:root {
  color-scheme: light;
  --ink: #151b27;
  --muted: #657181;
  --green: #207a70;
  --line: #d7e3e4;
  --paper: rgba(255, 255, 255, 0.95);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    'PingFang SC',
    'Microsoft YaHei',
    sans-serif;
  color: var(--ink);
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 106px;
}
body {
  margin: 0;
  background: linear-gradient(130deg, #d6f6f0 0%, #e6f3f5 45%, #f2f7f9 100%);
  font-size: 15px;
  line-height: 1.8;
}
a {
  color: var(--green);
  text-decoration: none;
  text-underline-offset: 4px;
}
a:hover {
  text-decoration: underline;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid #237f70;
  outline-offset: 4px;
  border-radius: 4px;
}
.wrap {
  width: min(1140px, calc(100% - 48px));
  margin-inline: auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
}
.brand:hover {
  text-decoration: none;
}
.brand img {
  flex: none;
}
.brand small {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  display: block;
  line-height: 1.25;
}
.header-inner nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
}
.header-inner nav a {
  color: #465160;
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 650;
  border-radius: 5px;
  white-space: nowrap;
}
.header-inner nav a:hover,
.header-inner nav a[aria-current] {
  background: #e7f7f2;
  color: #126a5d;
  text-decoration: none;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 44px;
  padding: 9px 17px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-weight: 650;
  font-size: 14px;
  transition:
    transform 0.18s,
    background 0.18s;
}
.button:hover {
  transform: translateY(-2px);
  text-decoration: none;
}
.dark {
  background: #171d28;
  color: #fff;
}
.dark:hover {
  background: #2b3445;
}
.light {
  color: #176d64;
  background: #e9fffa;
  border-color: #b0e7db;
}
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 9px;
  box-shadow: 0 12px 32px #184f4410;
}
.hero {
  display: grid;
  grid-template-columns: 1.57fr 1fr;
  gap: 24px;
  padding-top: 34px;
  margin-bottom: 24px;
}
.hero-copy {
  padding: 32px 34px;
}
.eyebrow {
  font-size: 12px;
  line-height: 1.5;
  font-weight: 800;
  letter-spacing: 0.035em;
  color: var(--green);
  margin: 0 0 12px;
}
h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}
h1 {
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.045em;
  margin: 0 0 20px;
  font-weight: 780;
}
h2 {
  font-size: 27px;
  line-height: 1.4;
  margin: 0 0 12px;
  letter-spacing: -0.025em;
}
h3 {
  font-size: 18px;
  line-height: 1.5;
  margin: 24px 0 9px;
}
p {
  margin: 0 0 13px;
}
p:last-child {
  margin-bottom: 0;
}
.lead {
  font-size: 16px;
  line-height: 1.9;
  color: #52616d;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 25px 0 23px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags span {
  font-size: 12px;
  font-weight: 650;
  color: #286280;
  border: 1px solid #cae2ed;
  background: #eff9fe;
  border-radius: 6px;
  padding: 4px 9px;
}
.roadmap {
  padding: 25px 22px;
}
.roadmap h2 {
  font-size: 17px;
  color: #297268;
  margin: 0 0 18px;
}
.roadmap h2 span {
  font-size: 23px;
  margin-right: 8px;
}
.roadmap ol {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.roadmap li {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 14px;
  background: #f7f9fb;
  border-radius: 8px;
}
.number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 7px;
  color: #17685b;
  background: #d4f6eb;
  font-size: 13px;
  font-weight: 750;
}
.roadmap strong {
  font-size: 14px;
}
.roadmap p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
  margin: 2px 0 0;
}
.section {
  padding: 30px;
  margin-bottom: 24px;
  scroll-margin-top: 10px;
}
.intro {
  color: #5b6877;
  max-width: 990px;
  margin-bottom: 24px;
}
.grid {
  display: grid;
  gap: 18px;
}
.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid > * {
  min-width: 0;
}
.requirements article {
  border: 1px solid #e3ebed;
  border-radius: 8px;
  padding: 20px;
  background: #fbfcfd;
}
.requirements h3 {
  font-size: 16px;
  margin: 10px 0 7px;
}
.requirements p {
  font-size: 13px;
  color: var(--muted);
}
.icon {
  font-size: 23px;
  color: var(--green);
  font-weight: 650;
}
.quick-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 20px 0 0;
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  gap: 8px;
}
.quick-flow li {
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 9px;
}
.quick-flow b {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: #e8f5f1;
  border-radius: 50%;
  color: var(--green);
}
.step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 17px;
  padding: 25px 0;
  border-top: 1px solid #e7edef;
}
.step:last-child {
  padding-bottom: 0;
}
.step-number {
  background: #daf5ec;
