/* ============================================================================
   轻装到家 · 运营后台 视觉系统（Neon Ops）
   深空底色 + 玻璃面板 + 青紫霓虹；纯 CSS，无外部字体/图片依赖
   ========================================================================== */

:root {
  /* 底色与层级 */
  --bg-0: #04060b;
  --bg-1: #070b13;
  --panel: rgba(13, 19, 30, 0.72);
  --panel-solid: #0c121c;
  --panel-2: rgba(22, 31, 46, 0.72);
  --line: rgba(120, 160, 220, 0.14);
  --line-strong: rgba(120, 200, 255, 0.28);

  /* 文字 */
  --text: #e7eefc;
  --muted: #7d8ca6;
  --dim: #55637a;

  /* 霓虹 */
  --cyan: #22d3ee;
  --cyan-soft: rgba(34, 211, 238, 0.14);
  --violet: #7c5cff;
  --violet-soft: rgba(124, 92, 255, 0.16);
  --magenta: #ff4d8f;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px -20px rgba(0, 0, 0, 0.9);
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font: 14px/1.55 var(--sans);
  color: var(--text);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 背景光晕 + 网格 + 扫描线（纯 CSS，固定在最底层） */
body::before {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -2;
  background:
    radial-gradient(900px 620px at 12% -6%, rgba(124, 92, 255, 0.20), transparent 62%),
    radial-gradient(820px 560px at 88% 4%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(1000px 700px at 60% 108%, rgba(255, 77, 143, 0.10), transparent 65%),
    var(--bg-1);
  filter: saturate(1.05);
  animation: aurora 26s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 190, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 190, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 30%, transparent 82%);
  animation: grid-pan 60s linear infinite;
}

@keyframes aurora {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-2%, 1.5%, 0) scale(1.04); }
  100% { transform: translate3d(1.5%, -1%, 0) scale(1.02); }
}
@keyframes grid-pan {
  from { background-position: 0 0, 0 0; }
  to { background-position: 56px 56px, 56px 56px; }
}

::selection { background: rgba(34, 211, 238, 0.28); }

/* 滚动条 */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.4), rgba(124, 92, 255, 0.4));
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-track { background: transparent; }

/* ------------------------------- 基础控件 ------------------------------- */

a { color: var(--cyan); text-decoration: none; }
a:hover { text-shadow: 0 0 12px rgba(34, 211, 238, 0.6); }

button {
  font: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 14px;
  cursor: pointer;
  transition: border-color 0.18s, box-shadow 0.18s, transform 0.12s, background 0.18s;
  backdrop-filter: blur(6px);
}
button:hover {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.25), 0 0 22px -6px rgba(34, 211, 238, 0.5);
  transform: translateY(-1px);
}
button:active { transform: translateY(0); }
button:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

button.primary {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.95), rgba(124, 92, 255, 0.95));
  border: none;
  color: #04121a;
  font-weight: 650;
  letter-spacing: 0.02em;
}
button.primary:hover {
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.5), 0 12px 34px -12px rgba(34, 211, 238, 0.85);
}
button.danger { color: var(--danger); border-color: rgba(248, 113, 113, 0.32); }
button.ghost { background: transparent; }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: rgba(6, 11, 18, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  width: 100%;
  transition: border-color 0.18s, box-shadow 0.18s;
}
input::placeholder { color: var(--dim); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(34, 211, 238, 0.6);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 52%, calc(100% - 13px) 52%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 34px; }

/* -------------------------------- 布局 --------------------------------- */

#app { display: flex; min-height: 100vh; }

.sidebar {
  width: 236px;
  flex: 0 0 236px;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 20px 14px 16px;
  background: linear-gradient(180deg, rgba(9, 14, 22, 0.92), rgba(6, 10, 16, 0.86));
  border-right: 1px solid var(--line);
  backdrop-filter: blur(18px);
  z-index: 5;
}
.sidebar::after {
  content: "";
  position: absolute;
  top: 0; right: -1px; bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.45), rgba(124, 92, 255, 0.35), transparent);
  opacity: 0.7;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px 18px;
  font-size: 16px;
  font-weight: 750;
  letter-spacing: 0.04em;
}
.logo::before {
  content: "";
  width: 26px; height: 26px;
  border-radius: 8px;
  background: conic-gradient(from 200deg, var(--cyan), var(--violet), var(--magenta), var(--cyan));
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.55);
  animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.logo small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin-top: 2px;
}

