:root {
  color-scheme: light;
  --bg-app: #edf3f9;
  --bg-surface: #ffffff;
  --bg-muted: #f4f8fc;
  --bg-sidebar: #072744;
  --text-primary: #10233f;
  --text-secondary: #526681;
  --text-inverse: #f4f9ff;
  --backdrop: rgba(7, 14, 22, 0.68);
  --modal-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --toast-bg: #17212d;
  --toast-text: #ffffff;
  --toast-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  --border: #d5e0ea;
  --border-strong: #91a8bc;
  --accent: #006cc8;
  --accent-ink: #006cc8;
  --accent-hover: #0057a4;
  --accent-soft: #e5f2ff;
  --accent-contrast: #f4f9ff;
  --success: #007260;
  --warning: #925700;
  --warning-soft: #fff0d0;
  --danger: #b33338;
  --danger-soft: #fde8e9;
  --info: #0067b7;
  --focus: #ffbd2e;
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --control-height: 36px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-variant-numeric: tabular-nums;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg-app); color: var(--text-primary); }
body { min-width: 320px; font-size: 14px; }
button, input, select, textarea { font: inherit; color: inherit; }
button, a, select, input, textarea { outline: none; }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 70%, transparent); }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
a { color: var(--accent-ink); text-decoration: none; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: var(--space-2); font-size: 24px; line-height: 1.25; }
h2 { margin-bottom: var(--space-3); font-size: 18px; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ui-icon { width: 18px; height: 18px; flex: 0 0 auto; }

.button {
  min-height: var(--control-height);
  padding: 0 var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  font-weight: 700;
  white-space: nowrap;
  transition: border-color .12s ease, background-color .12s ease, transform .12s ease;
}
.button:hover { border-color: var(--accent); }
.button:active { transform: translateY(1px); }
.button.primary { border-color: var(--accent); background: var(--accent); color: var(--accent-contrast); }
.button.primary:hover { background: var(--accent-hover); }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }
.field { display: grid; gap: 6px; }
.field > span { color: var(--text-secondary); font-size: 13px; font-weight: 700; }
.field input, .field select, .field textarea {
  width: 100%;
  min-height: var(--control-height);
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
}
.status { display: inline-flex; min-height: 22px; align-items: center; padding: 2px 7px; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: 12px; font-weight: 800; white-space: nowrap; }
.status.info { background: var(--accent-soft); color: var(--info); }
.status.neutral { border-color: var(--border); background: var(--bg-muted); color: var(--text-secondary); }
.brand-mark { display: grid; width: 30px; height: 30px; flex: 0 0 auto; place-items: center; border: 1px solid color-mix(in srgb, var(--text-inverse) 32%, transparent); border-radius: var(--radius-sm); background: color-mix(in srgb, var(--accent) 76%, var(--bg-sidebar)); color: var(--text-inverse) !important; font-size: 11px !important; font-weight: 900; letter-spacing: .03em; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-4); }
.page-header p { margin-bottom: 0; color: var(--text-secondary); }
.card { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-surface); }
.card-body { padding: var(--space-4); }
.toast { position: fixed; right: 20px; bottom: 20px; z-index: 80; max-width: min(420px, calc(100vw - 40px)); padding: 12px 16px; border-radius: var(--radius-sm); background: var(--toast-bg); color: var(--toast-text); box-shadow: var(--toast-shadow); opacity: 0; transform: translateY(12px); pointer-events: none; transition: .2s ease; }
.toast.show { opacity: 1; transform: translateY(0); }

.h5-stage { min-height: 100dvh; background: color-mix(in srgb, var(--bg-app) 92%, var(--bg-sidebar)); }
.h5-app { width: min(100%, 1024px); min-height: 100dvh; margin: 0 auto; padding-bottom: 70px; background: var(--bg-app); box-shadow: 0 0 0 1px var(--border); }
.h5-topbar { position: sticky; top: 0; z-index: 10; display: grid; min-height: 64px; grid-template-columns: minmax(190px, 1fr) auto minmax(360px, 1fr); align-items: center; gap: var(--space-3); padding: 8px 14px; border-bottom: 1px solid color-mix(in srgb, var(--accent-contrast) 24%, transparent); background: var(--accent); color: var(--accent-contrast); }
