@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap');
:root {
  --bg:#f7f8fa;
  --ink:#17232f;
  --muted:#73808c;
  --blue:#3478ef;
  --line:#e2e7ed;
  --text-body:1rem;
  --text-small:.875rem;
  --text-label:.75rem;
  --font:'DM Sans','Noto Sans SC',sans-serif
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:100px
}
body {
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:var(--text-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased
}
a {
  color:inherit;
  text-decoration:none
}
button,input {
  font:inherit
}
button,a,input,summary {
  -webkit-tap-highlight-color:transparent
}
button {
  cursor:pointer
}
a,button,summary {
  transition:color .2s,background .2s,transform .2s
}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible {
  outline:3px solid #95b9fb;
  outline-offset:5px
}
button:disabled {
  cursor:default
}
img {
  max-width:100%
}
.wrap {
  max-width:1200px;
  width:calc(100% - 96px);
  margin:0 auto
}
.header {
  max-width:1320px;
  margin:auto;
  height:96px;
  padding:0 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px
}
.brand {
  display:inline-flex;
  gap:12px;
  align-items:center;
  font-size:20px;
  font-weight:700;
  letter-spacing:-.7px;
  white-space:nowrap
}
.brand-light {
  font-weight:500
}
.header nav {
  display:flex;
  gap:30px;
  align-items:center;
  font-size:var(--text-body);
  color:#626f7e
}
.header nav a:hover,.text-link:hover,.footer a:hover {
  color:var(--blue)
}
.github-nav {
  padding-left:24px;
  border-left:1px solid var(--line)
}
.button {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  background:var(--blue);
  color:#fff;
  border:1px solid transparent;
  border-radius:8px;
  padding:17px 23px;
  font-weight:600;
  box-shadow:0 5px 12px #3478ef12;
  white-space:nowrap
}
.button:hover {
  background:#2267dc;
  transform:translateY(-2px)
}
.button-small {
  padding:11px 17px;
  font-size:var(--text-small)
}
.button img {
  object-fit:contain
}
.text-link {
  display:inline-flex;
  align-items:center;
  gap:14px;
  font-weight:500;
  font-size:var(--text-body);
  background:none;
  border:0;
  padding:0
}
.hero {
  display:grid;
  grid-template-columns:1fr 1.13fr;
  gap:40px;
  align-items:center;
  padding:76px 0 85px
}
.eyebrow {
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:var(--text-small);
  color:#5d6c7b;
  font-weight:500;
  border:1px solid #dce4ed;
  border-radius:24px;
  padding:7px 10px;
  background:#fff
}
.status-dot {
  height:6px;
  width:6px;
  background:var(--blue);
  border-radius:100%;
  display:inline-block;
  box-shadow:0 0 0 3px #3478ef10
}
.version {
  padding-left:10px;
  margin-left:6px;
  border-left:1px solid var(--line);
  font-family:'DM Sans',sans-serif;
  font-size:var(--text-small);
  color:#788491
}
h1 {
  font-size:clamp(42px,4.1vw,61px);
  line-height:1.3;
  letter-spacing:-2.8px;
  font-weight:800;
  margin:27px 0 22px
}
.accent {
  color:var(--blue)
}
.hero-description {
  color:#64748b;
  line-height:1.95;
  font-size:var(--text-body);
  margin:0
}
.mobile-break {
  display:none
}
.hero-actions {
  display:flex;
  gap:24px;
  align-items:center;
  margin-top:31px
}
.hero-actions .text-link {
  font-size:var(--text-body);
  gap:12px
}
.hero-note {
  display:flex;
  gap:13px;
  align-items:center;
  color:#64748b;
  font-size:var(--text-small);
  letter-spacing:.3px;
  margin-top:21px
}
.hero-note a:hover {
  color:var(--blue)
}
.note-line {
  height:10px;
  width:1px;
  background:#d9e0e8
}
.hero-visual {
  min-width:0;
  padding-top:14px
}
.visual-label {
  font-size:var(--text-label);
  letter-spacing:1.25px;
  font-weight:500;
  color:#64748b;
  display:flex;
  justify-content:space-between;
  margin-bottom:13px;
  padding:0 5px
}
.browser-demo {
  background:white;
  border:1px solid #e0e6ed;
