/* AdZero handbook: local assets, readable type, no external runtime. */
:root {
  color-scheme: light;
  --bg: #fff;
  --surface: #f6f9fb;
  --surface-hover: #edf5f9;
  --text: #182c39;
  --muted: #536674;
  --line: #dfe8ed;
  --accent: #217b63;
  --accent-soft: #e9f4ef;
  --teal: #087e74;
  --code: #f1f5f8;
  --warning: #805313;
  --warning-bg: #fff8e9;
  --shadow: 0 18px 64px #12344820;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
}
html[data-theme='dark'] {
  color-scheme: dark;
  --bg: #101a23;
  --surface: #16232d;
  --surface-hover: #1e303e;
  --text: #e5eef4;
  --muted: #a5b7c4;
  --line: #2b3f4d;
  --accent: #71d5af;
  --accent-soft: #19392f;
  --teal: #62d3be;
  --code: #172732;
  --warning: #f0cb85;
  --warning-bg: #2d281d;
  --shadow: 0 18px 64px #0006;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  font-size: 16px;
}
button,
input {
  font: inherit;
}
a {
  color: var(--accent);
  text-underline-offset: 4px;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
  color: inherit;
}
button:disabled {
  cursor: wait;
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
::selection {
  background: var(--accent-soft);
  color: var(--text);
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  padding: 8px 16px;
  z-index: 100;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 8px;
}
.skip-link:focus {
  top: 8px;
}
.header {
  height: 80px;
  padding: 0 36px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 28px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 20;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  min-width: 220px;
}
.brand img {
  object-fit: contain;
}
.brand > span {
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.6px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand small {
  font-size: 13px;
  font-weight: 450;
  letter-spacing: 0;
  color: var(--muted);
  border-left: 1px solid var(--line);
  padding-left: 14px;
}
.search-trigger {
  display: flex;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  border-radius: 9px;
  min-height: 42px;
  padding: 6px 12px;
  font-size: 14px;
  width: 290px;
  text-align: left;
}
.search-trigger > span {
  font-size: 24px;
  line-height: 1;
}
kbd {
  margin-left: auto;
  font-size: 11px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 5px;
  font-family: inherit;
}
.header-links {
  margin-left: auto;
  display: flex;
  gap: 26px;
  font-size: 14px;
  white-space: nowrap;
}
.header-links a {
  text-decoration: none;
  color: var(--muted);
}
.header-links a:hover {
  color: var(--accent);
}
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg);
  font-size: 24px;
  flex-shrink: 0;
}
.icon-button:hover {
  background: var(--surface-hover);
}
.menu-button {
  display: none;
}
.layout {
  max-width: 1580px;
  margin: auto;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr) 188px;
}
.sidebar {
  padding: 30px 20px 24px 28px;
  position: sticky;
  top: 80px;
  height: calc(100dvh - 80px);
  overflow: auto;
  border-right: 1px solid var(--line);
  background: var(--surface);
  font-size: 14px;
  scrollbar-width: thin;
}
.sidebar nav > a {
  display: block;
  padding: 7px 12px;
  margin: 2px 0;
  text-decoration: none;
  color: var(--muted);
  border-radius: 7px;
}
.sidebar nav > a:hover {
  color: var(--text);
  background: var(--surface-hover);
}
.sidebar nav > a[aria-current] {
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 650;
}
.nav-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  margin: 25px 12px 9px;
  letter-spacing: 0.05em;
}
.nav-label:first-child {
  margin-top: 3px;
}
.sidebar-footer {
  display: grid;
  gap: 9px;
  margin: 32px 12px 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12px;
}
.sidebar-footer > a {
  color: var(--muted);
  text-decoration: none;
}
.version {
  color: var(--teal);
  font-size: 12px;
}
main {
  min-width: 0;
}
.article {
  max-width: 872px;
  padding: 46px 48px 32px;
  margin: 0 auto;
  overflow-wrap: anywhere;
}
.page-heading {
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--teal);
  margin: 0 0 12px;
}
h1,
h2,
h3 {
  color: var(--text);
  line-height: 1.4;
  font-weight: 700;
}
h1 {
  font-size: 34px;
  letter-spacing: -1px;
  margin: 0 0 14px;
}
h2 {
  font-size: 23px;
  letter-spacing: -0.4px;
  margin: 44px 0 16px;
  padding-top: 4px;
}
h3 {
  font-size: 18px;
  margin: 28px 0 12px;
}
p {
  margin: 14px 0;
}
.lead {
  color: var(--muted);
  font-size: 17px;
  margin: 0;
  line-height: 1.9;
}
ul,
ol {
  padding-left: 24px;
}
li {
  padding-left: 3px;
  margin: 9px 0;
}
li::marker {
  color: var(--muted);
}
strong {
  font-weight: 650;
}
.toc {
  position: sticky;
  top: 80px;
  height: calc(100dvh - 80px);
  overflow: auto;
  padding: 48px 20px 30px 4px;
  font-size: 12px;
}
.toc > span {
  display: block;
  font-size: 12px;
  font-weight: 650;
  margin-bottom: 16px;
  color: var(--text);
}
.toc > a {