.who {
  margin: 0 6px 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-group {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  padding: 14px 10px 6px;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13.5px;
  cursor: pointer;
  transition: color 0.16s, background 0.16s;
  user-select: none;
}
.nav-item svg { width: 16px; height: 16px; flex: 0 0 16px; opacity: 0.75; }
.nav-item:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav-item:hover svg { opacity: 1; }
.nav-item.active {
  color: #eafcff;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.16), rgba(124, 92, 255, 0.10) 60%, transparent);
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.22);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.9);
}
.nav-item.active svg { opacity: 1; filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.7)); }
.nav-item .badge {
  margin-left: auto;
  min-width: 20px;
  text-align: center;
  background: linear-gradient(135deg, var(--magenta), #ff7a45);
  color: #fff;
  border-radius: 999px;
  font-size: 11px;
  padding: 0 6px;
  box-shadow: 0 0 14px rgba(255, 77, 143, 0.6);
}
.nav-item .spacer { flex: 1; }

.main {
  flex: 1;
  min-width: 0;
  padding: 22px 26px 64px;
}

/* -------------------------------- 顶栏 --------------------------------- */

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.crumb {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 6px;
}
.topbar h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0.01em;
  background: linear-gradient(92deg, #ffffff, #a9e9ff 42%, #b9a8ff 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.topbar .sub { color: var(--muted); font-size: 12.5px; margin-top: 6px; max-width: 62ch; }

.top-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.chip .dot.warn { background: var(--warn); box-shadow: 0 0 10px var(--warn); }
.chip .dot.off { background: var(--dim); box-shadow: none; }
.chip.mono { font-family: var(--mono); letter-spacing: 0.04em; }

.user-chip { position: relative; }
.user-chip .name { max-width: 148px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-menu {
  position: absolute;
  right: 0; top: calc(100% + 8px);
  min-width: 168px;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(10, 16, 25, 0.96);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  display: none;
  z-index: 30;
}
.user-menu.open { display: block; animation: pop 0.14s ease-out; }
.user-menu > div {
  padding: 9px 11px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}
.user-menu > div:hover { background: rgba(34, 211, 238, 0.10); color: var(--text); }
@keyframes pop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* -------------------------------- 卡片 --------------------------------- */

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.card::before {
  /* 四角科技感描边 */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(34, 211, 238, 0.34), transparent 34%, transparent 66%, rgba(124, 92, 255, 0.30));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.card h2 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: #cfe6ff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card h2::before {
  content: "";
  width: 3px; height: 13px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.8);
}

.grid { display: grid; gap: 14px; }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.stat {
  position: relative;
  padding: 16px 16px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(34, 211, 238, 0.09), transparent 55%),
    rgba(12, 18, 28, 0.72);
  overflow: hidden;
  transition: transform 0.18s, border-color 0.18s;
}
.stat:hover { transform: translateY(-2px); border-color: rgba(34, 211, 238, 0.34); }
.stat .k {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
}
.stat .v {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #f2f9ff;
  font-variant-numeric: tabular-nums;
}
.stat .v small { font-family: var(--sans); font-size: 12px; color: var(--muted); font-weight: 400; margin-left: 4px; }
.stat .spark {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 30px;
  margin-top: 12px;
}
.stat .spark i {
  flex: 1;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.95), rgba(124, 92, 255, 0.35));
  box-shadow: 0 0 12px -2px rgba(34, 211, 238, 0.55);
  animation: rise 0.6s cubic-bezier(0.2, 0.9, 0.2, 1) backwards;
}
@keyframes rise { from { transform: scaleY(0.1); opacity: 0.2; } to { transform: none; opacity: 1; } }