  border-radius:13px;
  box-shadow:0 18px 45px #192c4610;
  overflow:hidden;
  transform:rotate(-1deg)
}
.browser-bar {
  height:43px;
  background:#f0f3f7;
  border-bottom:1px solid #e6ebf1;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 17px
}
.window-dots {
  display:flex;
  gap:5px
}
.window-dots i {
  width:7px;
  height:7px;
  background:#cbd3dd;
  border-radius:100%
}
.address {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:#fff;
  color:#91a0af;
  padding:5px 10px;
  font-size:var(--text-small);
  border-radius:5px;
  width:74%
}
.address #demo-address {
  flex:1;
  color:#758495
}
.demo-canvas {
  padding:26px 25px 22px
}
.demo-heading {
  display:flex;
  align-items:center;
  gap:10px
}
.demo-heading-icon {
  width:31px;
  height:31px;
  border-radius:8px;
  background:#eff5ff;
  color:var(--blue);
  font-size:23px;
  text-align:center
}
.demo-heading strong {
  display:block;
  font-size:1.125rem;
  font-weight:600
}
.demo-heading small {
  display:block;
  color:#64748b;
  font-size:var(--text-small);
  margin-top:5px
}
.live-badge {
  margin-left:auto;
  border:1px solid #d7e9e5;
  background:#f4faf8;
  color:#568e82;
  padding:4px 8px;
  font-size:var(--text-small);
  border-radius:20px
}
.journey {
  position:relative;
  height:270px;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  padding:105px 0 0
}
.route {
  position:absolute;
  inset:0;
  width:100%;
  height:210px;
  overflow:visible
}
.long-path {
  fill:none;
  stroke:#d8e0e8;
  stroke-width:2;
  stroke-dasharray:4 6
}
.direct-path {
  fill:none;
  stroke:var(--blue);
  stroke-width:2.5;
  stroke-dasharray:5 0;
  stroke-linecap:round
}
.route-arrow {
  fill:none;
  stroke:var(--blue);
  stroke-width:2.5;
  stroke-linecap:round;
  stroke-linejoin:round
}
.journey-node {
  z-index:1;
  position:relative;
  text-align:center;
  width:110px;
  flex:0 0 110px
}
.node-icon {
  width:50px;
  height:50px;
  border-radius:13px;
  margin:0 auto 13px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid #e8edf3;
  box-shadow:0 5px 14px #22344905;
  background:#fff
}
.zhihu {
  color:#2985fc;
  font-size:30px;
  font-weight:600
}
.target {
  background:#3478ef;
  border:0;
  color:white;
  font-size:40px;
  box-shadow:0 5px 15px #3478ef30
}
.gate {
  color:#bdc5cd;
  background:#f6f7f8;
  border:1px dashed #d5dce4;
  position:relative;
  font-size:22px
}
.gate .cross {
  position:absolute;
  right:-5px;
  top:-5px;
  background:#ecf1f6;
  border-radius:20px;
  font-size:15px;
  width:20px;
  height:20px;
  color:#8e9ba8;
  border:3px solid white;
  line-height:14px
}
.journey-node strong {
  display:block;
  font-size:var(--text-small);
  font-weight:600
}
.journey-node small {
  font-size:var(--text-small);
  color:#64748b;
  margin-top:6px;
  display:block
}
.middle strong {
  text-decoration:line-through;
  color:#64748b
}
.route-label {
  position:absolute;
  top:25px;
  left:50%;
  transform:translateX(-50%);
  color:var(--blue);
  background:#fff;
  white-space:nowrap;
  font-size:var(--text-label);
  letter-spacing:1.4px;
  padding:5px 9px;
  border:1px solid #e3edff;
  border-radius:12px
}
.destination-preview {
  border:1px solid #e6edf3;
  background:#fafbfd;
  border-radius:8px;
  display:flex;
  align-items:center;
  padding:14px;
  gap:13px
}
.preview-mark {
  font-size:23px;
  color:#a8b6c4
}
.destination-preview strong {
  display:block;
  font-size:var(--text-body);
  font-weight:500
}
.destination-preview small {
  display:block;
  font-size:var(--text-small);
  color:#64748b;
  margin-top:4px
}
.preview-check {
  margin-left:auto;
  width:22px;
  height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:var(--text-small);
  color:#77a99a;
  background:#ecf6f1;
  border-radius:100%
}
.demo-controls {
  border-top:1px solid #edf0f4;
