointer; border: 1px solid var(--bd); background: #fff; color: var(--txt); display: inline-flex; align-items: center; gap: 5px; }
.btn2:hover { border-color: var(--or); color: var(--or); }
.btn2.primary { background: linear-gradient(90deg,#ff7a00,#ffa31e); color: #fff; border: 0; }
.btn2.primary:hover { filter: brightness(1.05); color: #fff; }
.btn2.ghost { background: rgba(255,138,30,.08); border-color: rgba(255,138,30,.3); color: var(--or-deep); }

/* —— 操作条 —— */
.action-bar { display: flex; align-items: center; gap: 10px; padding: 0 16px 16px; flex-wrap: wrap; }
.action-bar .spacer { flex: 1; }
.checkbox { font-size: 13px; color: var(--txt-muted); display: flex; align-items: center; gap: 6px; cursor: pointer; }
.icon-btn { width: 32px; height: 32px; border-radius: 6px; border: 1px solid var(--bd); background: #fff; cursor: pointer; display: grid; place-items: center; color: var(--txt-muted); }
.icon-btn:hover { border-color: var(--or); color: var(--or); }

/* —— 设备卡片网格 —— */
.dev-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }
.dev-card { background: #fff; border: 1px solid var(--bd); border-radius: 10px; padding: 14px 16px; transition: .16s; position: relative; overflow: hidden; }
.dev-card:hover { border-color: var(--or); box-shadow: 0 6px 20px rgba(255,138,30,.12); transform: translateY(-2px); }
.dev-card::before { content: ''; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: linear-gradient(180deg,#ff7a00,#ffd34e); opacity: 0; transition: .16s; }
.dev-card:hover::before { opacity: 1; }
.dc-head { display: flex; align-items: center; gap: 8px; }
.dc-name { font-size: 15px; font-weight: 700; color: var(--txt); }
.dc-icons { margin-left: auto; display: flex; gap: 6px; color: #c2cad6; font-size: 14px; }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 600; }
.tag.on  { color: #fff; background: var(--ok); }
.tag.off { color: #fff; background: var(--off); }
.tag.warn{ color: #fff; background: var(--warn); }
.dc-tags { display: flex; gap: 6px; margin: 10px 0; flex-wrap: wrap; }
.proto { font-size: 11px; padding: 2px 8px; border-radius: 4px; background: rgba(255,138,30,.10); color: var(--or-deep); border: 1px solid rgba(255,138,30,.25); }
.dc-body { display: flex; gap: 12px; }
.dc-info { flex: 1; font-size: 12px; color: var(--txt-muted); line-height: 1.9; }
.dc-info b { color: var(--txt); font-weight: 600; }
.dc-pic { width: 76px; height: 76px; border-radius: 8px; background: linear-gradient(135deg,#fff6ec,#ffe7c7); display: grid; place-items: center; font-size: 34px; }
.dc-foot { display: flex; gap: 8px; margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--bd); }
.dc-btn { flex: 1; text-align: center; padding: 6px 0; font-size: 12px; border-radius: 5px; cursor: pointer; color: #fff; }
.dc-btn.del { background: #f5503e; } .dc-btn.view { background: #3b8bf0; } .dc-btn.run { background: var(--ok); }
.dc-btn.run.off { background: var(--off); }
.dc-btn:hover { filter: brightness(1.06); }

/* —— 首页统计卡 —— */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 14px; }
.stat { background: #fff; border: 1px solid var(--bd); border-radius: 10px; padding: 18px; display: flex; align-items: center; gap: 14px; }
.stat .s-ic { width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center; font-size: 22px; color: #fff; }
.stat .s-val { font-size: 26px; font-weight: 800; color: var(--txt); }
.stat .s-name { font-size: 13px; color: var(--txt-muted); }

/* —— 表格 —— */
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tbl th { text-align: left; padding: 11px 14px; background: #fafbfd; color: var(--txt-muted); font-weight: 600; border-bottom: 1px solid var(--bd); }
table.tbl td { padding: 11px 14px; border-bottom: 1px solid var(--bd); color: var(--txt); }
table.tbl tr:hover td { background: #fff8f0; }
.pill { font-size: 11px; padding: 2px 8px; border-radius: 10px; }
.pill.on { background: rgba(25,179,107,.12); color: var(--ok); }
.pill.off { background: rgba(179,187,199,.18); color: #7a8392; }

.page-head { display: flex; align-items: center; margin-bottom: 14px; }
.page-head h3 { margin: 0; font-size: 18px; }
.page-head .ph-sub { color: var(--txt-muted); font-size: 13px; margin-left: 10px; }

.placeholder { padding: 60px; text-align: center; color: var(--txt-muted); }
.placeholder .ph-ic { font-size: 48px; opacity: .5; }

/* —— 弹窗 —— */
.modal-mask { position: fixed; inset: 0; background: rgba(15,20,32,.5); z-index: 200; display: none; place-items: center; }
.modal-mask.show { display: grid; }
.modal { width: 460px; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.modal-head { padding: 16px 20px; font-size: 16px; font-weight: 700; border-bottom: 1px solid var(--bd); display: flex; align-items: center; }
.modal-head .m-close { margin-left: auto; cursor: pointer; color: var(--txt-muted); }
.modal-body { padding: 20px; max-height: 60vh; overflow-y: auto; }
.modal-body .field { margin-bottom: 14px; }
.modal-body .field label { width: 88px; }
.modal-body .field input, .modal-body .field select { flex: 1; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--bd); display: flex; justify-content: flex-end; gap: 10px; }
.kv { display: flex; padding: 8px 0; border-bottom: 1px dashed var(--bd); font-size: 13px; }
.kv .k { width: 110px; color: var(--txt-muted); }
.kv .v { color: var(--txt); font-weight: 600; }

/* toast */
#toast { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 300;
  background: #2b3340; color: #fff; padding: 10px 20px; border-radius: 8px; font-size: 13px;
  opacity: 0; transition: .25s; pointer-events: none; }
#toast.show { opacity: 1; }

/* —— 内联 SVG 图标 —— */
.ic { width: 16px; height: 16px; flex: none; vertical-align: -0.18em; }
.btn2 .ic, .top-tool .ic { width: 15px; height: 15px; }
.icon-btn .ic { width: 17px; height: 17px; }
.mi-icon { display: inline-flex; align-items: center; justify-content: center; width: 18px; }
.mi-icon .ic { width: 18px; height: 18px; }
.s-ic { color: #fff; }
.s-ic .ic { width: 22px; height: 22px; }
.dc-pic { color: var(--or-deep); }
.dc-pic .ic.pic { width: 38px; height: 38px; }