.h5-brand { display: flex; min-width: 0; align-items: center; gap: 9px; }
.h5-brand strong, .h5-brand span { display: block; }
.h5-brand span { color: var(--accent-contrast); font-size: 11px; }
.h5-topbar-tools { display: flex; min-width: 0; justify-content: flex-end; gap: 6px; }
.terminal-network { display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--accent-contrast); }
.terminal-network span { font-size: 13px; }
.terminal-network strong { padding-left: 10px; border-left: 1px solid color-mix(in srgb, var(--accent-contrast) 35%, transparent); font-size: 13px; }
.operator-chip { display: flex; min-height: 48px; align-items: center; gap: 7px; padding: 0 12px; border: 1px solid color-mix(in srgb, var(--accent-contrast) 38%, transparent); border-radius: var(--radius-sm); color: var(--accent-contrast); font-weight: 800; }
.operator-chip b { font-variant-numeric: tabular-nums; }
.operator-chip.unidentified { border-color: color-mix(in srgb, var(--warning) 75%, var(--accent-contrast)); background: color-mix(in srgb, var(--warning) 22%, transparent); }
.operator-chip.expiring { border-color: var(--warning); background: var(--warning-soft); color: var(--warning); }
.h5-topbar .topbar-switch { min-height: 48px; border-color: color-mix(in srgb, var(--accent-contrast) 45%, transparent); background: var(--bg-surface); color: var(--text-primary); }
.h5-content { padding: 14px; }
.h5-app .button, .h5-app input, .h5-app select, .h5-app textarea { min-height: 48px; }
.h5-app .button.primary { min-height: 56px; }
.h5-shift { display: flex; min-height: 116px; align-items: center; justify-content: space-between; gap: var(--space-4); padding: 18px 20px; border: 1px solid var(--accent); border-left-width: 5px; border-radius: var(--radius-md); background: color-mix(in srgb, var(--accent-soft) 60%, var(--bg-surface)); }
.h5-shift h1 { margin: 3px 0 4px; font-size: 25px; }
.h5-shift p, .h5-shift span { margin: 0; color: var(--text-secondary); }
.h5-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); margin-top: var(--space-4); }
.h5-action-card { display: grid; min-height: 106px; grid-template-columns: 58px minmax(0, 1fr); align-items: center; gap: 14px; padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-surface); text-align: left; box-shadow: 0 3px 10px color-mix(in srgb, var(--accent) 7%, transparent); }
.h5-action-card:hover { border-color: var(--accent); background: var(--accent-soft); }
.h5-action-card.primary { border-width: 2px; border-color: var(--accent); background: var(--accent-soft); }
.h5-action-icon { display: grid; width: 54px; height: 54px; place-items: center; border: 1px solid var(--border); border-radius: var(--radius-md); color: var(--accent-ink); background: var(--bg-muted); }
.h5-action-icon .ui-icon { width: 31px; height: 31px; }
.h5-action-card strong, .h5-action-card span { display: block; }
.h5-action-card strong { margin-bottom: 8px; font-size: 20px; }
.h5-action-card span { color: var(--text-secondary); font-size: 13px; }
.h5-task { width: 100%; padding: var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-surface); text-align: left; }
.h5-task + .h5-task { margin-top: var(--space-3); }
.h5-task header { display: flex; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-2); }
.h5-task p { margin-bottom: var(--space-2); }
.h5-scope-fields { display: grid; gap: var(--space-3); margin-bottom: var(--space-4); }
.h5-carrier-grid { display: grid; gap: var(--space-4); margin-bottom: var(--space-4); }
.h5-carrier-option { display: block; }
.h5-carrier-qr { margin-top: var(--space-4); }
.field-help { display: block; margin-top: 5px; color: var(--text-secondary); font-size: 13px; line-height: 1.45; }
.technical-details { margin-top: var(--space-2); border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-muted); }
.technical-details summary { padding: 9px 11px; color: var(--text-secondary); cursor: pointer; font-size: 13px; font-weight: 800; }
.technical-details > .field, .technical-details > code { margin: 0; padding: 0 11px 11px; }
.technical-details > code { display: block; overflow-wrap: anywhere; white-space: pre-wrap; color: var(--text-secondary); font-size: 12px; }
.h5-flow-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-2); margin: 0 0 var(--space-4); padding: 0; list-style: none; }