  min-height:64px;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px
}
.demo-controls>div {
  display:flex;
  align-items:center;
  gap:10px
}
.demo-controls>div>span {
  font-size:var(--text-small);
  color:#64748b
}
.demo-controls strong {
  font-weight:400;
  font-size:var(--text-small);
  margin-left:5px
}
.switch {
  width:29px;
  height:17px;
  background:var(--blue);
  border:0;
  border-radius:20px;
  padding:3px;
  display:flex;
  justify-content:flex-end
}
.switch span {
  width:11px;
  height:11px;
  background:white;
  border-radius:50%;
  box-shadow:0 1px 3px #17232f25
}
.switch[aria-checked=false] {
  background:#b7c2cf;
  justify-content:flex-start
}
.demo-caption {
  font-size:var(--text-small);
  color:#64748b
}
.visual-foot {
  display:flex;
  gap:8px;
  color:#64748b;
  font-size:var(--text-small);
  align-items:center;
  margin-top:22px;
  padding:0 5px
}
.tiny-arrow {
  color:var(--blue);
  font-size:17px
}
.visual-stamp {
  font-size:var(--text-label);
  letter-spacing:.9px;
  margin-left:auto;
  color:#64748b
}
.demo-canvas[data-enabled=false] .direct-path,.demo-canvas[data-enabled=false] .route-arrow {
  opacity:0
}
.demo-canvas[data-enabled=false] .long-path {
  stroke:#edb26b;
  stroke-dasharray:0;
  stroke-width:2.5
}
.demo-canvas[data-enabled=false] .middle strong {
  text-decoration:none;
  color:#a57742
}
.demo-canvas[data-enabled=false] .gate {
  background:#fff6e9;
  border-color:#f4d9b5;
  color:#bb8a50
}
.demo-canvas[data-enabled=false] .cross {
  display:none
}
.demo-canvas[data-enabled=false] .route-label {
  color:#aa8049;
  border-color:#f1dfc9
}
.demo-canvas[data-enabled=false] .destination-preview {
  opacity:.5
}
.demo-canvas[data-enabled=false] .live-badge {
  color:#aa8049;
  background:#fff8ef;
  border-color:#f4e5d0
}
.site-strip {
  display:flex;
  align-items:center;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:27px 0;
  gap:36px
}
.site-strip p {
  font-size:var(--text-small);
  line-height:1.7;
  color:#64748b;
  white-space:normal;
  margin:0
}
.site-strip p strong {
  font-weight:500;
  color:#616e7c
}
.site-strip>div {
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex:1;
  color:#85909d;
  gap:18px;
  opacity:.8;
  font-size:22px
}
.site-strip>div span {
  white-space:nowrap
}
.strip-zhihu {
  font-weight:700
}
.strip-juejin {
  font-size:20px
}
.strip-juejin b {
  font-size:25px
}
.strip-csdn {
  font-family:Georgia,serif;
  letter-spacing:-1px;
  font-weight:700
}
.strip-sspai {
  font-size:18px;
  font-weight:500
}
.strip-jianshu {
  font-weight:700
}
.strip-gitee {
  font-weight:700;
  letter-spacing:-1px
}
.site-strip>a {
  font-size:var(--text-small);
  color:#64748b;
  white-space:nowrap
}
.section {
  padding-top:100px;
  padding-bottom:96px
}
.section-intro {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:35px
}
.section-kicker {
  font-family:'DM Sans',sans-serif;
  font-size:var(--text-label);
  font-weight:600;
  letter-spacing:1.5px;
  color:#64748b;
  display:block;
  margin-bottom:18px
}
h2 {
  font-size:33px;
  letter-spacing:-1px;
  font-weight:700;
  line-height:1.5;
  margin:0
}
.section-intro>p {
  color:#64748b;
  font-size:var(--text-body);
  line-height:1.9;
  margin:0 0 4px
}
.feature-grid {
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:18px
}
.feature {
  position:relative;
  border:1px solid #e0e6ed;
  background:#fff;
  border-radius:12px;
  padding:28px;
  min-height:300px;
  overflow:hidden
}
.feature-main {
  background:#edf3fe;
  border-color:#dfe9fa
}
.feature-number {
  font-family:'DM Sans',sans-serif;
  color:#64748b;
  font-size:var(--text-small)
}
.feature h3 {
  font-size:1.25rem;
  letter-spacing:-.4px;
  margin:19px 0 12px;
  font-weight:600
}
.feature p {
  font-size:var(--text-body);
  line-height:1.9;