  display: block;
  padding: 4px 0 4px 14px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  line-height: 1.7;
}
.toc > a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
}
.toc .toc-h3 {
  padding-left: 24px;
  font-size: 11px;
}
.toc .back-top {
  border: 0;
  margin-top: 22px;
  font-size: 11px;
}
.callout {
  padding: 16px 20px;
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  background: var(--accent-soft);
  font-size: 14px;
}
.callout p {
  margin: 5px 0;
}
.callout.warning {
  border-left-color: var(--warning);
  background: var(--warning-bg);
}
.callout > strong {
  display: block;
  margin-bottom: 5px;
}
code {
  font-family: 'Cascadia Code', 'SFMono-Regular', Consolas, monospace;
  font-size: 0.86em;
  background: var(--code);
  padding: 3px 6px;
  border-radius: 4px;
}
pre {
  position: relative;
  border: 1px solid var(--line);
  background: var(--code);
  border-radius: 10px;
  padding: 22px 20px;
  overflow: auto;
  line-height: 1.75;
  margin: 20px 0;
  scrollbar-width: thin;
}
pre code {
  font-size: 13px;
  display: block;
  padding: 0;
  background: transparent;
  width: max-content;
  min-width: 100%;
  padding-right: 48px;
}
.copy-button {
  position: sticky;
  float: right;
  right: 0;
  margin: -10px -8px 0 0;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--muted);
  font-size: 11px;
  min-height: 32px;
  z-index: 1;
}
.copy-button:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.table-wrap {
  overflow: auto;
  margin: 20px 0;
  border: 1px solid var(--line);
  border-radius: 9px;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.8;
  text-align: left;
}
th,
td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  background: var(--surface);
  font-weight: 650;
  white-space: nowrap;
}
tr:last-child td {
  border-bottom: 0;
}
td:first-child {
  min-width: 110px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  background: var(--bg);
}
.button.primary {
  color: #fff;
  border-color: #217b63;
  background: #217b63;
}
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 12px #1234480c;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 25px;
}
.hero {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 20px;
  align-items: center;
  margin: 8px 0 36px;
}
.hero img {
  width: 180px;
  height: 180px;
  object-fit: contain;
}
.hero h2 {
  font-size: 39px;
  line-height: 1.35;
  letter-spacing: -1.5px;
  margin: 10px 0 16px;
}
.hero p {
  color: var(--muted);
}
.hero .pill {
  display: inline-flex;
  font-size: 11px;
  font-weight: 600;
  color: var(--teal);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 2px 10px;
}

.link-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 24px 0;
}
.link-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  background: var(--bg);
  transition:
    border-color 0.16s,
    background 0.16s;
}
.link-card:hover {
  border-color: var(--accent);
  background: var(--surface);
}
.link-card small {
  display: block;
  color: var(--teal);
  font-size: 11px;
  margin-bottom: 9px;
  letter-spacing: 0.03em;
}
.link-card strong {
  font-size: 17px;
}
.link-card p {
  font-size: 13px;
  color: var(--muted);
  margin: 8px 0 0;
  line-height: 1.8;
}
.steps {
  list-style: none;
  padding: 0;
  counter-reset: steps;
  margin: 24px 0;
}
.steps > li {
  position: relative;
  padding: 0 0 24px 46px;
  margin: 0;
  border-left: 1px solid var(--line);
  margin-left: 14px;
}
.steps > li:before {
  counter-increment: steps;
  content: counter(steps, decimal-leading-zero);
  position: absolute;
  left: -15px;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 50%;
}
.steps > li:last-child {
  border: 0;
  padding-bottom: 0;
}
.steps strong {
  display: block;
}
.steps p {
  margin: 7px 0 0;
  font-size: 14px;
  color: var(--muted);
}
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding-top: 26px;
  margin: 54px 0 30px;
}
.pager a {
  display: grid;
  font-size: 14px;
  text-decoration: none;
  line-height: 1.7;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.pager a:hover {
  border-color: var(--accent);
}
.pager a:last-child {
  text-align: right;
}
.pager small {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 4px;
}
.article-footer {
  color: var(--muted);
  font-size: 11px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}
.article-footer a {
  color: var(--muted);
  margin-left: auto;
}
details {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 18px;
  margin: 16px 0;
  font-size: 14px;
}
summary {
  font-weight: 600;
  cursor: pointer;
  min-height: 24px;
}
dialog {
  width: min(680px, calc(100% - 32px));
  margin: 10vh auto auto;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  color: var(--text);
  box-shadow: var(--shadow);
  max-height: 80dvh;
  overflow: auto;
}
dialog::backdrop {
  background: #0e243c70;
}
.search-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 650;
