/* ============================================================
   klgr IoT · 深空科技主题（多主题：蓝/黑/白，默认蓝色）
   ============================================================ */

:root, [data-theme="blue"] {
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --radius: 14px;
  --bg: #070b14; --bg-soft: #0b1120;
  --panel: rgba(17, 25, 42, 0.72); --panel-solid: #101a2e;
  --line: rgba(148, 163, 184, 0.14); --line-strong: rgba(148, 163, 184, 0.28);
  --text: #e2e8f0; --text-2: #94a3b8; --text-3: #64748b;
  --cyan: #22d3ee; --blue: #3b82f6; --indigo: #6366f1;
  --green: #34d399; --red: #f87171; --amber: #fbbf24;
  --btn-text: #fff;
  --shadow: 0 8px 32px rgba(2, 6, 18, 0.5);
  --logo-glow: rgba(34, 211, 238, 0.6);
  --glow: 0 0 18px rgba(34, 211, 238, 0.35);
}
[data-theme="dark"] {
  --bg: #000000; --bg-soft: #0d0d0f;
  --panel: rgba(24, 24, 27, 0.72); --panel-solid: #18181b;
  --line: rgba(228, 228, 231, 0.10); --line-strong: rgba(228, 228, 231, 0.24);
  --text: #fafafa; --text-2: #a1a1aa; --text-3: #71717a;
  --cyan: #e4e4e7; --blue: #c9ccd1; --indigo: #a1a1aa;
  --green: #4ade80; --red: #f87171; --amber: #fbbf24;
  --btn-text: #09090b;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.65);
  --logo-glow: rgba(228, 228, 231, 0.55);
  --glow: 0 0 18px rgba(228, 228, 231, 0.3);
}
[data-theme="light"] {
  --bg: #eef2f8; --bg-soft: #f8fafc;
  --panel: rgba(255, 255, 255, 0.78); --panel-solid: #ffffff;
  --line: rgba(15, 23, 42, 0.10); --line-strong: rgba(15, 23, 42, 0.22);
  --text: #0f172a; --text-2: #475569; --text-3: #8a97ab;
  --cyan: #0891b2; --blue: #2563eb; --indigo: #4f46e5;
  --green: #059669; --red: #dc2626; --amber: #d97706;
  --btn-text: #fff;
  --shadow: 0 10px 32px rgba(148, 163, 184, 0.28);
  --logo-glow: rgba(8, 145, 178, 0.35);
  --glow: 0 0 18px rgba(8, 145, 178, 0.22);
}

/* 主题切换过渡（全局平滑） */
body, .card, .stat, .navbar, .login-box, .toast, .device-card, table,
input.fld, select.fld, .login-box input, button.btn, .tabs, .theme-pop {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease, box-shadow .35s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---------------- 背景层：光斑 + 网格 ---------------- */
.bg-layer {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1000px 500px at 15% -10%, color-mix(in srgb, var(--blue) 14%, transparent), transparent 60%),
    radial-gradient(900px 480px at 90% 0%, color-mix(in srgb, var(--cyan) 10%, transparent), transparent 60%),
    radial-gradient(800px 600px at 50% 110%, color-mix(in srgb, var(--indigo) 10%, transparent), transparent 60%),
    var(--bg);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--text-3) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text-3) 5%, transparent) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
}
#bgCanvas { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* 鼠标跟随光晕 */
.cursor-glow {
  position: fixed; width: 560px; height: 560px; border-radius: 50%;
  pointer-events: none; z-index: -1; opacity: 0; transition: opacity .6s ease;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle,
    color-mix(in srgb, var(--cyan) 7%, transparent), transparent 65%);
}
.cursor-glow.show { opacity: 1; }

a { color: var(--cyan); text-decoration: none; }

/* ---------------- 顶部导航 ---------------- */
.navbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  height: 58px; padding: 0 22px;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; letter-spacing: .5px; }
.brand .logo {
  width: 30px; height: 30px; display: grid; place-items: center;
  color: var(--cyan); filter: drop-shadow(0 0 8px var(--logo-glow));
}
.brand .logo svg { width: 22px; height: 22px; }
.brand span { color: var(--text-2); font-weight: 500; font-size: 13px; }
.brand b em { color: var(--cyan); font-style: normal; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.role-badge {
  font-size: 11px; padding: 3px 10px; border-radius: 99px; letter-spacing: 1px;
  border: 1px solid color-mix(in srgb, var(--cyan) 35%, transparent); color: var(--cyan);
  background: color-mix(in srgb, var(--cyan) 8%, transparent);
}
.role-badge.admin { border-color: color-mix(in srgb, var(--indigo) 40%, transparent); color: var(--indigo); background: color-mix(in srgb, var(--indigo) 10%, transparent); }
.who { font-size: 13px; color: var(--text-2); font-family: var(--mono, monospace); }

