:root {
  color-scheme: light;
  --page: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #f7f9fd;
  --text: #1b2b43;
  --muted: #5e7089;
  --line: #e0e7f1;
  --blue: #245fe5;
  --blue-dark: #194dcb;
  --blue-soft: #edf3ff;
  --danger: #a62f35;
  --danger-soft: #fff4f3;
  --radius: 24px;
  --shadow: 0 10px 34px rgb(30 55 100 / 5%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--page); color: var(--text); font-size: 17px; line-height: 1.7; }
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; }
h1, h2, h3, p, dl, dd { margin: 0; }
h2 { font-size: 26px; font-weight: 750; letter-spacing: -.5px; line-height: 1.4; }
h3 { font-size: 18px; font-weight: 700; }
[hidden] { display: none !important; }
::selection { background: #dbe8ff; color: #173d8c; }
:focus-visible { outline: 3px solid #8ab5ff; outline-offset: 4px; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
.icon { display: inline-block; width: 24px; height: 24px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.connection-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.connection-heading > .card-heading { min-width: 0; }
.connection-badges { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; margin-left: auto; max-width: 50%; }
.connection-badges .badge { max-width: 100%; overflow-wrap: anywhere; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 10px; font-size: 13px; font-weight: 600; }
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: .75; }
.badge-neutral { background: var(--surface-soft); color: var(--muted); }
.badge-blue { background: var(--blue-soft); color: var(--blue); border-color: #d5e3ff; }
.page-shell { max-width: 1104px; margin: 0 auto; padding: 32px 32px 0; }
.page-intro { display: none; }

.status-panel { display: flex; align-items: center; gap: 16px; background: #eaf1ff; border: 1px solid #dbe6fc; border-radius: 18px; padding: 20px 24px; }
.status-dot { width: 10px; height: 10px; flex: 0 0 auto; border-radius: 50%; background: #7c94b7; box-shadow: 0 0 0 5px rgb(124 148 183 / 10%); }
.status-copy { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.status-copy > strong { font-size: 18px; font-weight: 700; }
.status-copy > span { font-size: 15px; color: var(--muted); overflow-wrap: anywhere; }
.status-label { margin-left: auto; flex-shrink: 0; font-size: 13px; color: var(--muted); }
.error-box { margin-top: 16px; white-space: pre-wrap; overflow-wrap: anywhere; }
noscript .notice { margin-top: 16px; }
.workspace { margin-top: 24px; }
.card { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 30px; box-shadow: var(--shadow); }
.workspace > .view-card { width: 100%; padding: 0; }
.card-heading { display: flex; align-items: center; gap: 16px; min-width: 0; }
.view-heading { padding: 26px 30px; border-bottom: 1px solid var(--line); }
.view-content { padding: 0 30px 30px; }
.section-icon { width: 54px; height: 54px; display: grid; place-items: center; flex: 0 0 auto; background: var(--blue-soft); color: var(--blue); border: 1px solid #dfe9ff; border-radius: 17px; }
.section-icon .icon { width: 27px; height: 27px; }
.section-kicker { color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 1px; margin-bottom: 3px; }
.card-description { margin: 24px 0; color: var(--muted); font-size: 17px; line-height: 1.85; }

.button { min-width: 0; min-height: 48px; padding: 11px 18px; border: 1px solid transparent; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 16px; font-weight: 700; line-height: 1.45; text-decoration: none; transition: background-color .16s, border-color .16s, box-shadow .16s, transform .16s; }
.button .icon { width: 20px; height: 20px; }
.button-primary { color: white; background: var(--blue); border-color: var(--blue); box-shadow: 0 5px 14px rgb(36 95 229 / 15%); }
.button-primary:hover:not(:disabled) { background: var(--blue-dark); border-color: var(--blue-dark); box-shadow: 0 7px 18px rgb(36 95 229 / 22%); }
.button-secondary { background: var(--surface); color: #28415f; border-color: #ccd9ea; }