/* 侧栏小指标（dashboard 用） */
.kv { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px dashed rgba(120, 160, 220, 0.12); font-size: 13px; }
.kv:last-child { border-bottom: none; }
.kv span:first-child { color: var(--muted); }
.kv span:last-child { font-family: var(--mono); color: var(--text); }

/* -------------------------------- 表格 --------------------------------- */

.table-wrap { overflow: auto; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--dim);
  background: rgba(8, 13, 21, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
tbody td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(120, 160, 220, 0.08);
  vertical-align: middle;
  color: #dbe6f7;
}
tbody tr { transition: background 0.14s; }
tbody tr:hover { background: linear-gradient(90deg, rgba(34, 211, 238, 0.07), rgba(124, 92, 255, 0.05)); }
td .actions { display: flex; gap: 6px; flex-wrap: wrap; }

.empty { color: var(--muted); text-align: center; padding: 44px 16px; font-size: 13px; }
.empty::before {
  content: "";
  display: block;
  width: 44px; height: 44px;
  margin: 0 auto 12px;
  border-radius: 12px;
  border: 1px dashed rgba(120, 200, 255, 0.28);
  background: radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.16), transparent 70%);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 0.55; transform: scale(0.96); } 50% { opacity: 1; transform: scale(1.04); } }

/* 状态标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}
.tag::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: 0.9; }
.tag.ok { color: var(--ok); border-color: rgba(52, 211, 153, 0.34); background: rgba(52, 211, 153, 0.08); }
.tag.warn { color: var(--warn); border-color: rgba(251, 191, 36, 0.34); background: rgba(251, 191, 36, 0.08); }
.tag.danger { color: var(--danger); border-color: rgba(248, 113, 113, 0.34); background: rgba(248, 113, 113, 0.08); }
.tag.brand { color: var(--cyan); border-color: rgba(34, 211, 238, 0.4); background: rgba(34, 211, 238, 0.09); box-shadow: 0 0 16px -6px rgba(34, 211, 238, 0.7); }
.tag.brand::before, .tag.warn::before { animation: blink 1.8s ease-in-out infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

/* 工具条 */
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar input, .toolbar select { width: auto; min-width: 150px; }
.hint { color: var(--muted); font-size: 12px; }
.mono { font-family: var(--mono); letter-spacing: 0.02em; }

/* -------------------------------- 登录 --------------------------------- */

.auth { display: grid; grid-template-columns: 1.05fr 0.95fr; min-height: 100vh; }
@media (max-width: 980px) { .auth { grid-template-columns: 1fr; } .auth-hero { display: none; } }

.auth-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px clamp(32px, 6vw, 96px);
  overflow: hidden;
}
.auth-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(520px 520px at 24% 28%, rgba(34, 211, 238, 0.20), transparent 62%),
    radial-gradient(460px 460px at 78% 74%, rgba(124, 92, 255, 0.22), transparent 62%);
  animation: aurora 20s ease-in-out infinite alternate;
}
.auth-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 190, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 190, 255, 0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at 40% 45%, #000 10%, transparent 72%);
  animation: grid-pan 46s linear infinite;
}
.auth-hero > * { position: relative; z-index: 1; }
.auth-brand { display: flex; align-items: center; gap: 12px; font-size: 17px; font-weight: 750; letter-spacing: 0.06em; }
.auth-brand i {
  width: 30px; height: 30px; border-radius: 9px;
  background: conic-gradient(from 160deg, var(--cyan), var(--violet), var(--magenta), var(--cyan));
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.65);
  animation: spin 12s linear infinite;
}
.auth-title {
  margin: 34px 0 12px;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  background: linear-gradient(96deg, #ffffff, #9fe8ff 48%, #b9a8ff 82%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.auth-desc { color: var(--muted); font-size: 13.5px; max-width: 40ch; line-height: 1.85; }
.auth-points { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 10px; }
.auth-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #b6c6de;
}
.auth-points li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}