/* ---------------- 工具按钮（主题/音效） ---------------- */
.icon-btn {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  display: grid; place-items: center; cursor: pointer; position: relative; overflow: hidden;
  background: color-mix(in srgb, var(--text-3) 8%, transparent);
  border: 1px solid var(--line); color: var(--text-2);
  transition: color .2s, border-color .2s, box-shadow .2s, transform .15s;
}
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn:hover {
  color: var(--cyan);
  border-color: color-mix(in srgb, var(--cyan) 45%, transparent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--cyan) 20%, transparent);
  transform: translateY(-1px);
}
.icon-btn.on { color: var(--cyan); border-color: color-mix(in srgb, var(--cyan) 40%, transparent); }

/* 主题选择弹层 */
.theme-wrap { position: relative; }
.theme-pop {
  position: absolute; top: 44px; right: 0; z-index: 100;
  display: none; gap: 16px; padding: 14px 16px;
  background: var(--panel-solid);
  border: 1px solid var(--line-strong); border-radius: 12px;
  box-shadow: var(--shadow); backdrop-filter: blur(12px);
}
.theme-pop.show { display: flex; animation: popin .18s ease; }
.theme-item {
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  cursor: pointer; font-size: 11px; color: var(--text-3); transition: color .2s;
}
.theme-item:hover { color: var(--text-2); }
.theme-item.active { color: var(--cyan); }
.theme-ball {
  width: 24px; height: 24px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.theme-ball:hover { transform: scale(1.12); }
.theme-ball.active {
  border-color: var(--cyan); transform: scale(1.15);
  box-shadow: 0 0 12px color-mix(in srgb, var(--cyan) 55%, transparent);
}
.ball-blue  { background: linear-gradient(135deg, #22d3ee, #3b82f6); }
.ball-dark  { background: linear-gradient(135deg, #e4e4e7 15%, #18181b 85%); }
.ball-light { background: linear-gradient(135deg, #ffffff 15%, #94a3b8 85%); box-shadow: inset 0 0 0 1px rgba(15,23,42,.15); }

.login-tools { position: fixed; top: 16px; right: 16px; z-index: 60; display: flex; gap: 10px; }

/* ---------------- 容器与卡片 ---------------- */
.container { max-width: 980px; margin: 0 auto; padding: 20px 18px 80px; }
.card {
  position: relative; overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius, 14px);
  padding: 20px;
  margin-bottom: 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  animation: rise .5s ease both;
}
.card:hover { border-color: var(--line-strong); }
/* hover 扫光 */
.card::after {
  content: ''; position: absolute; top: 0; left: -70%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, color-mix(in srgb, var(--cyan) 9%, transparent), transparent);
  transform: skewX(-18deg); transition: left .7s ease; pointer-events: none;
}
.card:hover::after { left: 132%; }

.card h3 {
  font-size: 14px; color: var(--text-2); font-weight: 600;
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; letter-spacing: .5px;
}
.card h3 .h3-icon { display: inline-flex; align-items: center; gap: 8px; color: var(--text); font-size: 15px; }
.card h3 .h3-icon svg { width: 18px; height: 18px; color: var(--cyan); filter: drop-shadow(0 0 6px var(--logo-glow)); }
.card h3 .h3-title { display: inline-flex; align-items: center; gap: 9px; }
.card h3 .h3-title svg { width: 18px; height: 18px; color: var(--cyan); filter: drop-shadow(0 0 6px var(--logo-glow)); flex: none; }
.card h3 small { font-weight: 400; color: var(--text-3); font-size: 12px; }

/* ---------------- 统计条 ---------------- */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat {
  position: relative; overflow: hidden;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius, 14px);
  padding: 14px 16px; animation: rise .5s ease both;
  transition: border-color .2s, transform .2s, box-shadow .25s;
}
.stat:hover { transform: translateY(-2px); border-color: var(--line-strong); box-shadow: var(--shadow); }
.stat::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
  box-shadow: 0 0 10px color-mix(in srgb, var(--cyan) 60%, transparent);
}
.stat .label { font-size: 11px; color: var(--text-3); letter-spacing: 1px; margin-bottom: 6px; }
.stat .value { font-size: 24px; font-weight: 700; font-family: var(--mono, monospace); color: var(--text); }
.stat .value small { font-size: 12px; color: var(--text-3); font-weight: 400; }
.stat.on .value { color: var(--green); }
.stat.on::before { background: var(--green); box-shadow: 0 0 10px color-mix(in srgb, var(--green) 60%, transparent); }