.button-secondary:hover:not(:disabled) { background: var(--blue-soft); border-color: #9ebbf0; }
.button-quiet { background: var(--surface-soft); color: #5e7089; border-color: var(--line); }
.button-quiet:hover:not(:disabled) { background: #eaf0f8; }
.button:active:not(:disabled) { transform: translateY(1px); }
.button:disabled { cursor: not-allowed; color: #718299; background: #f1f4f8; border-color: #e0e6ef; box-shadow: none; }
.button-primary:disabled { background: #e9effb; color: #7185a8; border-color: #dce5f7; }
.button-full { width: 100%; }
.button-small { min-height: 44px; padding: 9px 14px; font-size: 15px; }
.connection-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.connection-actions > .button { min-height: 52px; }
.connection-actions > .button-row { grid-column: 1 / -1; }
.button-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.page-actions { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.page-actions-single { grid-template-columns: 1fr; }
.back-arrow { transform: rotate(180deg); }

.field { min-width: 0; margin-bottom: 24px; }
.field > label { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.label-note { font-size: 14px; font-weight: 500; color: var(--muted); }
input:not([type="checkbox"]), select { display: block; min-width: 0; width: 100%; min-height: 50px; padding: 12px 15px; color: var(--text); border: 1px solid #ccd9ea; border-radius: 12px; background-color: var(--surface-soft); font-size: 16px; line-height: 1.5; transition: border-color .16s, box-shadow .16s; }
input::placeholder { color: #71839c; opacity: 1; }
input:not([type="checkbox"]):focus, select:focus { outline: none; background-color: var(--surface); border-color: #629bfc; box-shadow: 0 0 0 4px rgb(36 95 229 / 10%); }
input:disabled, select:disabled { background-color: #f0f3f7; color: #718299; cursor: not-allowed; }
select { cursor: pointer; padding-right: 48px; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22' viewBox='0 0 24 24' fill='none' stroke='%235e7089' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-position: right 16px center; background-repeat: no-repeat; }
.field-help { color: var(--muted); font-size: 15px; line-height: 1.85; margin-top: 10px; }
.fields-two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.fields-two .field { margin-bottom: 0; }
.capacity-help { margin-bottom: 24px; }
.consent-box { display: flex; align-items: flex-start; gap: 12px; padding: 18px; margin: 0 0 22px; border: 1px solid #dce6f5; border-radius: 15px; background: var(--surface-soft); cursor: pointer; }
.consent-box input { flex: 0 0 auto; width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--blue); cursor: pointer; }
.consent-box strong { display: block; font-size: 17px; font-weight: 700; }
.consent-box > span { min-width: 0; }
.consent-box > span > span { display: block; color: var(--muted); font-size: 15px; line-height: 1.85; margin-top: 8px; }
.panel-footnote { display: flex; align-items: flex-start; gap: 9px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; line-height: 1.85; color: var(--muted); }
.panel-footnote .icon { width: 18px; height: 18px; margin-top: 4px; }

.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 26px 0; }
.metric { min-width: 0; padding: 24px 22px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface-soft); }
.metric-primary { background: var(--blue-soft); border-color: #d5e3ff; }
.metric-label { color: var(--muted); font-size: 16px; font-weight: 600; }
.metric-primary .metric-label { color: #426ba6; }
.metric-value { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; margin: 9px 0 4px; font-variant-numeric: tabular-nums; }
.metric-value strong { font-size: clamp(36px, 4vw, 48px); line-height: 1.25; letter-spacing: -1.5px; font-weight: 700; overflow-wrap: anywhere; }
.metric-value > span { font-size: 17px; color: var(--muted); }
.metric-primary .metric-value { color: var(--blue); }
