:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-soft: #f7f9fc;
  --surface-blue: #eef6ff;
  --ink: #101828;
  --muted: #5d6678;
  --faint: #8a94a6;
  --line: #d8e0ea;
  --line-soft: #edf1f6;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --cyan: #0891b2;
  --green: #0f8a5f;
  --amber: #b76a00;
  --red: #c83d3d;
  --nav: #111827;
  --nav-2: #1f2937;
  --shadow: 0 22px 55px rgba(15, 23, 42, .10);
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, .06);
  font-family: Inter, "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fbfcfe 0, var(--bg) 360px),
    var(--bg);
  min-width: 320px;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .62; }
a { color: inherit; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 36px 22px;
  background:
    linear-gradient(135deg, rgba(17,24,39,.96) 0%, rgba(30,64,175,.92) 48%, rgba(8,145,178,.88) 100%);
}

.login-shell {
  width: min(980px, 100%);
  min-height: 560px;
  display: grid;
  grid-template-columns: minmax(280px, .95fr) minmax(340px, 1fr);
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.45);
  border-radius: 18px;
  box-shadow: 0 32px 90px rgba(2, 6, 23, .34);
  overflow: hidden;
  backdrop-filter: blur(18px);
}

.login-hero {
  position: relative;
  color: #ffffff;
  padding: 46px 42px;
  background:
    linear-gradient(160deg, rgba(15,23,42,.98), rgba(30,64,175,.78) 58%, rgba(6,95,70,.82));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.login-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.65), rgba(0,0,0,.12));
}

.login-hero > * { position: relative; }

.login-hero-mark,
.login-card-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: 0;
}

.login-hero-mark {
  margin-bottom: auto;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.28);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18);
}

.login-hero-mark img,
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  display: block;
}

.login-card-mark {
  color: var(--blue);
  background: #eef6ff;
  border: 1px solid #d7e8ff;
  margin-bottom: 22px;
}

.login-card-mark.success {
  color: var(--green);
  background: #ecfdf5;
  border-color: #bbf7d0;
}

.login-card-mark.failed {
  color: var(--red);
  background: #fff1f2;
  border-color: #fecdd3;
}

.login-hero h2 {
  margin: 0 0 12px;
  font-size: 36px;
  line-height: 1.12;
  letter-spacing: 0;
}

.login-hero p {
  margin: 0;
  color: rgba(255,255,255,.78);
  line-height: 1.8;
  font-size: 15px;
}

.login-hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.login-hero-grid span {
  min-height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.09);
  font-weight: 800;
  font-size: 13px;
}

.login-card {
  width: 100%;
  background: var(--surface);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 54px 54px 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-card h1 { margin: 0 0 10px; font-size: 28px; letter-spacing: 0; }
.login-card p { margin: 0 0 28px; color: var(--muted); line-height: 1.75; }
.login-submit { width: 100%; height: 44px; }

.setup-shell { width: min(1080px, 100%); }

.result-shell { width: min(900px, 100%); }

.payment-result-lines {
  display: grid;
  gap: 10px;
  margin: 4px 0 22px;
}

.payment-result-lines div {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: var(--surface-soft);
}

.payment-result-lines span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.payment-result-lines strong {
  overflow-wrap: anywhere;
  font-size: 14px;
}

.result-actions { justify-content: flex-start; }
.setup-card { width: 100%; }
.setup-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 14px;
  margin-bottom: 18px;
}
.setup-grid .full { grid-column: 1 / -1; }

.app-shell {
  display: grid;
  grid-template-columns: 264px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background:
    linear-gradient(180deg, #111827 0%, #0f172a 48%, #111827 100%);
  color: #d7e1ee;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  box-shadow: inset -1px 0 0 rgba(255,255,255,.07);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  margin: 2px 10px 26px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 12px 26px rgba(37, 99, 235, .36);
  font-size: 13px;
  overflow: hidden;
  flex: 0 0 auto;
}

.login-hero-mark.brand-mark {
  width: 48px;
  height: 48px;
  margin-bottom: auto;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.28);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18);
}

.brand-settings-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(220px, 1fr);
  gap: 14px;
  align-items: end;
}

.brand-preview {
  min-height: 70px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #f8fbff;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
}

.brand-preview strong,
.brand-preview span { display: block; }

.brand-preview span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.logo-clear { align-self: center; margin-bottom: 10px; }