/* ---------------- 登录页 ---------------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px 20px 58px; }
.login-box {
  width: min(400px, 92vw);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 36px 30px 30px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow), inset 0 1px 0 color-mix(in srgb, #fff 4%, transparent);
  animation: rise .6s ease both;
  position: relative;
}
.login-box::before {
  content: ''; position: absolute; inset: -1px; border-radius: 18px; padding: 1px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 50%, transparent), transparent 30%, transparent 70%, color-mix(in srgb, var(--indigo) 40%, transparent));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.login-logo { display: grid; place-items: center; margin-bottom: 14px; }
.login-logo svg { width: 52px; height: 52px; color: var(--cyan); filter: drop-shadow(0 0 14px var(--logo-glow)); animation: breathe 3.2s ease-in-out infinite; }
.login-box h1 { font-size: 20px; text-align: center; margin-bottom: 4px; letter-spacing: 2px; }
.login-box .sub { text-align: center; font-size: 11px; color: var(--text-3); letter-spacing: 3px; margin-bottom: 26px; font-family: var(--mono, monospace); min-height: 15px; }
.login-box .sub::before { content: '// '; color: var(--cyan); opacity: .7; }
.login-box input {
  width: 100%; height: 46px; margin-bottom: 12px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 0 14px; font-size: 15px; color: var(--text); outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.login-box input::placeholder { color: var(--text-3); }
.login-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px color-mix(in srgb, var(--cyan) 12%, transparent), var(--glow); }
.login-box .err { color: var(--red); font-size: 13px; min-height: 18px; margin-bottom: 8px; text-align: center; }
.login-foot { margin-top: 20px; display: flex; justify-content: center; gap: 16px; font-size: 11px; color: var(--text-3); font-family: var(--mono, monospace); }
.login-foot .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 5px; animation: pulse 2s infinite; }

/* 登录成功闪光转场 */
body.flash::after {
  content: ''; position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--cyan) 26%, transparent), transparent 72%);
  animation: flashout .55s ease forwards;
}

/* ---------------- 按钮 ---------------- */
button.btn {
  height: 44px; padding: 0 20px; border: none; border-radius: 10px;
  font-size: 14px; font-weight: 600; cursor: pointer; letter-spacing: .5px;
  color: var(--btn-text); position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--blue), var(--indigo));
  transition: transform .15s, box-shadow .2s, filter .2s;
  box-shadow: 0 4px 18px color-mix(in srgb, var(--blue) 25%, transparent);
}
button.btn:hover { filter: brightness(1.12); box-shadow: 0 6px 24px color-mix(in srgb, var(--blue) 40%, transparent); transform: translateY(-1px); }
button.btn:active { transform: translateY(1px) scale(.99); }
button.btn:disabled { filter: grayscale(.6) brightness(.75); cursor: not-allowed; box-shadow: none; }
button.btn.cyan { background: linear-gradient(135deg, var(--cyan), var(--blue)); box-shadow: 0 4px 18px color-mix(in srgb, var(--cyan) 25%, transparent); }
button.btn.ghost {
  background: color-mix(in srgb, var(--text-3) 8%, transparent); border: 1px solid var(--line-strong); color: var(--text-2); box-shadow: none;
}
button.btn.ghost:hover { border-color: var(--cyan); color: var(--cyan); background: color-mix(in srgb, var(--cyan) 7%, transparent); filter: none; }
button.btn.danger { background: linear-gradient(135deg, var(--red), #b91c1c); box-shadow: 0 4px 18px color-mix(in srgb, var(--red) 20%, transparent); color: #fff; }
button.btn.green { background: linear-gradient(135deg, var(--green), #059669); box-shadow: 0 4px 18px color-mix(in srgb, var(--green) 25%, transparent); color: #fff; }
button.btn.gray { background: color-mix(in srgb, var(--text-3) 25%, transparent); border: 1px solid var(--line-strong); }
button.btn.small { height: 30px; padding: 0 12px; font-size: 12px; border-radius: 8px; }
button.btn.block { width: 100%; }
button.btn svg { width: 14px; height: 14px; vertical-align: -2px; }

/* 点击涟漪（JS 注入 .ripple） */
.ripple {
  position: absolute; border-radius: 50%; pointer-events: none;
  background: color-mix(in srgb, var(--cyan) 32%, transparent);
  transform: scale(0); animation: ripple .6s ease-out forwards;
}
.tabs button, .pw-btn, .theme-ball { position: relative; overflow: hidden; }