  color:#64748b;
  margin:0 0 22px;
  max-width:290px
}
.feature-tag {
  border:1px solid #d7e4fb;
  color:#6286b8;
  font-size:var(--text-small);
  background:#f8fbff;
  padding:4px 8px;
  border-radius:4px
}
.feature .text-link {
  font-size:var(--text-body);
  color:#738da9;
  gap:8px
}
.speed-art {
  display:flex;
  align-items:center;
  height:110px;
  gap:8px;
  padding:20px 0 0 20px
}
.speed-art span {
  height:3px;
  background:#c0d6fa;
  transform:rotate(-35deg);
  border-radius:4px;
  display:block;
  width:30px
}
.speed-art span:nth-child(2) {
  width:48px
}
.speed-art span:nth-child(3) {
  width:67px
}
.speed-art b {
  font-size:65px;
  color:var(--blue);
  line-height:1;
  font-weight:500;
  transform:translate(-5px,-3px)
}
.rule-art {
  height:110px;
  padding-top:18px;
  max-width:260px;
  margin:0 auto
}
.rule-art code {
  display:block;
  font-size:var(--text-body);
  text-align:center;
  color:#65778b;
  letter-spacing:1px
}
.rule-art code span {
  color:#b9c7d7;
  padding:0 9px
}
.rule-art div {
  display:flex;
  align-items:center;
  border:1px solid #e8edf3;
  border-radius:6px;
  padding:10px;
  font-size:var(--text-small);
  color:#64748b;
  gap:8px;
  margin-top:13px;
  box-shadow:0 3px 8px #202e4104
}
.rule-art i {
  width:6px;
  height:6px;
  background:#87b2f8;
  border-radius:50%
}
.rule-art b {
  margin-left:auto;
  font-size:14px;
  color:#7899c5
}
.light-art {
  height:110px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding-top:10px
}
.light-art span {
  font-size:40px;
  font-weight:400;
  color:#d5dfe9;
  letter-spacing:16px;
  padding-left:16px;
  line-height:1.1
}
.light-art b {
  color:#638ec8;
  font-size:40px;
  font-weight:400
}
.light-art small {
  font-size:var(--text-label);
  letter-spacing:2px;
  color:#64748b;
  margin-top:10px
}
.supported {
  background:#f0f3f7;
  border-top:1px solid #e7ecf1;
  border-bottom:1px solid #e7ecf1;
  padding-top:75px;
  padding-bottom:65px
}
.site-toolbar {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:25px;
  gap:20px
}
.filters {
  display:flex;
  gap:5px
}
.filter {
  border:0;
  background:transparent;
  border-radius:6px;
  color:#64748b;
  padding:9px 14px;
  font-size:var(--text-body)
}
.filter.active {
  background:#fff;
  color:#3979d9;
  box-shadow:0 1px 5px #2c456308
}
.filter span {
  font-size:var(--text-small);
  margin-left:5px;
  opacity:.75
}
.search {
  display:flex;
  align-items:center;
  gap:10px;
  background:#f8fafc;
  border:1px solid #dfe6ef;
  border-radius:6px;
  padding:7px 11px;
  color:#9aabbc
}
.search>span {
  font-size:20px;
  line-height:1
}
.search input {
  border:0;
  outline:0;
  background:none;
  width:200px;
  font-size:var(--text-body);
  color:#617286;
  padding:3px
}
.search input::placeholder {
  color:#64748b
}
.site-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px
}
.site-card {
  border:1px solid #e2e8f0;
  border-radius:8px;
  background:#fff;
  display:flex;
  align-items:center;
  padding:18px 15px;
  gap:12px;
  min-width:0
}
.site-icon {
  display:flex;
  align-items:center;
  justify-content:center;
  width:35px;
  height:35px;
  border-radius:8px;
  background:var(--icon-bg);
  color:var(--icon-color);
  font-size:18px;
  font-weight:600;
  flex-shrink:0
}
.site-card strong {
  font-size:var(--text-body);
  font-weight:500;
  display:block;
  white-space:normal
}
.site-card small {
  display:block;
  font-family:'DM Sans',sans-serif;
  font-size:var(--text-small);
  color:#64748b;
  margin-top:4px;
  overflow-wrap:anywhere
}
.site-card>div:nth-child(2) {
  min-width:0
}
.site-card .site-tick {
  margin-left:auto;
  font-size:var(--text-small);
  color:#9bb2a9
}
.site-bottom {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-top:22px;
  font-size:var(--text-small);
  color:#64748b