  color: #1c7666;
  font-weight: 750;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
}
.step h3 {
  margin: 0 0 10px;
}
.step p {
  color: #586575;
}
.text-link {
  display: inline-block;
  font-weight: 650;
  margin-bottom: 10px;
}
.muted {
  color: var(--muted);
  font-size: 13px;
}
.ui-example {
  background: #fafcfd;
  border: 1px solid #dde6e8;
  border-radius: 8px;
  margin-top: 18px;
  overflow: hidden;
}
.example-top {
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.example-top span {
  font-size: 11px;
  color: var(--muted);
}
.example-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 18px;
}
.example-row b {
  font-size: 13px;
}
.example-row small {
  display: block;
  color: #71818d;
  letter-spacing: 0.05em;
}
.key-symbol {
  font-size: 24px;
  color: var(--green);
}
.status {
  font-size: 11px;
  color: #287963;
  background: #e0f5ed;
  padding: 2px 8px;
  border-radius: 20px;
}
.example-action {
  font-size: 12px;
  color: #576775;
  margin-left: auto;
}
.notice {
  margin: 20px 0;
  padding: 17px 20px;
  background: #eef9f6;
  border-left: 3px solid #72bda8;
  border-radius: 0 7px 7px 0;
  color: #385f57;
  font-size: 14px;
}
.notice strong {
  color: #25675b;
}
.notice p {
  margin-top: 6px;
  color: #42665f;
}
.notice ul {
  padding-left: 21px;
  margin: 9px 0 0;
}
.notice li + li {
  margin-top: 5px;
}
.route-grid a {
  display: block;
  padding: 23px;
  border: 1px solid #dce5e9;
  border-radius: 9px;
  background: #fbfcfd;
  transition:
    border-color 0.18s,
    transform 0.18s;
}
.route-grid a:hover {
  border-color: #68b5a0;
  transform: translateY(-3px);
  text-decoration: none;
}
.route-icon {
  font-size: 26px;
  font-weight: 750;
  color: #307d6e;
}
.route-grid h3 {
  margin: 8px 0;
  color: var(--ink);
}
.route-grid h3 span {
  float: right;
  color: #829b94;
}
.route-grid p {
  color: #62717f;
  font-size: 14px;
}
.route-grid small {
  font-size: 12px;
  color: #347b6a;
}
.tool-heading {
  display: flex;
  gap: 15px;
  align-items: center;
  margin-bottom: 14px;
}
.tool-heading h2 {
  margin: 0;
}
.tool-heading .eyebrow {
  margin-bottom: 3px;
}
.tool-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: 1px solid #cfe5dc;
  background: #edf9f3;
  color: #267d69;
  border-radius: 12px;
  font-size: 29px;
  font-weight: 750;
}
.tool-section > h3 {
  margin-top: 27px;
}
.tool-section > p {
  color: #586675;
}
.code-block {
  border: 1px solid #dce4ea;
  border-radius: 8px;
  overflow: hidden;
  margin: 16px 0;
  background: #f6f8fa;
  min-width: 0;
}
.code-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 14px;
  background: #eef2f6;
  border-bottom: 1px solid #dce4ea;
  font-size: 12px;
  color: #546373;
}
.code-heading button {
  font-size: 12px;
  line-height: 1.4;
  padding: 6px 12px;
  border: 1px solid #ccd7dd;
  border-radius: 5px;
  background: white;
  color: #40596a;
  cursor: pointer;
  flex: none;
}
.code-heading button:hover {
  border-color: #438e78;
  color: #216d59;
}
.code-heading button:disabled {
  cursor: default;
}
.code-block pre {
  overflow-x: auto;
  padding: 18px;
  margin: 0;
  line-height: 1.75;
  font-size: 13px;
  color: #244c66;
  tab-size: 2;
}
.code-block code {
  background: transparent;
  padding: 0;
  font-size: inherit;
  color: inherit;
  white-space: pre;
}
code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  font-size: 0.88em;
  color: #24637f;
  background: #edf6fa;
  padding: 2px 5px;
  border-radius: 3px;
  overflow-wrap: anywhere;
}
kbd {
  font-family: inherit;
  border: 1px solid #d2dce1;
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 12px;
  background: #fafcfd;
}
.two .code-block {
  margin-top: 6px;
}
.source {
  font-size: 12px;
  color: var(--muted);
  margin-top: 16px;
}
.import-flow {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  background: #f6f9fa;
  border: 1px solid #e2e9eb;
  border-radius: 8px;
  font-size: 13px;
}
.import-flow span {
  flex: 1;
  text-align: center;
}
.import-flow b {
  color: #87a29a;
}
.success-note {
  padding: 20px 23px;
  background: #eaf8f0;
  border: 1px solid #c8e9d8;
  border-radius: 8px;
  margin-top: 24px;
  color: #376856;
}
.success-note strong {
  font-size: 16px;
}
.success-note p {
  margin-top: 6px;
  font-size: 14px;
}
.verify-grid article {
  padding: 20px;
  background: #f7fafb;
  border-radius: 8px;
}
.verify-grid h3 {
  font-size: 16px;
  margin: 12px 0 8px;
}
.verify-grid p,
.checklist p {
  font-size: 14px;
  color: #657381;
}
details {
  border: 1px solid #e1e8eb;
  border-radius: 7px;
  margin-top: 10px;
  background: #fcfdfe;
}
summary {
  position: relative;
  list-style: none;
  padding: 15px 46px 15px 18px;
  cursor: pointer;
  font-weight: 650;
  font-size: 14px;