/* ---------------- 设备卡片 ---------------- */
.device-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 14px; }
.device-card {
  position: relative; overflow: hidden;
  background: var(--panel-solid); border: 1px solid var(--line); border-radius: var(--radius, 14px);
  padding: 16px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color .25s, transform .2s, box-shadow .25s;
  animation: rise .5s ease both;
}
.device-card.online { border-color: color-mix(in srgb, var(--green) 25%, transparent); }
.device-card.online::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: .8;
}
.device-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-strong); }
.dev-top { display: flex; justify-content: space-between; align-items: flex-start; }
.dev-name { font-size: 15px; font-weight: 700; cursor: pointer; letter-spacing: .3px; }
.dev-name:hover { color: var(--cyan); }
.dev-id { font-size: 11px; color: var(--text-3); font-family: var(--mono, monospace); margin-top: 3px; }
.dev-icon { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; color: var(--text-3); background: color-mix(in srgb, var(--text-3) 6%, transparent); border: 1px solid var(--line); }
.dev-icon svg { width: 22px; height: 22px; }
.device-card.on .dev-icon { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 40%, transparent); background: color-mix(in srgb, var(--amber) 8%, transparent); filter: drop-shadow(0 0 8px color-mix(in srgb, var(--amber) 45%, transparent)); }

/* 在线呼吸灯 */
.presence { display: flex; align-items: center; gap: 6px; font-size: 12px; font-family: var(--mono, monospace); }
.presence .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); }
.presence.on .dot { background: var(--green); box-shadow: 0 0 8px color-mix(in srgb, var(--green) 90%, transparent); animation: pulse 2s infinite; }
.presence.on { color: var(--green); }
.presence.off { color: var(--text-3); }

/* 信号条 */
.sig { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.sig i { width: 3px; border-radius: 1px; background: var(--text-3); opacity: .35; }
.sig i:nth-child(1) { height: 4px; } .sig i:nth-child(2) { height: 7px; }
.sig i:nth-child(3) { height: 10px; } .sig i:nth-child(4) { height: 13px; }
.sig.q3 i { background: var(--green); opacity: 1; box-shadow: 0 0 4px color-mix(in srgb, var(--green) 50%, transparent); }
.sig.q2 i:nth-child(-n+3) { background: var(--cyan); opacity: 1; }
.sig.q1 i:nth-child(-n+2) { background: var(--amber); opacity: 1; }
.sig.q0 i:nth-child(1) { background: var(--red); opacity: 1; }

.dev-meta { font-size: 12px; color: var(--text-3); line-height: 1.8; font-family: var(--mono, monospace); }
.dev-meta b { color: var(--text-2); font-weight: 500; }

/* 电源开关 */
.pw-row { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 6px; }
.pw-left { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.pw-btn {
  width: 58px; height: 58px; border-radius: 50%; cursor: pointer; border: none; position: relative;
  background: color-mix(in srgb, var(--text-3) 8%, transparent); border: 2px solid var(--line-strong); color: var(--text-3);
  display: grid; place-items: center; transition: all .25s; font-size: 20px;
}
.pw-btn svg { width: 24px; height: 24px; }
.pw-btn:disabled { opacity: .35; cursor: not-allowed; }
.pw-btn.on {
  border-color: var(--amber); color: var(--amber);
  background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--amber) 22%, transparent), color-mix(in srgb, var(--amber) 5%, transparent));
  box-shadow: 0 0 18px color-mix(in srgb, var(--amber) 35%, transparent), inset 0 0 12px color-mix(in srgb, var(--amber) 18%, transparent);
}
.pw-btn:active { transform: scale(.93); }
.pw-state { font-size: 12px; font-family: var(--mono, monospace); color: var(--text-3); }
.pw-state.on { color: var(--amber); }

/* 能量扩散环（开关灯时 JS 注入 .fx-ring） */
.fx-ring {
  position: fixed; width: 14px; height: 14px; border-radius: 50%; pointer-events: none; z-index: 9998;
  border: 2px solid var(--amber); transform: translate(-50%, -50%);
  animation: fxring .7s ease-out forwards;
}

/* ---------------- OTP 绑定码输入 ---------------- */
.otp-row { display: flex; gap: 10px; align-items: center; }
.otp { display: flex; gap: 8px; flex: 1; }
.otp input {
  width: 100%; height: 48px; text-align: center; font-size: 20px; font-family: var(--mono, monospace);
  color: var(--cyan); background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid var(--line); border-radius: 10px; outline: none;
  transition: all .2s; caret-color: var(--cyan);
}
.otp input:focus { border-color: var(--cyan); box-shadow: var(--glow); transform: translateY(-2px); }