.nav { display: grid; gap: 7px; }

.nav button {
  width: 100%;
  height: 44px;
  border: 0;
  color: #b8c4d4;
  background: transparent;
  border-radius: 10px;
  padding: 0 12px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.nav button::before {
  content: attr(data-icon);
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #8ea0b8;
  background: rgba(255,255,255,.05);
  font-size: 12px;
}

.nav button.active,
.nav button:hover {
  background: rgba(255,255,255,.10);
  color: #ffffff;
}

.nav button.active {
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.12), 0 10px 24px rgba(0,0,0,.18);
}

.nav button.active::before,
.nav button:hover::before { color: #ffffff; background: rgba(37,99,235,.70); }

.sidebar-footer {
  margin-top: auto;
  color: #91a0b5;
  font-size: 12px;
  line-height: 1.7;
  padding: 16px 10px 2px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.content {
  padding: 30px 32px 42px;
  max-width: 1680px;
  width: 100%;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 6px;
}

.topbar h1 { margin: 0; font-size: 30px; letter-spacing: 0; }
.topbar .sub { color: var(--muted); margin-top: 6px; font-size: 13px; }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }

.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.stat {
  min-height: 118px;
  background: var(--surface);
  border: 1px solid rgba(216, 224, 234, .82);
  border-radius: 12px;
  padding: 17px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat span { color: var(--muted); font-size: 12px; font-weight: 700; }
.stat strong { font-size: 32px; letter-spacing: 0; }
.stat small { color: var(--faint); font-size: 12px; }
.stat.total {
  color: #ffffff;
  background: linear-gradient(135deg, #1d4ed8, #0891b2);
  border-color: transparent;
  box-shadow: 0 18px 44px rgba(37, 99, 235, .26);
}
.stat.total span,
.stat.total small { color: rgba(255,255,255,.76); }
.stat .small-strong,
.small-strong { font-size: 18px; line-height: 1.3; }
.user-stats .stat strong { overflow-wrap: anywhere; }

.security-warning {
  min-height: 48px;
  margin: -6px 0 18px;
  padding: 12px 14px;
  border: 1px solid #f2c66d;
  border-radius: 12px;
  background: #fff8e6;
  color: #7a4b00;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.security-warning span { color: #8a6114; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.toolbar-left,
.toolbar-right { display: flex; align-items: center; gap: 8px; }
.search { width: 420px; }

.panel {
  background: var(--surface);
  border: 1px solid rgba(216, 224, 234, .86);
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  overflow-x: auto;
}

.panel + .panel { margin-top: 16px; }

.panel-head {
  min-height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, #ffffff, var(--surface-soft));
}

.panel-head h2 { margin: 0; font-size: 17px; }
.panel-head p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.panel-body { padding: 20px; }
.compact-panel { max-width: 960px; }

.node-access { display: grid; gap: 18px; }

.user-node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.user-node-card {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  box-shadow: var(--shadow-soft);
}

.user-node-card:hover {
  border-color: #cbd9eb;
  box-shadow: 0 16px 38px rgba(15, 23, 42, .08);
}

.user-node-card header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.user-node-card header div { display: grid; gap: 5px; min-width: 0; }
.user-node-card header span { color: var(--muted); font-size: 12px; font-weight: 800; }
.user-node-card header strong { font-size: 18px; overflow-wrap: anywhere; }
.node-renew-summary { margin-bottom: 0; }

.node-admin-list { display: grid; gap: 12px; }

.node-admin-item {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 160px 150px 82px minmax(260px, auto);
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface-soft);
}

.node-admin-item strong,
.node-admin-item b { display: block; overflow-wrap: anywhere; }
.node-admin-item span:not(.status),
.node-admin-item small { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }

.node-profile {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: linear-gradient(135deg, #f8fbff, #f4fbf8);
}

.node-name-block { display: grid; gap: 5px; min-width: 0; }
.node-name-block span,
.node-meta-grid span,
.node-link-card label,
.node-qr-card label { color: var(--muted); font-size: 12px; font-weight: 800; }
.node-name-block strong { font-size: 24px; overflow-wrap: anywhere; }

.node-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.node-meta-grid div {
  min-height: 82px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: var(--surface-soft);
}

.node-meta-grid strong { font-size: 16px; overflow-wrap: anywhere; }
.node-access-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 16px; align-items: stretch; }
.node-link-card,
.node-qr-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #ffffff;
}

.node-action-box {
  min-height: 126px;
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 18px;
  text-align: center;
  border: 1px dashed #cfd8e6;
  border-radius: 12px;
  background: #f8fafc;
}

.node-action-box span { color: var(--muted); font-size: 12px; }
.node-action-box .btn { min-width: 132px; }