.metric-caption { color: #637995; font-size: 12px; letter-spacing: 1px; }
.identity-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 20px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
dt { color: var(--muted); font-size: 16px; }
dd { margin-top: 7px; font-size: 19px; font-weight: 650; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.subsection-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px 14px; margin: 26px 0 16px; }
.subsection-heading > span { font-size: 14px; color: var(--muted); }
.firmware-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.firmware-grid > div { min-width: 0; padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface-soft); }
.firmware-grid dt { font-size: 14px; }
.firmware-grid dd { margin-top: 8px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; }
.config-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 17px; }
.config-table th, .config-table td { padding: 18px; }
.config-table thead { background: var(--surface-soft); color: var(--muted); font-size: 15px; }
.config-table thead th { font-weight: 600; }
.config-table tbody tr + tr { border-top: 1px solid var(--line); }
.config-table tbody th { font-size: 16px; font-weight: 600; white-space: nowrap; }
.config-table tbody th span { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }
.config-table td { font-weight: 650; font-variant-numeric: tabular-nums; }
.unit { color: var(--muted); font-size: 14px; font-weight: 400; }

.notice { display: flex; align-items: flex-start; gap: 13px; padding: 20px; border: 1px solid; border-radius: 16px; font-size: 16px; line-height: 1.85; }
.notice > .icon { width: 23px; height: 23px; margin-top: 3px; }
.notice > div { min-width: 0; }
.notice > div > strong { font-size: 17px; font-weight: 700; }
.notice p { margin-top: 7px; font-size: 15px; }
.notice-info { color: #356096; background: #f0f6ff; border-color: #dae8fc; }
.notice-danger { color: var(--danger); background: var(--danger-soft); border-color: #f1cfcb; }
.notice-warning { color: #8b5d11; background: #fff9eb; border-color: #f4e1b9; }
#dashboard-note { margin-top: 14px; border-left: 4px solid #d95755; }
.write-lock { padding: 22px 0; }
.lock-label { display: flex; align-items: center; gap: 9px; font-size: 16px; font-weight: 700; }
.lock-label .icon { width: 21px; height: 21px; color: var(--muted); }
#write-reason { margin: 8px 0 0 30px; font-size: 15px; color: var(--muted); overflow-wrap: anywhere; }
.backup-guidance { display: flex; align-items: center; gap: 18px; margin: 0 0 24px; padding: 22px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: 17px; }
.backup-symbol { display: grid; place-items: center; flex: 0 0 auto; width: 46px; height: 46px; color: var(--blue); }
.backup-symbol .icon { width: 28px; height: 28px; }
.backup-guidance strong { font-size: 18px; }
.backup-guidance p { margin-top: 5px; font-size: 15px; color: var(--muted); }
.import-field { margin-top: 28px; }
input[type="file"] { padding: 8px; color: var(--muted); font-size: 16px; background: var(--surface-soft); }
input[type="file"]::file-selector-button { font: inherit; font-weight: 650; color: #28415f; background: var(--surface); border: 1px solid #ccd9ea; border-radius: 9px; margin-right: 12px; padding: 6px 12px; cursor: pointer; }
.backup-state { display: flex; align-items: flex-start; gap: 14px; margin-top: 24px; padding: 18px; border: 1px dashed #c8d6e9; border-radius: 14px; }
.backup-state .status-dot { width: 8px; height: 8px; margin-top: 9px; box-shadow: none; }
#backup-status { color: var(--muted); font-size: 15px; overflow-wrap: anywhere; }

.log-card { margin-top: 24px; }
.log-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 24px; }
.log-surface { min-height: 150px; max-height: 360px; overflow: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-soft); padding: 20px 22px; }
.log-list { padding: 0; margin: 0 0 0 24px; color: #53667f; font-size: 15px; font-family: ui-monospace, "Cascadia Code", Consolas, "Microsoft YaHei", monospace; }