/* ---------------- 表格 ---------------- */
.table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 13px; background: color-mix(in srgb, var(--bg) 35%, transparent); }
th, td { padding: 11px 12px; text-align: left; white-space: nowrap; }
th { color: var(--text-3); font-weight: 500; font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; background: color-mix(in srgb, var(--cyan) 4%, transparent); border-bottom: 1px solid var(--line); font-family: var(--mono, monospace); }
td { border-bottom: 1px solid color-mix(in srgb, var(--text-3) 7%, transparent); color: var(--text-2); }
tbody tr { transition: background .15s; }
tbody tr:hover { background: color-mix(in srgb, var(--cyan) 5%, transparent); }
tbody tr:last-child td { border-bottom: none; }
td b { color: var(--text); font-weight: 600; }
.mono { font-family: var(--mono, monospace); font-size: 12px; }

/* 徽章 */
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; padding: 3px 10px; border-radius: 99px; font-family: var(--mono, monospace); }
.badge.on { color: var(--green); background: color-mix(in srgb, var(--green) 10%, transparent); border: 1px solid color-mix(in srgb, var(--green) 30%, transparent); }
.badge.off { color: var(--text-3); background: color-mix(in srgb, var(--text-3) 12%, transparent); border: 1px solid var(--line-strong); }
.badge.lit { color: var(--amber); background: color-mix(in srgb, var(--amber) 10%, transparent); border: 1px solid color-mix(in srgb, var(--amber) 30%, transparent); }
.badge.role { color: var(--indigo); background: color-mix(in srgb, var(--indigo) 12%, transparent); border: 1px solid color-mix(in srgb, var(--indigo) 35%, transparent); }

/* ---------------- Tab ---------------- */
.tabs {
  display: flex; gap: 4px; margin-bottom: 16px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 5px;
  backdrop-filter: blur(10px);
}
.tabs button {
  flex: 1; height: 40px; border: none; border-radius: 9px; background: none;
  font-size: 14px; color: var(--text-3); cursor: pointer; transition: all .2s;
  display: flex; align-items: center; justify-content: center; gap: 7px;
}
.tabs button svg { width: 16px; height: 16px; }
.tabs button.active {
  color: var(--btn-text); font-weight: 600;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 18%, transparent), color-mix(in srgb, var(--blue) 18%, transparent));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--cyan) 35%, transparent), 0 0 14px color-mix(in srgb, var(--cyan) 12%, transparent);
}
[data-theme="dark"] .tabs button.active { color: var(--text); }
.tabs button:not(.active):hover { color: var(--text-2); background: color-mix(in srgb, var(--text-3) 6%, transparent); }

/* ---------------- 日志时间线 ---------------- */
.loglist { position: relative; padding-left: 26px; }
.loglist::before {
  content: ''; position: absolute; left: 5px; top: 12px; bottom: 12px; width: 1px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--cyan) 45%, transparent), color-mix(in srgb, var(--indigo) 12%, transparent));
}
.logline { display: flex; gap: 14px; padding: 10px 4px; border-bottom: 1px solid color-mix(in srgb, var(--text-3) 7%, transparent); font-size: 13px; position: relative; }
.logline::before {
  content: ''; position: absolute; left: -25px; top: 15px; width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg-soft); border: 2px solid var(--cyan);
  box-shadow: 0 0 8px color-mix(in srgb, var(--cyan) 55%, transparent);
}
.logline:nth-child(n+9)::before { border-color: color-mix(in srgb, var(--text-3) 55%, transparent); box-shadow: none; }
.logline:last-child { border-bottom: none; }
.logline .lt { color: var(--text-3); font-family: var(--mono, monospace); font-size: 12px; min-width: 118px; padding-top: 1px; }
.logline .lact { min-width: 66px; font-family: var(--mono, monospace); font-size: 12px; color: var(--text-2); }
.logline .lact.control { color: var(--amber); }
.logline .lact.login { color: var(--cyan); }
.logline .lact.bind, .logline .lact.reconfig { color: var(--green); }
.logline .lact.user_create, .logline .lact.user_delete, .logline .lact.resetpwd { color: var(--indigo); }
.logline .lact.unbind { color: var(--red); }
.logline .lact.register { color: var(--cyan); }
.logline .lact.fail { color: var(--red); }
.logline .who { color: var(--text-2); font-family: var(--mono, monospace); min-width: 64px; }
.logline .ldetail { color: var(--text-3); flex: 1; }
.logline .ldev { color: var(--text-3); font-family: var(--mono, monospace); font-size: 12px; }