.h5-flow-steps li { display: flex; min-height: 44px; align-items: center; gap: 7px; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-muted); color: var(--text-secondary); font-size: 13px; font-weight: 800; }
.h5-flow-steps li > span { display: grid; width: 24px; height: 24px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--border); color: var(--text-primary); }
.h5-flow-steps li.done { border-color: var(--accent); color: var(--accent-ink); }
.h5-flow-steps li.done > span, .h5-flow-steps li.current > span { background: var(--accent); color: var(--accent-contrast); }
.h5-flow-steps li.current { border-color: var(--accent); background: var(--accent-soft); color: var(--text-primary); }
.h5-confirm-summary { display: grid; gap: 4px; margin: var(--space-4) 0; padding: 12px 14px; border: 1px solid var(--accent); border-left-width: 4px; background: var(--accent-soft); }
.h5-confirm-summary > div { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); }
.h5-confirm-summary h3 { margin: 0; font-size: 16px; }
.h5-confirm-summary p, .h5-confirm-summary small { margin: 0; }
.h5-confirm-summary small, .h5-next-step { color: var(--text-secondary); line-height: 1.45; }
.h5-form-group { min-width: 0; margin: var(--space-4) 0 0; padding: var(--space-3); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.h5-form-group legend { padding: 0 6px; color: var(--text-primary); font-weight: 800; }
.h5-form-group .button-row { margin-top: var(--space-3); }
.h5-group-label { align-self: center; color: var(--text-secondary); font-size: 13px; font-weight: 700; }
details summary:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 70%, transparent); }
.h5-bottom-nav { position: fixed; left: 50%; bottom: 0; z-index: 20; display: grid; grid-template-columns: repeat(4, 1fr); width: min(100%, 1024px); transform: translateX(-50%); border-top: 1px solid var(--border); background: var(--bg-surface); }
.h5-bottom-nav button { display: flex; min-height: 64px; align-items: center; justify-content: center; gap: 8px; border: 0; border-top: 3px solid transparent; background: transparent; color: var(--text-primary); font-weight: 800; }
.h5-bottom-nav button.active { border-top-color: var(--accent); color: var(--accent-ink); background: var(--accent-soft); }
.session-warning { margin-bottom: var(--space-3); padding: 10px 14px; border: 1px solid var(--warning); border-left-width: 5px; background: var(--warning-soft); color: var(--warning); font-weight: 800; }
.operator-auth-backdrop { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center; padding: 24px; background: var(--backdrop); }
.operator-auth-dialog { width: min(100%, 560px); padding: 24px; border: 1px solid var(--border-strong); border-radius: var(--radius-lg); background: var(--bg-surface); box-shadow: var(--modal-shadow); }
.operator-auth-dialog > header { display: flex; align-items: center; gap: 14px; }
.operator-auth-dialog > header p { margin: 0 0 4px; color: var(--text-secondary); font-size: 13px; font-weight: 800; }
.operator-auth-dialog > header h1 { margin: 0; font-size: 28px; }
.auth-instruction { margin: 18px 0 12px; color: var(--text-secondary); }
.scan-waiting { display: grid; min-height: 150px; place-items: center; align-content: center; gap: 7px; border: 2px solid var(--accent); background: var(--accent-soft); text-align: center; }
.scan-waiting .ui-icon { width: 42px; height: 42px; color: var(--accent-ink); }
.scan-waiting strong { font-size: 22px; }
.scan-waiting small { color: var(--text-secondary); }
.auth-alternatives { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.auth-alternatives.pin-only { grid-template-columns: 1fr; }
.auth-alternatives button { min-height: 48px; border: 1px solid var(--border-strong); background: var(--bg-muted); color: var(--text-primary); font-weight: 800; }
.auth-network { margin: 14px 0 0; color: var(--success); font-size: 13px; text-align: center; }
.auth-network.offline, .terminal-network.offline { color: var(--warning-soft); }
.auth-error, .auth-notice { margin: 14px 0 0; padding: 10px 12px; border-left: 4px solid var(--danger); background: var(--danger-soft); color: var(--danger); font-weight: 800; }
.auth-notice { border-left-color: var(--info); background: var(--accent-soft); color: var(--accent-ink); }
.scan-waiting.busy { border-style: dashed; }
.pin-auth-form { display: grid; gap: var(--space-3); margin-top: var(--space-4); }