}
.search-header button {
  border: 0;
  font-size: 26px;
}
#search-input {
  width: 100%;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
}
#search-status {
  font-size: 12px;
  color: var(--muted);
  margin: 14px 3px;
}
#search-results {
  display: grid;
  gap: 8px;
}
.search-result {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
}
.search-result:hover,
.search-result:focus {
  border-color: var(--accent);
  background: var(--surface-hover);
}
.search-result > small {
  color: var(--accent);
  font-size: 11px;
}
.search-result > strong {
  display: block;
  font-size: 15px;
  margin: 3px 0;
}
.search-result > p {
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  margin: 4px 0;
}
.search-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 16px;
  font-size: 10px;
  color: var(--muted);
}
.noscript {
  padding: 12px 24px;
  background: var(--surface);
  font-size: 13px;
}
@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    color-scheme: dark;
    --bg: #101a23;
    --surface: #16232d;
    --surface-hover: #1e303e;
    --text: #e5eef4;
    --muted: #a5b7c4;
    --line: #2b3f4d;
    --accent: #71d5af;
    --accent-soft: #19392f;
    --teal: #62d3be;
    --code: #172732;
    --warning: #f0cb85;
    --warning-bg: #2d281d;
    --shadow: 0 18px 64px #0006;
  }
}
@media (min-width: 1580px) {
  .sidebar {
    border-left: 1px solid var(--line);
  }
}
@media (max-width: 1199px) {
  .layout {
    grid-template-columns: 228px minmax(0, 1fr);
  }
  .toc {
    display: none;
  }
  .header {
    padding: 0 24px;
    gap: 20px;
  }
  .brand {
    min-width: 210px;
  }
  .article {
    padding: 40px 40px 28px;
  }
}
@media (max-width: 850px) {
  .layout {
    display: block;
  }
  .header {
    height: 68px;
    padding: 0 20px;
    gap: 12px;
  }
  .brand {
    min-width: 0;
    margin-right: auto;
  }
  .brand > span {
    font-size: 21px;
  }
  .brand small {
    display: none;
  }
  .header-links {
    display: none;
  }
  .search-trigger {
    width: auto;
    min-width: 44px;
    padding: 6px 10px;
    font-size: 0;
    gap: 0;
  }
  .search-trigger > span {
    font-size: 28px;
  }
  .search-trigger kbd {
    display: none;
  }
  .menu-button {
    display: block;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    min-height: 44px;
    padding: 6px 12px;
    font-size: 13px;
  }
  .sidebar {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    height: auto;
    max-height: calc(100dvh - 68px);
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    z-index: 19;
  }
  .sidebar.is-open {
    display: block;
  }
  .sidebar nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px 16px;
  }
  .sidebar nav > a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .nav-label {
    grid-column: 1 / -1;
  }
  .sidebar-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 18px;
  }
  .article {
    max-width: 760px;
    padding: 36px 28px 26px;
  }
  .hero {
    grid-template-columns: 1fr 150px;
  }
  .hero img {
    width: 150px;
    height: 150px;
  }
  h1 {
    font-size: 30px;
  }
  .hero h2 {
    font-size: 36px;
  }
}
@media (max-width: 540px) {
  .header {
    padding: 0 16px;
    gap: 8px;
  }
  .brand {
    gap: 5px;
  }
  .brand img {
    width: 34px;
    height: 34px;
  }
  .brand > span {
    font-size: 20px;
  }
  .article {
    padding: 30px 20px 24px;
  }
  h1 {
    font-size: 28px;
  }
  h2 {
    font-size: 21px;
    margin-top: 36px;
  }
  .lead {
    font-size: 15px;
  }
  .hero {
    grid-template-columns: 1fr 82px;
    align-items: start;
    gap: 6px;
  }
  .hero img {
    width: 82px;
    height: 82px;
    margin-top: 32px;
  }
  .hero h2 {
    font-size: 29px;
    letter-spacing: -1px;
  }
  .hero p {
    font-size: 14px;
  }
  .actions {
    gap: 8px;
    grid-column: 1 / -1;
  }
  .button {
    font-size: 13px;
    padding: 9px 14px;
  }
  .link-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .link-card {
    padding: 18px;
  }
  .callout {
    padding: 14px 16px;
    font-size: 13px;
  }
  th,
  td {
    padding: 10px 12px;
    min-width: 100px;
  }
  pre {
    padding: 18px 14px;
  }
  pre code {
    font-size: 12px;
  }
  .pager {
    gap: 10px;
  }
  .pager a {
    padding: 12px;
    font-size: 13px;
  }
  .article-footer {
    display: block;
    line-height: 2;
  }
  .article-footer span,
  .article-footer a {
    display: block;
  }
  dialog {
    margin-top: 3vh;
    max-height: 92dvh;
    padding: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .button:hover {
    transform: none;
  }
}
@media print {
  .header,
  .sidebar,
  .toc,
  .pager,
  dialog,
  .copy-button {
    display: none !important;
  }
  .layout {
    display: block;
  }
  .article {
    max-width: none;
    padding: 0;
  }
  body {
    background: #fff;
    color: #000;
  }
  pre {
    white-space: pre-wrap;
  }
  pre code {
    width: auto;
  }
}