/* ---------------- 表单 ---------------- */
input.fld, select.fld {
  height: 42px; border: 1px solid var(--line); border-radius: 10px;
  padding: 0 12px; font-size: 14px; background: color-mix(in srgb, var(--bg) 55%, transparent); color: var(--text); outline: none;
  transition: border-color .2s, box-shadow .2s;
}
input.fld:focus, select.fld:focus { border-color: var(--cyan); box-shadow: var(--glow); }
input.fld::placeholder { color: var(--text-3); }
select.fld option { background: var(--panel-solid); }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.form-row .fld { flex: 1; min-width: 130px; }

/* ---------------- Toast（弹性弹出） ---------------- */
.toast {
  position: fixed; top: 76px; left: 50%; transform: translate(-50%, -14px) scale(.92); z-index: 999;
  background: color-mix(in srgb, var(--bg) 92%, transparent); color: var(--text);
  border: 1px solid color-mix(in srgb, var(--cyan) 40%, transparent); border-radius: 10px;
  padding: 11px 22px; font-size: 14px; opacity: 0;
  transition: all .32s cubic-bezier(.34, 1.56, .64, 1);
  box-shadow: var(--shadow), 0 0 16px color-mix(in srgb, var(--cyan) 15%, transparent);
  backdrop-filter: blur(10px); max-width: 86vw; text-align: center;
}
.toast.err { border-color: color-mix(in srgb, var(--red) 50%, transparent); box-shadow: var(--shadow), 0 0 16px color-mix(in srgb, var(--red) 20%, transparent); }
.toast.show { opacity: 1; transform: translate(-50%, 0) scale(1); }

/* ---------------- 空状态 ---------------- */
.empty { text-align: center; color: var(--text-3); font-size: 13px; padding: 34px 0; line-height: 2.1; }
.empty svg { width: 54px; height: 54px; color: var(--text-3); opacity: .5; margin-bottom: 6px; }

/* 用户视图链接（窄屏文字换图标） */
.user-view-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
.user-view-link .link-icon { display: none; }
.user-view-link .link-icon svg { width: 15px; height: 15px; }

/* ---------------- 点击粒子迸发（JS 注入 .burst-p） ---------------- */
.burst-p {
  position: fixed; width: 5px; height: 5px; border-radius: 50%; pointer-events: none; z-index: 9997;
  background: var(--cyan); box-shadow: 0 0 6px color-mix(in srgb, var(--cyan) 70%, transparent);
  transform: translate(0, 0) scale(1);
  animation: burst .55s ease-out forwards;
}
.burst-p.alt { background: var(--amber); box-shadow: 0 0 6px color-mix(in srgb, var(--amber) 70%, transparent); }

/* ---------------- 动画 ---------------- */
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes breathe { 0%, 100% { filter: drop-shadow(0 0 10px var(--logo-glow)); } 50% { filter: drop-shadow(0 0 20px var(--logo-glow)); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes popin { from { opacity: 0; transform: translateY(-6px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes ripple { from { transform: scale(0); opacity: .9; } to { transform: scale(1); opacity: 0; } }
@keyframes fxring { from { transform: translate(-50%, -50%) scale(1); opacity: .95; } to { transform: translate(-50%, -50%) scale(7); opacity: 0; } }
@keyframes burst { from { transform: translate(0, 0) scale(1); opacity: 1; } to { transform: translate(var(--dx, 40px), var(--dy, -40px)) scale(.2); opacity: 0; } }
@keyframes flashout { 0% { opacity: 0; } 35% { opacity: 1; } 100% { opacity: 0; } }
.spinner {
  width: 18px; height: 18px; border-radius: 50%; display: inline-block; vertical-align: middle; margin-right: 8px;
  border: 2px solid color-mix(in srgb, #fff 25%, transparent); border-top-color: var(--cyan); animation: spin .7s linear infinite;
}

/* ---------------- 底部版权 footer ---------------- */
.site-footer {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 14px; font-size: 11px;
  color: var(--text-3); font-family: var(--mono, monospace); letter-spacing: .4px;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
}
.site-footer b { color: var(--text-2); font-weight: 600; }
.site-footer .author-link { color: var(--cyan); cursor: pointer; text-decoration: none; border-bottom: 1px dashed color-mix(in srgb, var(--cyan) 50%, transparent); }
.site-footer .author-link:hover { filter: brightness(1.25); }
.site-footer .ver { color: var(--text-3); }
.demo-flag-inline {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--amber); padding: 1px 8px; border-radius: 99px;
  border: 1px solid color-mix(in srgb, var(--amber) 40%, transparent);
  background: color-mix(in srgb, var(--amber) 8%, transparent);
}
.demo-flag-inline .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); animation: pulse 1.6s infinite; }