.auth-panel { display: grid; place-items: center; padding: 40px 24px; }
.auth-card {
  position: relative;
  width: min(392px, 100%);
  padding: 30px 28px 26px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(11, 17, 26, 0.82);
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 1), 0 0 0 1px rgba(34, 211, 238, 0.06);
}
.auth-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, rgba(34, 211, 238, 0.55), transparent 40%, transparent 62%, rgba(124, 92, 255, 0.5));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.auth-card h1 { margin: 0 0 4px; font-size: 19px; letter-spacing: 0.01em; }
.auth-card > p { margin: 0 0 22px; color: var(--muted); font-size: 12.5px; line-height: 1.7; }

.field { margin-bottom: 14px; }
.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.field input { padding: 11px 13px; }

.auth-actions { display: grid; gap: 9px; margin-top: 20px; }
.auth-actions button { padding: 11px 14px; }
.auth-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed rgba(120, 160, 220, 0.14);
  font-size: 11.5px;
  color: var(--dim);
  line-height: 1.8;
}
.auth-foot b { color: var(--muted); font-weight: 600; }

/* -------------------------------- 弹层 --------------------------------- */

.mask {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(3, 6, 11, 0.72);
  backdrop-filter: blur(8px);
  animation: fade 0.16s ease-out;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.modal {
  width: min(780px, 100%);
  max-height: 86vh;
  overflow: auto;
  padding: 22px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(10, 16, 25, 0.97);
  box-shadow: 0 40px 90px -40px #000;
  animation: sheet 0.2s cubic-bezier(0.2, 0.9, 0.2, 1);
}
@keyframes sheet { from { opacity: 0; transform: translateY(14px) scale(0.985); } to { opacity: 1; transform: none; } }
.modal h3 {
  margin: 0 0 16px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.modal h3::before {
  content: "";
  width: 3px; height: 15px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.8);
}
.modal .row { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.modal .row label { min-width: 104px; font-size: 12px; color: var(--muted); }
.modal .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
pre {
  background: rgba(5, 9, 15, 0.9);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 12px;
  color: #b9d7f0;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  min-width: 200px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(34, 211, 238, 0.34);
  border-left: 3px solid var(--cyan);
  background: rgba(10, 17, 27, 0.96);
  color: var(--text);
  font-size: 13px;
  box-shadow: 0 24px 60px -24px #000, 0 0 30px -10px rgba(34, 211, 238, 0.5);
  animation: slide-in 0.2s ease-out;
}
.toast.err { border-color: rgba(248, 113, 113, 0.5); border-left-color: var(--danger); box-shadow: 0 24px 60px -24px #000, 0 0 30px -10px rgba(248, 113, 113, 0.5); }
@keyframes slide-in { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: none; } }

/* 加载骨架 */
.loading-rows { display: grid; gap: 10px; }
.loading-rows i {
  display: block;
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04), rgba(34,211,238,0.14), rgba(255,255,255,0.04));
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer { from { background-position: 120% 0; } to { background-position: -120% 0; } }

/* 状态灯（侧栏底部） */
.sysbar {
  margin-top: auto;
  display: grid;
  gap: 6px;
  padding: 12px 10px 0;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--dim);
}
.sysbar .row { display: flex; align-items: center; justify-content: space-between; }
.sysbar i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); display: inline-block; margin-right: 6px; }

