:root {
  --ink:#17212d;
  --muted:#667486;
  --blue:#244563;
  --blue-light:#eef3f7;
  --line:#e0e5eb;
  --paper:#fff;
  --background:#f7f8fa;
  --radius:8px
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth
}
body {
  margin:0;
  background:var(--background);
  color:var(--ink);
  font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif
}
a {
  color:inherit;
  text-decoration:none
}
button,input,select {
  font:inherit
}
button,a,input,select {
  touch-action:manipulation
}
button {
  cursor:pointer
}
a:hover {
  color:var(--blue)
}
button:disabled {
  cursor:not-allowed;
  opacity:.5
}
h1,h2,h3,p {
  margin-top:0
}
h1 {
  font-size:42px;
  line-height:1.3;
  letter-spacing:-1px;
  font-weight:650;
  margin-bottom:14px
}
h2 {
  font-size:22px;
  font-weight:650;
  line-height:1.4;
  margin-bottom:12px
}
h3 {
  font-size:18px;
  font-weight:600;
  margin-bottom:10px
}
p {
  margin-bottom:14px
}
strong {
  font-weight:600
}
fieldset {
  padding:0;
  border:0;
  margin:0
}
legend {
  margin-bottom:8px
}
form {
  margin:0
}
code {
  font-family:ui-monospace,monospace
}
::selection {
  background:#d4e2ef
}
:focus-visible {
  outline:3px solid #7095b7;
  outline-offset:4px
}
[hidden] {
  display:none!important
}
.container {
  max-width:1180px;
  margin:auto;
  padding:0 36px
}
.site-header {
  background:var(--paper);
  border-bottom:1px solid var(--line)
}
.header-inner {
  max-width:1280px;
  margin:auto;
  min-height:84px;
  padding:16px 36px;
  display:flex;
  align-items:center;
  gap:40px
}
.brand {
  font-size:21px;
  font-weight:650;
  display:flex;
  align-items:center;
  gap:11px;
  white-space:nowrap;
  letter-spacing:-.4px
}
.brand-mark {
  display:block;
  width:40px;
  height:40px;
  object-fit:contain;
  flex-shrink:0
}
.brand-note {
  font-size:11px;
  letter-spacing:2px;
  font-weight:400;
  color:var(--muted);
  border-left:1px solid var(--line);
  padding-left:13px;
  margin-left:3px
}
.site-header nav {
  display:flex;
  gap:27px;
  align-items:center;
  flex:1
}
.site-header nav a {
  font-size:14px;
  color:var(--muted);
  position:relative;
  white-space:nowrap
}
.site-header nav a[aria-current] {
  color:var(--ink);
  font-weight:600
}
.site-header nav a[aria-current]:after {
  content:"";
  position:absolute;
  bottom:-28px;
  left:0;
  right:0;
  height:2px;
  background:var(--blue)
}
.header-account {
  display:flex;
  gap:18px;
  align-items:center;
  font-size:13px
}
.user-name {
  max-width:100px;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis
}
.button {
  display:inline-flex;
  justify-content:center;
  align-items:center;
  gap:18px;
  min-height:44px;
  padding:10px 21px;
  background:var(--blue);
  color:white;
  border:1px solid var(--blue);
  border-radius:5px;
  font-weight:500;
  font-size:14px;
  transition:background .15s
}
.button:hover {
  background:#18364f;
  color:white
}
.button-outline {
  background:transparent;
  color:var(--blue);
  border-color:#b8c6d3
}
.button-outline:hover {
  background:var(--blue-light);
  color:var(--blue)
}
.button-small {
  min-height:36px;
  padding:6px 14px;
  font-size:13px
}
.button-full {
  width:100%
}
.text-button {
  background:none;
  border:none;
  padding:0;
  color:var(--muted);
  font-size:13px;
  cursor:pointer
}
.text-button:hover {
  color:var(--blue)
}
.page-intro {
  padding:66px 0 40px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px
}
.eyebrow {
  font-size:11px;
  font-weight:550;
  letter-spacing:2px;
  color:var(--muted);
  margin-bottom:17px
}
.lead {
  font-size:16px;
  color:var(--muted);
  margin-bottom:0
}
.intro-stat {
  padding-left:35px;
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  min-width:145px
}
.intro-stat strong {
  font-size:52px;
  line-height:1.1;
  font-weight:400;
  color:var(--blue);
  font-variant-numeric:tabular-nums
}
.intro-stat span {
  font-size:12px;