.log-list:empty { display: none; }
.log-list li { padding: 9px 0 9px 6px; border-bottom: 1px solid #e8edf5; white-space: pre-wrap; overflow-wrap: anywhere; }
.log-list li:last-child { border-bottom: none; }
.log-list .log-error { color: var(--danger); }
.log-list .log-warning { color: #936017; }
.log-empty { margin-top: 30px; text-align: center; color: var(--muted); font-size: 16px; }
.log-list:not(:empty) + .log-empty { display: none; }
.protocol-status { display: flex; align-items: baseline; gap: 14px; margin-top: 20px; }
.protocol-label { font-size: 14px; font-weight: 700; color: #526b8d; flex: 0 0 auto; }
#protocol-note { font-size: 14px; color: var(--muted); overflow-wrap: anywhere; }
.site-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 18px; padding: 26px 2px 30px; color: var(--muted); font-size: 13px; }
.site-footer strong { color: #526b8d; letter-spacing: 1px; margin-right: 5px; }

dialog.risk-dialog { width: min(92vw, 620px); max-height: 90dvh; overflow: auto; border: 1px solid var(--line); border-radius: 24px; padding: 30px; background: var(--surface); color: var(--text); box-shadow: 0 20px 90px rgb(23 41 66 / 20%); }
dialog.risk-dialog::backdrop { background: rgb(23 41 66 / 45%); }
dialog.risk-dialog > * + * { margin-top: 20px; }
dialog.risk-dialog .consent-box { font-size: 16px; }

@media (max-width: 900px) {
  .page-shell { padding-left: 24px; padding-right: 24px; }
  .status-label { display: none; }
  .firmware-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  h2 { font-size: 24px; }
  .connection-heading { gap: 12px; }
  .connection-heading > .card-heading { flex-direction: column; align-items: flex-start; gap: 10px; flex: 1 1 0; }
  .connection-heading h2 { font-size: 22px; white-space: nowrap; }
  .connection-heading .section-kicker { font-size: 10px; letter-spacing: 0; }
  .connection-badges { flex-direction: column; align-items: flex-end; flex: 0 1 auto; gap: 7px; max-width: 48%; }
  .connection-badges .badge { font-size: 11px; padding: 6px 8px; gap: 5px; }
  .connection-badges .badge::before { width: 6px; height: 6px; flex-shrink: 0; }
  .badge { font-size: 12px; }
  .page-shell { padding: 20px 16px 0; }
  .status-panel { padding: 18px; gap: 14px; align-items: flex-start; }
  .status-panel > .status-dot { margin-top: 9px; }
  .status-copy > strong { font-size: 17px; }
  .status-copy > span { font-size: 15px; }
  .workspace, .log-card { margin-top: 20px; }
  .card { padding: 20px; border-radius: 20px; }
  .card-heading { gap: 13px; }
  .view-heading { padding: 22px 20px; }
  .view-content { padding: 0 20px 22px; }
  .section-icon { width: 48px; height: 48px; border-radius: 15px; }
  .section-kicker { font-size: 12px; letter-spacing: .5px; }
  .card-description { font-size: 16px; margin: 20px 0; }
  .button { min-height: 48px; padding: 11px 16px; font-size: 16px; border-radius: 12px; }
  .button-small { min-height: 44px; font-size: 15px; }
  .connection-actions { grid-template-columns: 1fr; gap: 10px; }
  .connection-actions > .button { min-height: 50px; }
  .button-row { gap: 12px; }
  .page-actions { grid-template-columns: 1fr; gap: 12px; margin-top: 24px; padding-top: 20px; }
  input:not([type="checkbox"]), select { min-height: 50px; font-size: 16px; padding: 12px 14px; }
  select { padding-right: 44px; background-position: right 14px center; }
  .field > label { font-size: 17px; }
  .fields-two { grid-template-columns: 1fr; gap: 20px; }
  .consent-box { padding: 18px; gap: 12px; border-radius: 15px; }
  .consent-box strong { font-size: 16px; }
  .consent-box > span > span { font-size: 15px; }
  .panel-footnote { font-size: 14px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 22px 0; }
  .metric { padding: 20px 16px; border-radius: 16px; }
  .metric-primary { grid-column: 1 / -1; }
  .metric-primary .metric-value strong { font-size: 46px; }
  .metric-value strong { font-size: 32px; }
  .metric-label { font-size: 15px; }