@media (max-width: 1100px) {
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  #app { display: block; }
  .sidebar {
    position: static;
    width: auto;
    height: auto;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
    gap: 6px;
    padding: 12px;
  }
  .sidebar .logo { padding: 0 12px 0 4px; font-size: 14px; }
  .sidebar .who, .sidebar .sysbar, .nav-group { display: none; }
  .nav-item { white-space: nowrap; padding: 8px 10px; }
  .nav-item.active::before { display: none; }
  .main { padding: 16px 14px 48px; }
  .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .topbar h1 { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ============================================================================
   服务器续费（对齐 yckl 项目：暖米白 + 深红 #b3261e）
   该模块使用独立的浅色作用域 .yk，不影响其余深色科技感页面
   ========================================================================== */
.yk {
  --yk-bg-0: #f4e9e1;
  --yk-bg-1: #ffffff;
  --yk-bg-2: #efe1d7;
  --yk-brand: #b3261e;
  --yk-brand-soft: rgba(179, 38, 30, 0.09);
  --yk-brand-line: rgba(179, 38, 30, 0.5);
  --yk-text: #1e1613;
  --yk-text-sub: #6b5a54;
  --yk-text-dim: #9b8a83;
  --yk-line: rgba(140, 31, 26, 0.13);
  --yk-line-strong: rgba(140, 31, 26, 0.3);
  --yk-ok: #2f7d4f;
  --yk-warn: #c9821f;
  --yk-r-lg: 18px;
  --yk-r-md: 12px;
  --yk-shadow: 0 10px 30px rgba(110, 60, 45, 0.12), 0 2px 6px rgba(110, 60, 45, 0.06);
  --yk-shadow-hover: 0 16px 40px rgba(110, 60, 45, 0.18);

  background: linear-gradient(180deg, var(--yk-bg-0), #f7efe9 60%, var(--yk-bg-2));
  border-radius: var(--yk-r-lg);
  padding: 22px 22px 26px;
  color: var(--yk-text);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.7);
}

.yk * { box-sizing: border-box; }

.yk-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.yk-head h2 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: 0.3px; color: var(--yk-text); }
.yk-head .sub { margin-top: 6px; font-size: 12.5px; color: var(--yk-text-sub); }
.yk-head .actions { display: flex; gap: 8px; }

.yk button {
  font: inherit;
  color: var(--yk-text);
  background: #fff;
  border: 1px solid var(--yk-line);
  border-radius: var(--yk-r-md);
  padding: 8px 14px;
  cursor: pointer;
  transition: all 0.16s ease;
  box-shadow: none;
  backdrop-filter: none;
}
.yk button:hover {
  border-color: var(--yk-line-strong);
  color: var(--yk-brand);
  transform: none;
  box-shadow: 0 6px 16px -10px rgba(110, 60, 45, 0.5);
}
.yk button:disabled { opacity: 0.5; cursor: not-allowed; }
.yk button.primary {
  background: var(--yk-brand);
  border-color: var(--yk-brand);
  color: #fff;
  font-weight: 600;
}
.yk button.primary:hover { background: #9c201a; color: #fff; box-shadow: 0 10px 22px -12px rgba(179, 38, 30, 0.9); }
.yk button.ghost { background: transparent; }
.yk input, .yk select {
  background: #fff;
  border: 1px solid var(--yk-line);
  border-radius: var(--yk-r-md);
  color: var(--yk-text);
  padding: 9px 12px;
}
.yk input:focus, .yk select:focus { border-color: var(--yk-brand-line); box-shadow: 0 0 0 3px rgba(226, 58, 58, 0.07); }

.yk-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 1080px) { .yk-grid { grid-template-columns: 1fr; } }

.yk-panel {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--yk-line);
  border-radius: var(--yk-r-lg);
  padding: 18px 20px;
  box-shadow: var(--yk-shadow);
}
.yk-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--yk-text);
}
.yk-panel-tip { margin: 12px 0 0; font-size: 11.5px; line-height: 1.7; color: var(--yk-text-dim); }

.yk-expire { padding: 6px 0 14px; }
.yk-expire-label { font-size: 12.5px; color: var(--yk-text-sub); }
.yk-expire-date {
  margin-top: 6px;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--yk-text);
  font-variant-numeric: tabular-nums;
}
.yk-expire-date.is-bad { color: var(--yk-brand); }
.yk-expire-days { margin-top: 6px; font-size: 12.5px; color: var(--yk-text-dim); }
.yk-expire-days b { color: var(--yk-text); }
.yk-price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px dashed var(--yk-line);
  padding-top: 12px;
  font-size: 13px;
  color: var(--yk-text-sub);
}
.yk-price { font-size: 20px; font-weight: 700; color: var(--yk-brand); font-variant-numeric: tabular-nums; }
.yk-notice {
  margin-top: 12px;
  padding: 9px 12px;
  border-radius: var(--yk-r-md);
  font-size: 11.5px;
  line-height: 1.7;
}
.yk-notice--warn { background: rgba(201, 130, 31, 0.1); color: #8a5a12; border: 1px solid rgba(201, 130, 31, 0.24); }
.yk-notice--bad { background: var(--yk-brand-soft); color: var(--yk-brand); border: 1px solid rgba(179, 38, 30, 0.24); }