.node-link-box {
  width: 100%;
  min-height: 126px;
  resize: vertical;
  color: #1f2937;
  background: #f8fafc;
  word-break: break-all;
}

.node-qr {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #f8fafc;
}

.node-qr img { width: min(220px, 88%); height: auto; display: block; }
.empty-qr { color: var(--muted); font-weight: 800; }

.card-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.card-group {
  background: var(--surface);
  border: 1px solid rgba(216, 224, 234, .86);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow-soft);
}

.card-group-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.card-group-head h2 { margin: 0; font-size: 16px; }
.card-group-head p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }

.card-group-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.copy-area {
  width: 100%;
  min-height: 132px;
  resize: vertical;
  white-space: pre;
}

table {
  width: 100%;
  min-width: 1120px;
  border-collapse: collapse;
  table-layout: fixed;
}

th, td {
  border-bottom: 1px solid var(--line-soft);
  padding: 15px 14px;
  text-align: left;
  vertical-align: middle;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

th {
  color: #536174;
  background: #f8fafc;
  font-size: 12px;
  font-weight: 800;
}

tbody tr { transition: background .14s ease; }
tbody tr:hover { background: #f8fbff; }
tr:last-child td { border-bottom: 0; }

.main-cell strong { display: block; font-size: 14px; margin-bottom: 4px; }
.main-cell .line { display: flex; gap: 6px; align-items: center; color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.muted { color: var(--muted); }
.empty { text-align: center; color: var(--muted); padding: 42px; }

.status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.status.active { color: var(--green); background: #e8f7ef; }
.status.warning { color: var(--amber); background: #fff3dc; }
.status.expired,
.status.disabled,
.status.failed { color: var(--red); background: #ffeaea; }
.status.success { color: var(--green); background: #e8f7ef; }

.success-text { color: var(--green); }
.danger-text { color: var(--red); }

.finance-orders,
.finance-mini-grid > div {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #ffffff;
}

.finance-orders h3,
.finance-mini-grid h3 {
  margin: 0 0 10px;
  font-size: 14px;
}

.finance-orders h3,
.finance-mini-grid > div h3 { padding: 14px 14px 0; }

.finance-orders table,
.finance-mini-grid table { min-width: 620px; }

.btn {
  border: 1px solid #d6dee9;
  background: var(--surface);
  color: var(--ink);
  border-radius: 10px;
  height: 38px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  white-space: nowrap;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(16,24,40,.04);
  transition: transform .14s ease, box-shadow .14s ease, background .14s ease, border-color .14s ease;
}

.btn:hover { border-color: #b8c4d5; background: #fbfcfe; box-shadow: 0 8px 18px rgba(15, 23, 42, .08); transform: translateY(-1px); }
.btn:disabled:hover { transform: none; box-shadow: 0 1px 2px rgba(16,24,40,.04); }
.btn.primary { background: linear-gradient(135deg, var(--blue), #0891b2); color: white; border-color: transparent; box-shadow: 0 10px 24px rgba(37, 99, 235, .22); }
.btn.primary:hover { background: linear-gradient(135deg, var(--blue-dark), #0e7490); border-color: transparent; }
.btn.danger { color: var(--red); border-color: #efb9b9; }
.btn.danger:hover { background: #fff5f5; }
.btn.danger.solid { background: var(--red); color: white; border-color: var(--red); }
.btn.danger.solid:hover { background: #b91c1c; border-color: #b91c1c; }
.btn.small { height: 30px; padding: 0 9px; font-size: 12px; border-radius: 7px; }
.btn.icon { width: 36px; padding: 0; font-size: 18px; }
.btn.large-btn { height: 88px; font-size: 18px; }
.btn.loading::before {
  content: '';
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 999px;
  animation: spin .72s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
.row-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-size: 12px;
  color: #3d4856;
  font-weight: 800;
  margin-bottom: 7px;
}

input, select, textarea {
  width: 100%;
  height: 42px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0 12px;
  color: var(--ink);
  background: white;
  outline: none;
  transition: border-color .14s ease, box-shadow .14s ease, background .14s ease;
}

input:disabled, select:disabled, textarea:disabled { background: #f3f6fa; color: #7b8797; }

input:focus, select:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23,105,224,.12);
}

textarea { height: 78px; resize: vertical; padding: 10px 11px; }
input[type="checkbox"] { width: auto; height: auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.check-row { display: flex; align-items: center; gap: 8px; height: 40px; color: var(--ink); }
.amount-options { display: flex; flex-wrap: wrap; gap: 8px; }
.amount-options .btn.active {
  border-color: rgba(34, 211, 238, .88);
  background: rgba(14, 165, 233, .10);
  box-shadow: 0 8px 20px rgba(37, 99, 235, .12);
}
.finance-orders { margin-bottom: 18px; }
.payment-checks { margin-bottom: 14px; }