  color:var(--muted);
  margin-top:9px
}
.announcement {
  display:flex;
  align-items:center;
  gap:12px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:16px 0;
  font-size:12px;
  color:var(--muted)
}
.announcement a {
  margin-left:auto;
  white-space:nowrap;
  color:var(--blue)
}
.dot {
  width:5px;
  height:5px;
  background:var(--blue);
  border-radius:50%;
  flex-shrink:0
}
.section-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:15px;
  margin:31px 0 20px
}
.section-heading h2,.section-heading h3 {
  margin:0
}
.section-heading p {
  margin:5px 0 0;
  color:var(--muted);
  font-size:13px
}
.meta {
  font-size:12px;
  color:var(--muted)
}
.device-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));
  gap:22px
}
.device-card {
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden
}
.card-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:21px 22px 9px
}
.device-index {
  font:10px/1.5 ui-monospace,monospace;
  color:var(--muted);
  letter-spacing:1px
}
.badge {
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:11px;
  padding:3px 9px;
  border-radius:4px;
  background:#f0f2f4;
  color:#67707b;
  white-space:nowrap
}
.badge:before {
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:currentColor
}
.badge.available,.badge.active {
  background:#eaf1f7;
  color:#315875
}
.badge.preparing,.badge.releasing,.badge.reserved {
  background:#f0f1f5;
  color:#5b657c
}
.badge.maintenance,.badge.failed {
  background:#f5eeee;
  color:#95635e
}
.board-illustration {
  height:150px;
  margin:9px 22px 0;
  background:linear-gradient(90deg,#f4f6f8 1px,transparent 1px),linear-gradient(#f4f6f8 1px,transparent 1px),#fafbfc;
  background-size:18px 18px;
  position:relative;
  display:grid;
  place-items:center;
  border-radius:4px;
  overflow:hidden
}
.board-chip {
  width:87px;
  height:77px;
  border:1px solid #8a9bae;
  background:#eaf0f5;
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  z-index:1;
  box-shadow:0 0 0 5px #f8fafc,0 0 0 6px #ccd6e0
}
.board-chip span {
  font:13px ui-monospace,monospace;
  letter-spacing:2px;
  color:#36516b
}
.board-chip small {
  font:7px ui-monospace,monospace;
  margin-top:8px;
  color:#72849a
}
.board-traces {
  position:absolute;
  width:210px;
  height:48px;
  border-top:1px solid #c5d1dc;
  border-bottom:1px solid #c5d1dc
}
.board-traces:after {
  content:"";
  position:absolute;
  inset:10px 0;
  border-top:1px solid #d0d9e2;
  border-bottom:1px solid #d0d9e2
}
.board-connectors {
  position:absolute;
  left:23px;
  bottom:15px;
  display:flex;
  gap:5px
}
.board-connectors i {
  width:5px;
  height:5px;
  border:1px solid #becad6
}
.card-body {
  padding:24px 22px 20px
}
.model-label {
  font-size:10px;
  letter-spacing:1.2px;
  color:var(--muted);
  margin-bottom:3px
}
.card-body h3 {
  font-size:23px;
  font-weight:550;
  margin-bottom:10px
}
.device-description {
  font-size:13px;
  color:var(--muted);
  min-height:44px
}
.device-specs {
  border-top:1px solid var(--line);
  padding-top:13px;
  display:flex;
  justify-content:space-between;
  gap:8px;
  font-size:10px;
  color:var(--muted)
}
.device-specs strong {
  color:var(--ink)
}
.simulation-note {
  font-size:10px;
  color:#748399;
  margin:11px 0 0
}
.card-footer {
  border-top:1px solid var(--line);
  padding:15px 22px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:11px;
  color:var(--muted)
}
.card-action {
  color:var(--blue);
  font-size:12px;
  font-weight:500
}
.card-action span {
  margin-left:12px
}
.how-it-works {
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:40px;
  padding:45px 0;
  border-top:1px solid var(--line);
  margin-top:45px
}
.how-it-works h2 {
  font-size:24px
}
.how-it-works ol {
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:25px
}
.how-it-works li>span {
  font:12px ui-monospace,monospace;
  color:#8998a7
}
.how-it-works h3 {