.yk-months { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0 16px; }
.yk-month {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 66px;
  border-radius: var(--yk-r-md);
  border: 1px solid var(--yk-line);
  background: #fff;
  color: var(--yk-text-sub);
  cursor: pointer;
  transition: all 0.16s ease;
  padding: 0;
}
.yk-month b { font-size: 20px; font-weight: 700; color: var(--yk-text); line-height: 1.1; }
.yk-month span { font-size: 11.5px; }
.yk-month:hover { border-color: var(--yk-line-strong); }
.yk-month.on { border-color: var(--yk-brand-line); background: #b3261e14; }
.yk-month.on b { color: var(--yk-brand); }

.yk-pay-amount {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 4px 0 14px;
  font-size: 13px;
  color: var(--yk-text-sub);
}
.yk-pay-amount em {
  font-style: normal;
  font-size: 32px;
  font-weight: 700;
  color: var(--yk-brand);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.yk-pay-btn { width: 100%; height: 44px; font-size: 15px; letter-spacing: 1px; }
.yk-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px;
  border-radius: var(--yk-r-md);
  border: 1px dashed var(--yk-line-strong);
  background: #fffffff5;
  margin-top: 12px;
}
.yk-qr img { width: 200px; height: 200px; display: block; }
.yk-qr .sn { font-size: 11.5px; color: var(--yk-text-dim); font-family: var(--mono); }
.yk-qr .tip { font-size: 11.5px; color: var(--yk-text-dim); }

.yk-table-wrap { overflow: auto; }
.yk table { width: 100%; border-collapse: collapse; font-size: 13px; }
.yk thead th {
  position: static;
  text-align: left;
  padding: 12px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--yk-text-sub);
  background: transparent;
  border-bottom: 1px solid var(--yk-line);
  white-space: nowrap;
}
.yk tbody td {
  padding: 13px 10px;
  border-bottom: 1px solid rgba(140, 31, 26, 0.08);
  color: var(--yk-text);
  vertical-align: middle;
}
.yk tbody tr:hover { background: rgba(179, 38, 30, 0.035); }
.yk .sn { font-family: var(--mono); font-size: 12px; color: var(--yk-text-sub); }
.yk .num { font-variant-numeric: tabular-nums; }
.yk .dim { color: var(--yk-text-dim); }
.yk .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  border: 1px solid transparent;
}
.yk .badge::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }
.yk .badge.ok { color: var(--yk-ok); background: rgba(47, 125, 79, 0.09); border-color: rgba(47, 125, 79, 0.24); }
.yk .badge.warn { color: var(--yk-warn); background: rgba(201, 130, 31, 0.1); border-color: rgba(201, 130, 31, 0.26); }
.yk .badge.off { color: var(--yk-text-dim); background: rgba(155, 138, 131, 0.1); border-color: rgba(155, 138, 131, 0.24); }
.yk .link-btn {
  border: none;
  background: none;
  padding: 0;
  color: var(--yk-brand);
  font-size: 13px;
  cursor: pointer;
  font-weight: 500;
}
.yk .link-btn:hover { text-decoration: underline; box-shadow: none; transform: none; }

.yk-pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  padding-top: 12px;
  font-size: 12px;
  color: var(--yk-text-dim);
}
.yk-merchant-picker { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.yk-merchant-picker select { min-width: 260px; }
.yk-empty { padding: 34px 12px; text-align: center; color: var(--yk-text-dim); font-size: 13px; }
.yk-empty::before { content: none; }