.recharge-form {
  display: grid;
  gap: 16px;
}

.recharge-amount-row {
  display: grid;
  grid-template-columns: minmax(280px, 1.45fr) minmax(220px, .75fr);
  gap: 14px;
  align-items: end;
}

.pay-method-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(118px, 1fr));
  gap: 10px;
}

.pay-method-card {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(148, 163, 184, .42);
  border-radius: 8px;
  background: rgba(255, 255, 255, .94);
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
  transition: border-color .14s ease, box-shadow .14s ease, transform .14s ease, background .14s ease;
}

.pay-method-card:hover {
  border-color: rgba(20, 184, 166, .65);
  transform: translateY(-1px);
}

.pay-method-card.active {
  border-color: rgba(34, 211, 238, .95);
  background: linear-gradient(135deg, rgba(37, 99, 235, .12), rgba(20, 184, 166, .16));
  box-shadow: 0 10px 24px rgba(37, 99, 235, .16);
}

.pay-method-icon {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: #fff;
  border: 1px solid rgba(148, 163, 184, .26);
  overflow: hidden;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
}

.pay-method-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.recharge-actions {
  display: flex;
  justify-content: center;
}

.recharge-actions .btn {
  min-width: min(360px, 100%);
}

.pay-method-card:disabled {
  cursor: not-allowed;
  opacity: .68;
  transform: none;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .50);
  display: grid;
  place-items: center;
  padding: 24px;
  z-index: 30;
  animation: fadeIn .16s ease;
}

.drawer {
  width: min(920px, 100%);
  max-height: calc(100vh - 48px);
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 16px;
  box-shadow: 0 34px 86px rgba(15,23,42,.34);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: popIn .18s ease;
}

.drawer header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.drawer header h2 { margin: 0; font-size: 18px; }
.drawer-body { padding: 20px 24px 26px; overflow: auto; }
.drawer footer {
  padding: 16px 24px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background: #f8fafc;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .50);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 30;
  animation: fadeIn .16s ease;
}

.modal-card {
  width: min(440px, 100%);
  max-height: calc(100vh - 40px);
  overflow: auto;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 16px;
  box-shadow: 0 34px 86px rgba(15,23,42,.34);
  padding: 22px;
  animation: popIn .18s ease;
}

.modal-icon {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  background: #eef5ff;
  color: var(--blue);
  font-weight: 900;
}

.modal-icon.danger { background: #fff1f1; color: var(--red); }

.modal-content h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.modal-content p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.modal-field { margin-top: 16px; margin-bottom: 0; }

.modal-qr {
  margin-top: 16px;
  display: grid;
  place-items: center;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #f8fafc;
}

.modal-qr img { width: min(260px, 100%); height: auto; display: block; }

.modal-card footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

.form-section {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 16px 16px 4px;
  margin-bottom: 16px;
  background: linear-gradient(180deg, #ffffff, #fbfcfe);
}

.section-title {
  font-size: 13px;
  font-weight: 900;
  color: #263244;
  margin: 0 0 12px;
}

.form-note {
  background: #f1f6ff;
  border: 1px solid #cfe0f8;
  border-radius: 10px;
  padding: 11px 12px;
  color: #45566f;
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 14px;
}

.settings-panel { max-width: 1160px; }
.settings-form { max-width: 100%; }
.form-actions {
  display: flex;
  justify-content: flex-end;
  padding-top: 4px;
}

.payment-provider-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 14px;
}

.payment-provider-switcher {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: start;
}

.payment-provider {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: #ffffff;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .03);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease, background .18s ease;
}

.payment-provider.active {
  grid-column: 1 / -1;
  border-color: rgba(34, 211, 238, .62);
  background: linear-gradient(135deg, rgba(255, 255, 255, .98), rgba(236, 254, 255, .94));
  box-shadow: 0 18px 42px rgba(15, 23, 42, .12), 0 0 0 1px rgba(34, 211, 238, .14) inset;
}

.payment-provider.disabled { background: #fbfcfe; opacity: .72; }
.payment-provider.active.disabled { opacity: .9; }

.payment-provider-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.payment-provider-select {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 0;
  text-align: left;
  width: 100%;
}