.pin-auth-form .field { margin: 0; }
.auth-form-actions { display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; }
.auth-form-actions .button { min-height: 52px; }
.external-auth-panel { display: grid; justify-items: center; gap: 12px; margin-top: var(--space-4); text-align: center; }
.external-auth-panel p { max-width: 42ch; margin: 0; color: var(--text-secondary); }
.external-auth-qr { width: 224px; height: 224px; border: 10px solid var(--bg-surface); outline: 1px solid var(--border-strong); image-rendering: pixelated; }
.external-auth-link { display: inline-flex; align-items: center; justify-content: center; }
.auth-retry { width: 100%; margin-top: var(--space-4); }
.task-complete-release { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); padding: 12px 14px; border: 1px solid var(--accent); background: var(--accent-soft); }
.task-complete-release strong, .task-complete-release span { display: block; }
.task-complete-release span { margin-top: 3px; color: var(--text-secondary); }
.h5-empty-state { display: grid; min-height: 420px; place-items: center; align-content: center; gap: var(--space-3); padding: var(--space-6); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-surface); text-align: center; }
.h5-empty-state h1, .h5-empty-state p { margin: 0; }
.h5-empty-state p { max-width: 48ch; color: var(--text-secondary); }
.unauthenticated-home { margin-top: var(--space-4); }
.scan-frame { display: grid; min-height: 260px; place-items: center; border: 3px solid var(--border-strong); border-radius: var(--radius-lg); background: var(--bg-sidebar); color: var(--text-inverse); text-align: center; }
.scan-frame strong { display: block; margin-bottom: 8px; font-size: 22px; }
.confirm-summary { margin: var(--space-4) 0; padding: var(--space-4); border: 2px solid var(--border-strong); border-radius: var(--radius-md); background: var(--bg-surface); }
.sticky-action { position: static; display: grid; gap: var(--space-2); margin-top: var(--space-5); padding: var(--space-3); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--bg-surface); }

@media (max-width: 760px) {
  .h5-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .h5-flow-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .h5-topbar { grid-template-columns: 1fr auto; }
  .terminal-network { display: none; }
  .task-complete-release { grid-template-columns: 1fr 1fr; }
  .task-complete-release > div { grid-column: 1 / -1; }
}

@media (min-width: 761px) {
  .h5-content { padding: var(--space-5); }
  .h5-action-card { min-height: 106px; }
  .h5-scope-fields { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .h5-carrier-grid { grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr); align-items: start; }
  .h5-content-h5-tasks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
  .h5-content-h5-tasks > .page-header { grid-column: 1 / -1; }
  .h5-content-h5-tasks .h5-task + .h5-task { margin-top: 0; }
  .h5-content-h5-scan { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(320px, .65fr); gap: var(--space-4); align-items: start; }
  .h5-content-h5-scan > .page-header { grid-column: 1 / -1; }
  .h5-content-h5-scan > .card { margin-top: 0 !important; }
  .h5-content-h5-confirm { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: var(--space-4); align-items: start; }
  .h5-content-h5-confirm > .page-header, .h5-content-h5-confirm > .sticky-action { grid-column: 1 / -1; }
  .h5-content-h5-confirm > .confirm-summary { margin: 0; }
  .h5-content-h5-confirm > .sticky-action { grid-template-columns: minmax(0, 1fr) auto; align-items: center; margin-top: 0; }
  .h5-content-h5-confirm > .sticky-action p { margin-bottom: 0; }
}

@media (max-width: 420px) {
  .h5-topbar { grid-template-columns: 1fr; min-height: auto; align-items: stretch; gap: 6px; }
  .h5-topbar-tools { justify-content: space-between; gap: 6px; }
  .operator-chip { min-width: 0; flex: 1 1 auto; padding: 0 8px; }
  .operator-chip span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .h5-topbar .topbar-switch { flex: 0 0 auto; }
  .h5-card-grid { grid-template-columns: 1fr; }
  .h5-action-card { min-height: 106px; }
  .auth-alternatives { grid-template-columns: 1fr; }
  .operator-auth-dialog { padding: 18px; }
  .external-auth-qr { width: 190px; height: 190px; }
}

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