}
summary::-webkit-details-marker {
  display: none;
}
summary:after {
  content: '+';
  position: absolute;
  right: 18px;
  font-size: 20px;
  font-weight: 400;
  top: 10px;
  color: #607f73;
}
details[open] summary:after {
  content: '−';
}
details[open] summary {
  color: #20715f;
}
details > p {
  padding: 0 18px 18px;
  color: #5d6e7a;
  font-size: 14px;
}
.checklist h3 {
  font-size: 16px;
  margin: 15px 0 7px;
  color: #387467;
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 10px 35px;
  color: #64796f;
}
.site-footer p {
  font-size: 12px;
  margin: 0;
}
.site-footer > a:last-child {
  font-size: 12px;
}
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  border-radius: 8px;
  background: #162f28;
  color: #fff;
  font-size: 14px;
  z-index: 20;
  box-shadow: 0 8px 24px #112c2430;
  max-width: calc(100% - 32px);
  width: max-content;
}
.toast[hidden] {
  display: none;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  background: #fff;
  padding: 10px 20px;
  z-index: 50;
}
.skip-link:focus {
  top: 8px;
}
.hero {
  animation: enter 0.45s ease-out;
}
@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 1000px) {
  .header-inner {
    gap: 10px;
  }
  .header-inner nav a {
    padding: 5px 7px;
    font-size: 12px;
  }
  .brand small {
    display: none;
  }
  .hero-copy {
    padding: 28px;
  }
  .desktop-break {
    display: none;
  }
  .four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 760px) {
  html {
    scroll-padding-top: 133px;
  }
  .wrap {
    width: calc(100% - 32px);
  }
  .header-inner {
    flex-wrap: wrap;
    padding-block: 12px;
    gap: 10px;
  }
  .header-inner nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    justify-content: space-between;
    gap: 0;
    padding: 3px;
  }
  .header-inner nav a {
    font-size: 12px;
    padding: 5px 8px;
  }
  .header-cta {
    font-size: 12px;
    min-height: 36px;
    padding: 5px 12px;
  }
  .brand {
    font-size: 17px;
  }
  .brand img {
    width: 33px;
    height: 33px;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 20px;
    gap: 16px;
    margin-bottom: 16px;
  }
  .hero-copy {
    padding: 25px;
  }
  h1 {
    font-size: 31px;
    line-height: 1.3;
  }
  h2 {
    font-size: 24px;
  }
  .lead {
    font-size: 15px;
  }
  .roadmap {
    padding: 23px;
  }
  .roadmap ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .roadmap li {
    padding: 12px;
    gap: 9px;
  }
  .roadmap strong {
    font-size: 13px;
  }
  .roadmap .number {
    width: 28px;
    height: 28px;
    font-size: 11px;
  }
  .roadmap p {
    font-size: 11px;
  }
  .section {
    padding: 24px;
    margin-bottom: 16px;
  }
  .three,
  .two {
    grid-template-columns: 1fr;
  }
  .three {
    gap: 12px;
  }
  .route-grid a {
    padding: 20px;
  }
  .requirements {
    gap: 10px;
  }
  .requirements article {
    padding: 15px;
  }
  .quick-flow {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .step {
    gap: 11px;
  }
  .example-top {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
  .example-row {
    flex-wrap: wrap;
    padding: 16px;
    gap: 12px;
  }
  .example-action {
    margin-left: 0;
  }
  .import-flow {
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px;
  }
  .import-flow span {
    flex: 1 0 34%;
  }
  .import-flow b:nth-of-type(2) {
    display: none;
  }
  .site-footer {
    flex-wrap: wrap;
    padding-top: 15px;
    gap: 10px;
  }
  .site-footer p {
    order: 3;
    flex-basis: 100%;
  }
  .tool-icon {
    width: 45px;
    height: 45px;
  }
  .code-block pre {
    padding: 15px;
    font-size: 12px;
  }
  .checklist .three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
}
@media (max-width: 400px) {
  h1 {
    font-size: 27px;
  }
  .hero-copy,
  .section {
    padding: 20px;
  }
  .roadmap ol,
  .four {
    grid-template-columns: 1fr;
  }
  .quick-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .tags span {
    font-size: 11px;
  }
  .header-inner nav a {
    padding-inline: 6px;
    font-size: 11px;
  }
  .checklist .three {
    grid-template-columns: 1fr;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .hero {
    animation: none;
  }
  .button,
  .route-grid a {
    transition: none;
  }
  .button:hover,
  .route-grid a:hover {
    transform: none;
  }
}
@media print {
  .site-header,
  .actions,
  .code-heading button,
  .toast,
  .site-footer > a:last-child {
    display: none;
  }
  body {
    background: #fff;
  }
  .wrap {
    width: 100%;
  }
  .panel {
    box-shadow: none;
    break-inside: avoid;
  }
  .hero {
    padding-top: 0;
  }
  .section {
    padding: 20px;
  }
  details > p {
    display: block;
  }
  a {
    color: inherit;
  }
  .code-block pre {
    white-space: pre-wrap;
  }
}