  font-size:14px;
  margin:17px 0 6px
}
.how-it-works li p {
  font-size:12px;
  color:var(--muted)
}
.inline-link {
  color:var(--blue);
  font-size:13px
}
.site-footer {
  border-top:1px solid var(--line);
  margin-top:40px;
  color:var(--muted);
  font-size:11px
}
.footer-inner {
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding-top:23px;
  padding-bottom:23px
}
.footer-separator {
  margin:0 12px;
  color:#bcc6d1
}
.notice {
  padding:12px 16px;
  border:1px solid #dbe3eb;
  background:#eff4f8;
  color:#39526b;
  border-radius:5px;
  font-size:13px;
  margin:18px 0
}
.notice a {
  text-decoration:underline
}
.notice.error {
  background:#f9f0ef;
  border-color:#eedad7;
  color:#92524b
}
.notice.success {
  background:#eef4f2;
  border-color:#d7e5df;
  color:#426357
}
.notice.warning {
  background:#f6f3ed;
  border-color:#e8e0d0;
  color:#7a6848
}
.page-title {
  margin:47px 0 30px
}
.page-title h1 {
  font-size:35px
}
.title-row {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px
}
.back-link {
  display:inline-block;
  font-size:12px;
  color:var(--muted);
  margin-top:30px
}
.back-link+.page-title {
  margin-top:24px
}
.panel {
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px
}
.panel>.section-heading {
  margin-top:0
}
.two-column {
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:26px;
  align-items:start
}
.stack-form {
  display:flex;
  flex-direction:column;
  gap:20px;
  margin-top:24px
}
.stack-form>label {
  display:flex;
  flex-direction:column;
  gap:7px;
  font-size:13px;
  font-weight:500
}
input:not([type=checkbox],[type=radio]),select {
  width:100%;
  min-height:45px;
  padding:9px 12px;
  border:1px solid #cdd5df;
  border-radius:4px;
  background:#fff;
  color:var(--ink)
}
input::placeholder {
  color:#a0a9b5;
  font-size:13px
}
input[type=checkbox],input[type=radio] {
  accent-color:var(--blue);
  width:16px;
  height:16px;
  flex-shrink:0
}
.stack-form>.checkbox-label,.checkbox-label {
  display:flex;
  flex-direction:row;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:400
}
.checkbox-label a {
  color:var(--blue);
  text-decoration:underline
}
.choice-group legend {
  font-size:13px
}
.choice-group {
  display:flex;
  gap:15px
}
.choice-group label {
  border:1px solid var(--line);
  border-radius:4px;
  flex:1;
  display:flex;
  align-items:center;
  gap:8px;
  padding:12px;
  font-size:13px
}
.choice-group label:has(input:checked) {
  border-color:#8198ad;
  background:var(--blue-light)
}
.small {
  font-size:12px
}
.muted {
  color:var(--muted)
}
.schedule-row {
  padding:18px 0;
  display:flex;
  gap:13px;
  align-items:flex-start;
  border-bottom:1px solid var(--line);
  font-size:13px
}
.schedule-row p {
  margin:0
}
.schedule-dot {
  width:5px;
  height:5px;
  border-radius:50%;
  background:#8294a8;
  margin-top:9px
}
.compact-empty {
  color:var(--muted);
  padding:30px 0;
  font-size:13px
}
.aside-note {
  border-top:1px solid var(--line);
  margin-top:28px;
  padding-top:23px
}
.aside-note h3 {
  font-size:15px
}
.aside-note p {
  font-size:12px;
  color:var(--muted)
}
.auth-layout {
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:90px;
  align-items:start;
  margin:65px auto;
  max-width:940px
}
.auth-intro {
  padding-top:33px
}
.auth-intro h1 {
  white-space:pre-line;
  font-size:38px;
  line-height:1.5
}
.auth-intro>p:not(.eyebrow) {
  color:var(--muted);
  font-size:14px
}
.auth-detail {
  margin-top:55px;
  padding-top:25px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:20px;
  font-size:12px;
  color:var(--muted)
}
.auth-detail p {
  margin:0
}
.line-icon {
  font-size:27px;
  color:var(--blue)
}
.auth-panel {
  background:white;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px
}
.auth-panel h2 {
  font-size:23px
}
.auth-panel>.muted {
  font-size:13px
}
.auth-switch {
  font-size:12px;
  color:var(--muted);