  .metric-caption { font-size: 12px; letter-spacing: .4px; }
  .metric-value > span { font-size: 16px; }
  .identity-grid { grid-template-columns: 1fr; gap: 18px; }
  dt { font-size: 15px; }
  dd { font-size: 18px; }
  .firmware-grid { gap: 10px; }
  .firmware-grid > div { padding: 14px 12px; }
  .firmware-grid dt { font-size: 14px; }
  .config-table th, .config-table td { padding: 14px 12px; }
  .config-table { font-size: 16px; }
  .config-table thead { font-size: 14px; }
  .config-table tbody th { font-size: 15px; }
  .notice { padding: 18px; gap: 12px; }
  .notice > div > strong { font-size: 16px; }
  #write-reason { margin-left: 0; }
  .backup-guidance { padding: 18px; align-items: flex-start; gap: 12px; }
  .backup-symbol { width: 32px; }
  .backup-guidance strong { font-size: 17px; }
  input[type="file"] { padding: 8px; font-size: 15px; }
  input[type="file"]::file-selector-button { margin-right: 10px; padding: 6px 10px; }
  .log-heading { align-items: flex-start; flex-direction: column; gap: 18px; }
  .log-heading > .button { width: 100%; }
  .log-surface { padding: 18px 16px; }
  .log-list { margin-left: 20px; font-size: 15px; }
  .protocol-status { flex-direction: column; gap: 5px; }
  .site-footer { flex-direction: column; align-items: flex-start; font-size: 13px; }
  dialog.risk-dialog { padding: 22px; border-radius: 20px; }
  dialog.risk-dialog .button-row { grid-template-columns: 1fr; }
}
/* Keep the connection page unchanged; use smaller text on the other three pages. */
.view-card:not(.connection-card) { font-size: 15px; }
.view-card:not(.connection-card) .button,
.view-card:not(.connection-card) input:not([type="checkbox"]),
.view-card:not(.connection-card) select,
dialog.risk-dialog .button { font-size: 14px; }
.view-card:not(.connection-card) .field > label,
.view-card:not(.connection-card) h3,
.view-card:not(.connection-card) .backup-guidance strong { font-size: 16px; }
.view-card:not(.connection-card) .card-description { font-size: 15px; }
.view-card:not(.connection-card) .field-help,
.view-card:not(.connection-card) .notice p,
.view-card:not(.connection-card) #write-reason,
.view-card:not(.connection-card) .backup-guidance p,
.view-card:not(.connection-card) #backup-status { font-size: 14px; }
.view-card:not(.connection-card) .notice,
.view-card:not(.connection-card) .notice > div > strong,
.view-card:not(.connection-card) .lock-label { font-size: 15px; }
.information-card .metric-label,
.information-card dt,
.information-card .config-table tbody th { font-size: 14px; }
.information-card .metric-value strong { font-size: clamp(32px, 3.5vw, 40px); }
.information-card .metric-value > span { font-size: 15px; }
.information-card dd { font-size: 17px; }
.information-card .config-table { font-size: 15px; }
.information-card .config-table thead { font-size: 14px; }
.information-card .firmware-grid dt { font-size: 13px; }
.information-card .config-table tbody th span { font-size: 12px; }
.view-card:not(.connection-card) .label-note,
.view-card:not(.connection-card) .subsection-heading > span,
.view-card:not(.connection-card) .panel-footnote,
.information-card .unit { font-size: 13px; }
.information-card .metric-caption { font-size: 11px; }
dialog.risk-dialog { font-size: 15px; }
dialog.risk-dialog .notice { font-size: 14px; }
dialog.risk-dialog .consent-box { font-size: 14px; }
dialog.risk-dialog .field-help { font-size: 14px; }
@media (max-width: 600px) {
  .information-card .metric-value strong { font-size: 28px; }
  .information-card .metric-primary .metric-value strong { font-size: 36px; }
  .information-card dd { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  body { background: white; }
  .page-shell { max-width: none; padding: 15px 0; }
  .connection-actions, .page-actions, #write-btn, #export-backup-btn, #restore-btn, .import-field, .log-heading > .button { display: none; }
  .card { box-shadow: none; break-inside: avoid; }
  .log-surface { max-height: none; }
}