.payment-provider-select:focus-visible {
  outline: 2px solid rgba(34, 211, 238, .75);
  outline-offset: 5px;
  border-radius: 8px;
}

.payment-provider-head h3 {
  margin: 0;
  font-size: 16px;
}

.payment-provider-head p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.payment-provider-fields { margin-top: 14px; }
.payment-provider-fields.hidden { display: none; }

.mini-checks {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.mini-checks label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-weight: 700;
}

.redeem-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.redeem-form .field { margin-bottom: 0; }

.renew-panel { margin-top: 14px; }

.renew-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.renew-summary div {
  border: 1px solid var(--line-soft);
  background: var(--surface-soft);
  border-radius: 12px;
  padding: 14px;
}

.renew-summary span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 6px;
}

.renew-summary strong {
  display: block;
  font-size: 15px;
  overflow-wrap: anywhere;
}

.toast {
  position: fixed;
  left: 50%;
  top: 18px;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #0f172a, #1d4ed8);
  color: white;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: 0 20px 56px rgba(15, 23, 42, .30);
  z-index: 60;
  width: max-content;
  max-width: min(620px, calc(100vw - 28px));
  font-weight: 800;
  line-height: 1.5;
  text-align: center;
  animation: toastDrop .18s ease;
}

@keyframes toastDrop { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }

.log-detail {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 4px;
}

@media (max-width: 1280px) {
  .content { padding: 22px; }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .search { width: 340px; }
}

@media (max-width: 900px) {
  .login-wrap { padding: 18px; }
  .login-shell { grid-template-columns: 1fr; min-height: auto; border-radius: 16px; }
  .login-hero { min-height: 260px; padding: 30px; }
  .login-hero h2 { font-size: 30px; }
  .login-card { padding: 30px; }
  .setup-grid { grid-template-columns: 1fr; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    padding: 14px;
  }
  .brand { margin-bottom: 12px; }
  .nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }
  .nav button {
    justify-content: center;
    padding: 0 8px;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .nav button::before { display: none; }
  .sidebar-footer { display: none; }
  .content { padding: 18px; }
  .topbar { flex-direction: column; }
  .actions { justify-content: flex-start; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar { align-items: stretch; flex-direction: column; }
  .toolbar-left,
  .toolbar-right { width: 100%; }
  .search { width: 100%; }
  .drawer { width: 100%; max-width: 100vw; }
  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }
  .node-profile { align-items: flex-start; flex-direction: column; }
  .node-meta-grid,
  .node-access-grid { grid-template-columns: 1fr; }
  .user-node-grid,
  .node-admin-item { grid-template-columns: 1fr; }
  .node-qr-card { max-width: none; width: 100%; }
  .recharge-amount-row { grid-template-columns: 1fr; }
  .pay-method-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .redeem-form { grid-template-columns: 1fr; }
  .renew-summary { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .login-wrap { padding: 12px; }
  .login-shell { border-radius: 14px; }
  .login-hero { min-height: 220px; padding: 24px; }
  .login-hero h2 { font-size: 26px; }
  .login-hero-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .login-card { padding: 26px 22px; }
  .content { padding: 14px; }
  .topbar h1 { font-size: 24px; }
  .actions { width: 100%; }
  .actions .btn { flex: 1 1 calc(50% - 8px); }
  .stats { grid-template-columns: 1fr; }
  .stat { min-height: 96px; }
  .stat strong { font-size: 26px; }
  .panel-head { align-items: flex-start; flex-direction: column; gap: 10px; }
  .panel-body { padding: 16px; }
  .user-node-grid { grid-template-columns: minmax(0, 1fr); }
  .user-node-card { padding: 16px; }
  .node-name-block strong { font-size: 20px; }
  .node-action-box { min-height: 112px; padding: 14px; }
  .node-action-box .btn { width: 100%; }
  .amount-options .btn { flex: 1 1 calc(33.333% - 8px); }
  .pay-method-grid { grid-template-columns: 1fr; }
  .pay-method-card { justify-content: flex-start; padding: 0 14px; }
  .recharge-actions .btn { width: 100%; }
  .drawer-backdrop,
  .modal-backdrop { padding: 12px; }
  .drawer { max-height: calc(100vh - 24px); border-radius: 14px; }
  .drawer header,
  .drawer-body,
  .drawer footer { padding-left: 16px; padding-right: 16px; }
  .modal-card footer { flex-direction: column-reverse; }
  .modal-card footer .btn { width: 100%; }
  .toast { top: 12px; width: calc(100vw - 24px); max-width: none; }
}