  text-align:center;
  border-top:1px solid var(--line);
  padding-top:21px;
  margin-top:24px
}
.auth-switch a {
  color:var(--blue);
  margin-left:5px
}
.table-wrap {
  overflow-x:auto;
  background:white;
  border:1px solid var(--line);
  border-radius:var(--radius)
}
table {
  width:100%;
  border-collapse:collapse;
  font-size:13px;
  text-align:left;
  white-space:nowrap
}
th {
  padding:15px 22px;
  background:#f0f3f6;
  color:var(--muted);
  font-weight:500;
  font-size:12px
}
td {
  padding:20px 22px;
  border-top:1px solid var(--line)
}
.cell-secondary {
  display:block;
  font-size:11px;
  color:var(--muted);
  margin-top:3px
}
.text-right {
  text-align:right
}
.empty-state {
  padding:75px 20px;
  text-align:center
}
.empty-state h1 {
  font-size:26px
}
.empty-state h2 {
  margin-top:20px
}
.empty-state p {
  color:var(--muted);
  font-size:14px;
  margin:12px 0 25px
}
.empty-symbol {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:55px;
  height:55px;
  border:1px solid #bbc9d6;
  border-radius:12px;
  color:var(--blue);
  font-size:28px;
  font-weight:300
}
.workspace-panel {
  min-height:350px
}
.countdown-block {
  margin:30px 0 25px;
  display:flex;
  flex-direction:column
}
.countdown-block strong {
  font:44px/1.4 ui-monospace,monospace;
  color:var(--blue);
  letter-spacing:1px
}
.workspace-panel>p {
  font-size:13px;
  color:var(--muted)
}
.workspace-placeholder {
  padding:50px 5px;
  text-align:center
}
.workspace-placeholder>span {
  font-size:32px;
  color:#7f93a6
}
.workspace-placeholder h3 {
  margin-top:18px;
  font-size:19px
}
.workspace-placeholder p {
  font-size:13px;
  color:var(--muted)
}
.detail-list {
  margin:25px 0 0;
  font-size:13px
}
.detail-list div {
  display:flex;
  justify-content:space-between;
  gap:15px;
  padding:12px 0;
  border-bottom:1px solid var(--line)
}
dt {
  color:var(--muted)
}
dd {
  margin:0;
  text-align:right
}
.credential {
  background:var(--background);
  border:1px solid var(--line);
  padding:15px;
  margin:22px 0 10px
}
.credential div {
  display:flex;
  justify-content:space-between;
  gap:10px
}
.credential code {
  overflow-wrap:anywhere
}
.spinner {
  display:inline-block;
  width:28px;
  height:28px;
  border:2px solid var(--line);
  border-top-color:var(--blue);
  border-radius:50%;
  animation:spin 1s linear infinite
}
@keyframes spin {
  to {
    transform:rotate(360deg)
  }
}
.narrow-panel {
  max-width:500px
}
.guide-layout {
  display:grid;
  grid-template-columns:190px 1fr;
  gap:65px
}
.guide-nav {
  display:flex;
  flex-direction:column;
  gap:14px;
  align-self:start;
  border-left:1px solid var(--line);
  padding-left:20px;
  font-size:13px;
  color:var(--muted);
  position:sticky;
  top:30px
}
.guide-content {
  max-width:720px
}
.guide-content section {
  padding-bottom:30px;
  margin-bottom:30px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:25px
}
.guide-content h2 {
  margin-top:12px
}
.guide-content p,.guide-content li {
  color:var(--muted);
  font-size:14px
}
.guide-content ul {
  padding-left:20px
}
.guide-content li {
  margin:9px 0
}
.admin-section {
  margin-bottom:38px
}
.admin-device-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px
}
.danger-text {
  color:#98524b
}
.sr-only {
  position:absolute;
  width:1px;
  height:1px;
  margin:-1px;
  padding:0;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0
}
.skip-link {
  position:absolute;
  left:15px;
  top:-100px;
  background:white;
  padding:10px;
  z-index:100
}
.skip-link:focus {
  top:10px
}
@media(max-width:1000px) {
  .header-inner {
    gap:25px
  }
  .brand-note {
    display:none
  }
  .site-header nav {
    gap:18px
  }
  .device-grid {
    gap:14px
  }
  .card-top,.card-body,.card-footer {
    padding-left:17px;
    padding-right:17px
  }
  .board-illustration {
    margin-left:17px;
    margin-right:17px