/* ---------------- 二维码弹层（联系作者） ---------------- */
.qr-modal {
  position: fixed; inset: 0; z-index: 9999;
  display: grid; place-items: center; padding: 20px;
  background: color-mix(in srgb, #000 55%, transparent);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; pointer-events: none; transition: opacity .25s ease;
}
.qr-modal.show { opacity: 1; pointer-events: auto; }
.qr-card {
  position: relative;
  background: var(--panel-solid);
  border: 1px solid var(--line-strong); border-radius: 16px;
  padding: 26px 30px 22px; text-align: center;
  box-shadow: var(--shadow);
  transform: scale(.9) translateY(10px); transition: transform .25s cubic-bezier(.34, 1.56, .64, 1);
}
.qr-modal.show .qr-card { transform: none; }
.qr-title { font-size: 15px; font-weight: 700; letter-spacing: 1px; }
.qr-card img {
  width: min(230px, 60vw); aspect-ratio: 1; border-radius: 10px;
  display: block; margin: 14px auto 10px;
  background: #fff; padding: 8px;
  border: 1px solid var(--line);
}
.qr-sub { font-size: 12px; color: var(--text-3); }
.qr-close {
  position: absolute; top: 10px; right: 10px;
  width: 28px; height: 28px; border-radius: 8px; cursor: pointer;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--text-3) 8%, transparent);
  border: 1px solid var(--line); color: var(--text-2);
  transition: color .2s, border-color .2s;
}
.qr-close:hover { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.qr-close svg { width: 14px; height: 14px; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 560px) {
  .container { padding: 14px 12px 96px; }
  .card { padding: 15px; }
  .card h3 { flex-wrap: wrap; row-gap: 4px; }
  .card h3 .h3-title { flex: 1 1 auto; }
  .card h3 small { flex-basis: 100%; order: 2; }
  .navbar { padding: 0 12px; height: 52px; }
  .brand { font-size: 14px; gap: 8px; white-space: nowrap; }
  .brand .logo { width: 26px; height: 26px; }
  .brand .logo svg { width: 19px; height: 19px; }
  .brand span { display: none; }
  .brand b { white-space: nowrap; }
  .nav-right { gap: 8px; white-space: nowrap; }
  .nav-right .btn.small { padding: 0 10px; flex: none; }
  .who { display: none; }
  .user-view-link .link-icon { display: inline-flex; }
  .user-view-link .link-text { display: none; }
  /* 手机端顶栏收窄：添加设备图标化；修改密码按钮保留汉字两行显示（10px 每行两字） */
  .nav-right .btn.cyan { font-size: 0; gap: 0; padding: 0 11px; }
  .nav-right .btn.cyan svg { width: 15px; height: 15px; }
  .nav-right .btn.chgpwd-btn {
    display: block; font-size: 10px; padding: 4px 0 0;
    width: 33px; height: 30px; line-height: 11px;
    white-space: normal;
  }
  .nav-right .btn.chgpwd-btn .nav-ico { display: none; }
  th, td { padding: 9px 8px; }
  .stat .value { font-size: 20px; }
  .login-tools { top: 10px; right: 10px; }
  .theme-pop { right: -30px; }
  .login-foot { gap: 10px; flex-wrap: wrap; }
  .site-footer { font-size: 10px; gap: 8px; }
}
@media (max-width: 400px) {
  .role-badge { display: none; }
}

/* ============================================================
   灯泡点亮增强（2026-10-26）：开灯时灯泡高亮 + 呼吸光晕 + 卡片暖色氛围
   ============================================================ */
.device-card .dev-icon { transition: color .3s, background .3s, border-color .3s, filter .3s, box-shadow .3s; }
.device-card.on .dev-icon {
  color: var(--amber);
  background: radial-gradient(circle at 50% 45%,
    color-mix(in srgb, var(--amber) 26%, transparent) 0%,
    color-mix(in srgb, var(--amber) 10%, transparent) 55%, transparent 100%);
  border-color: color-mix(in srgb, var(--amber) 55%, transparent);
  filter: drop-shadow(0 0 12px color-mix(in srgb, var(--amber) 75%, transparent));
  animation: bulb-breathe 2.6s ease-in-out infinite;
}
@keyframes bulb-breathe {
  0%, 100% { box-shadow: 0 0 10px 2px color-mix(in srgb, var(--amber) 30%, transparent), inset 0 0 6px color-mix(in srgb, var(--amber) 25%, transparent); }
  50%      { box-shadow: 0 0 24px 6px color-mix(in srgb, var(--amber) 55%, transparent), inset 0 0 12px color-mix(in srgb, var(--amber) 45%, transparent); }
}
/* 开灯时整卡暖色氛围 + 顶部琥珀光带 */
.device-card.on {
  background: linear-gradient(180deg, color-mix(in srgb, var(--amber) 6%, var(--panel-solid)) 0%, var(--panel-solid) 40%);
}
.device-card.on::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: .9;
}
/* 电源按钮开灯态强化 */
.device-card .pw-btn { transition: all .25s; }
.device-card .pw-btn.on {
  animation: pw-glow 2.6s ease-in-out infinite;
}
@keyframes pw-glow {
  0%, 100% { box-shadow: 0 0 8px color-mix(in srgb, var(--amber) 30%, transparent); }
  50%      { box-shadow: 0 0 20px color-mix(in srgb, var(--amber) 60%, transparent); }
}

/* ============================================================
   通用弹窗
   ============================================================ */
.modal-mask {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(2, 8, 20, .55); backdrop-filter: blur(5px);
  display: flex; align-items: center; justify-content: center;
  animation: fadein .16s ease;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
.modal-box {
  width: min(440px, 92vw); max-height: 86vh; overflow-y: auto;
  background: var(--panel-solid);
  border: 1px solid var(--line-strong); border-radius: 16px;
  padding: 20px 22px; box-shadow: var(--shadow);
  animation: rise .22s ease;
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; font-size: 15px; }
.modal-head b { letter-spacing: .5px; }
.modal-body { display: flex; flex-direction: column; gap: 12px; }
.modal-body .fld { width: 100%; }
.modal-row { display: flex; gap: 10px; }
.modal-row .fld { flex: 1; }
.modal-label { font-size: 12px; color: var(--text-3); margin-bottom: -6px; }
.modal-tip { font-size: 11px; color: var(--text-3); line-height: 1.6; }

/* ============================================================
   设备卡片 v2 布局（2026-10-27 重构）：面向多设备 · 参数 chip 网格 · 操作收纳
   层级：头部(名称+在线+信号) → 主状态(大字+电源钮) → 参数网格 → 操作行 → 次要信息
   ============================================================ */

/* 头部：图标+名称(可点击改名) | 在线徽章+信号条 */
.dev-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.dev-head-l { display: flex; align-items: center; gap: 10px; min-width: 0; }
.dev-head-l .dev-tt { min-width: 0; }
.dev-head-r { display: flex; align-items: center; gap: 8px; flex: none; }

/* 主状态区：大字开关状态（开灯琥珀/关灯弱化）+ 倒计时 */
.dev-main { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.dev-state-big {
  font-size: 19px; font-weight: 700; letter-spacing: 1px; color: var(--text-3);
  transition: color .3s;
}
.device-card.on .dev-state-big { color: var(--amber); text-shadow: 0 0 14px color-mix(in srgb, var(--amber) 35%, transparent); }
.dev-cd-inline { font-size: 12px; color: var(--cyan); margin-top: 3px; font-family: var(--mono, monospace); }

/* 参数 chip 网格：模式/人体/光敏/阈值 —— 各项独立小卡，层级分明 */
.dev-info { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.dev-chip {
  background: color-mix(in srgb, var(--text-3) 4%, transparent);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 7px 10px; display: flex; flex-direction: column; gap: 3px; min-width: 0;
}
.dev-chip .k {
  font-size: 10px; color: var(--text-3); letter-spacing: 1px;
  font-family: var(--mono, monospace); text-transform: uppercase;
}
.dev-chip .v {
  font-size: 13px; color: var(--text); font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dev-chip .v.pir-on { color: var(--green); }
.dev-chip .v.amber { color: var(--amber); }

/* 操作按钮行：切模式/刷新/设置/解绑 等宽横排 */
.dev-actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.dev-actions .btn { width: 100%; padding: 0 4px; white-space: nowrap; justify-content: center; }

/* 底部次要信息行：FW / RSSI / 最后在线 */
.dev-foot {
  font-size: 11px; color: var(--text-3); font-family: var(--mono, monospace);
  border-top: 1px dashed color-mix(in srgb, var(--text-3) 15%, transparent);
  padding-top: 8px; display: flex; flex-wrap: wrap; gap: 4px 12px;
}
.dev-foot b { color: var(--text-2); font-weight: 500; }

/* 手机端：主状态与 chip 微缩 */
@media (max-width: 480px) {
  .dev-state-big { font-size: 17px; }
  .dev-chip .v { font-size: 12px; }
  .dev-info { gap: 6px; }
  .dev-actions .btn { font-size: 11px; padding: 0 2px; }
}

/* 管理端表格：绑定用户/设备列表列允许换行收窄 */
td.cell-wrap { white-space: normal; max-width: 200px; line-height: 1.55; vertical-align: top; }