  }
  .auth-layout {
    gap:45px
  }
  .how-it-works {
    grid-template-columns:1fr 2.5fr
  }
  .admin-device-grid {
    grid-template-columns:repeat(2,1fr)
  }
}
@media(max-width:760px) {
  .container {
    padding:0 22px
  }
  .header-inner {
    padding:15px 22px;
    flex-wrap:wrap;
    gap:15px;
    min-height:auto
  }
  .brand {
    font-size:19px
  }
  .header-account {
    margin-left:auto;
    gap:13px
  }
  .site-header nav {
    order:3;
    flex-basis:100%;
    gap:27px;
    overflow-x:auto;
    padding:9px 0 2px
  }
  .site-header nav a[aria-current]:after {
    bottom:-8px
  }
  .page-intro {
    padding:42px 0 28px;
    gap:18px
  }
  .page-intro h1 {
    font-size:31px
  }
  .lead {
    font-size:14px
  }
  .intro-stat {
    padding-left:20px;
    min-width:100px
  }
  .intro-stat strong {
    font-size:39px
  }
  .intro-stat span {
    font-size:10px
  }
  .announcement {
    font-size:11px;
    align-items:flex-start
  }
  .announcement .dot {
    margin-top:7px
  }
  .announcement a {
    display:none
  }
  .section-heading {
    margin:25px 0 17px
  }
  .section-heading h2 {
    font-size:20px
  }
  .section-heading p {
    font-size:12px
  }
  .device-grid {
    grid-template-columns:repeat(2,minmax(0,1fr))
  }
  .how-it-works {
    grid-template-columns:1fr;
    gap:25px;
    margin-top:30px;
    padding:32px 0 15px
  }
  .how-it-works ol {
    gap:18px
  }
  .how-it-works .eyebrow {
    margin-bottom:10px
  }
  .footer-inner {
    flex-direction:column;
    gap:3px
  }
  .two-column {
    grid-template-columns:1fr;
    gap:20px
  }
  .page-title {
    margin:35px 0 25px
  }
  .page-title h1 {
    font-size:30px
  }
  .title-row {
    align-items:flex-start
  }
  .title-row>.button {
    font-size:12px;
    padding:8px 12px;
    margin-top:15px
  }
  .auth-layout {
    grid-template-columns:1fr;
    gap:25px;
    margin:35px 0
  }
  .auth-intro {
    padding:0
  }
  .auth-intro h1 {
    font-size:29px;
    white-space:normal;
    line-height:1.5
  }
  .auth-intro .eyebrow {
    margin-bottom:12px
  }
  .auth-detail {
    display:none
  }
  .auth-panel {
    padding:25px
  }
  .panel {
    padding:24px
  }
  .guide-layout {
    grid-template-columns:1fr;
    gap:30px
  }
  .guide-nav {
    position:static;
    flex-direction:row;
    overflow:auto;
    white-space:nowrap;
    border-left:0;
    border-bottom:1px solid var(--line);
    padding:0 0 15px;
    gap:24px
  }
  .admin-device-grid {
    grid-template-columns:1fr
  }
  .admin-section .section-heading {
    flex-wrap:wrap
  }
  th,td {
    padding:15px
  }
  .countdown-block strong {
    font-size:36px
  }
}
@media(max-width:480px) {
  .device-grid {
    grid-template-columns:1fr
  }
  .board-illustration {
    height:140px
  }
  .device-description {
    min-height:auto
  }
  .card-body {
    padding-top:20px
  }
  .brand-mark {
    width:32px;
    height:32px
  }
  .header-account .button {
    padding:5px 9px;
    font-size:11px
  }
  .site-header nav {
    gap:23px
  }
  .site-header nav a {
    font-size:12px
  }
  .user-name {
    max-width:65px
  }
  .page-intro h1 {
    font-size:27px
  }
  .intro-stat {
    min-width:85px;
    padding-left:15px
  }
  .intro-stat strong {
    font-size:35px
  }
  .how-it-works ol {
    grid-template-columns:1fr;
    gap:15px
  }
  .how-it-works li {
    display:flex;
    gap:20px
  }
  .how-it-works li>span {
    margin-top:5px
  }
  .how-it-works h3 {
    margin-top:0
  }
  .how-it-works li p {
    margin-bottom:0
  }
  .title-row {
    flex-wrap:wrap
  }
  .title-row>.button {
    margin-top:0
  }
  .page-title h1 {
    font-size:28px
  }
  .choice-group {
    gap:10px
  }
  .choice-group label {
    padding:10px
  }
  .detail-list {
    font-size:12px
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  .spinner {
    animation:none
  }
  .button {
    transition:none
  }
}