}
.site-bottom .text-link {
  font-size:var(--text-body);
  color:#6988b0
}
.site-bottom>a:hover {
  color:var(--blue)
}
.empty-state {
  padding:28px;
  text-align:center;
  color:#64748b;
  font-size:var(--text-body)
}
.guide {
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:100px;
  align-items:center
}
.guide-description {
  font-size:var(--text-body);
  color:#64748b;
  line-height:1.9;
  margin:20px 0 30px
}
.steps {
  padding:0;
  margin:0;
  list-style:none
}
.steps li {
  display:flex;
  gap:19px;
  margin-bottom:24px
}
.steps li>span {
  width:28px;
  height:28px;
  border:1px solid #dfe8f2;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#6695d4;
  font-size:var(--text-small);
  font-family:'DM Sans',sans-serif;
  background:#f4f8fe;
  flex-shrink:0
}
.steps h3 {
  margin:3px 0 7px;
  font-size:1.125rem;
  font-weight:500
}
.steps p {
  margin:0;
  font-size:var(--text-body);
  color:#64748b;
  line-height:1.8
}
.guide-image {
  background:#eaf0f7;
  border:1px solid #e1e7ef;
  border-radius:12px;
  padding:23px 30px;
  margin:0;
  text-align:center;
  position:relative
}
.image-top {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:var(--text-small);
  color:#64748b;
  margin-bottom:22px
}
.guide-image img {
  width:100%;
  height:auto;
  max-height:410px;
  max-width:100%;
  object-fit:contain;
  display:block;
  margin:auto;
  border-radius:8px;
  box-shadow:0 10px 25px #192c4612
}
.guide-image figcaption {
  font-size:var(--text-small);
  color:#64748b;
  margin-top:21px;
  line-height:1.8
}
.faq {
  display:grid;
  grid-template-columns:1fr 1.45fr;
  gap:60px;
  border-top:1px solid var(--line);
  padding-top:68px;
  padding-bottom:75px
}
.faq h2 {
  font-size:28px
}
.faq>div>.text-link {
  color:#64748b;
  font-size:var(--text-body);
  margin-top:23px
}
.faq-list details {
  border-bottom:1px solid var(--line)
}
.faq-list details:first-child {
  border-top:1px solid var(--line)
}
summary {
  padding:21px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  cursor:pointer;
  font-size:var(--text-body);
  list-style:none
}
summary::-webkit-details-marker {
  display:none
}
summary span {
  font-size:17px;
  color:#94a4b5;
  font-weight:400
}
details[open] summary span {
  transform:rotate(45deg)
}
details p {
  font-size:var(--text-body);
  line-height:1.9;
  color:#64748b;
  margin:0 25px 23px 0
}
details p a {
  color:var(--blue);
  text-decoration:underline
}
.install {
  background:#eaf1ff;
  border:1px solid #dce7fa;
  border-radius:14px;
  position:relative;
  overflow:hidden;
  text-align:center;
  padding:57px 30px
}
.install .section-kicker {
  color:#64748b;
  position:relative;
  font-size:var(--text-label)
}
.install h2 {
  position:relative;
  font-size:36px;
  line-height:1.4
}
.install>p {
  position:relative;
  color:#64748b;
  font-size:var(--text-body);
  margin:19px 0 28px
}
.install-buttons {
  display:flex;
  justify-content:center;
  gap:11px;
  position:relative
}
.install-buttons .button {
  font-size:var(--text-body);
  padding:13px 20px
}
.button-white {
  background:#fff;
  color:#4c678b;
  border-color:#d8e4f4;
  box-shadow:none
}
.button-white:hover {
  background:#f5f9ff;
  color:var(--blue)
}
.install-note {
  display:block;
  font-size:var(--text-small);
  color:#64748b;
  letter-spacing:.3px;
  margin-top:22px;
  position:relative
}
.install-pattern {
  position:absolute;
  font-family:'DM Sans',sans-serif;
  font-size:450px;
  line-height:.7;
  right:-25px;
  top:17px;
  color:#dce7fa;
  transform:rotate(-6deg);
  pointer-events:none
}
.footer {
  display:flex;
  align-items:center;
  gap:22px;
  padding:37px 0 34px;
  color:#64748b;
  font-size:var(--text-small)
}
.footer .brand {
  font-size:1.125rem;
  letter-spacing:-.5px;
  color:#64768b;
  gap:9px
}
.footer>div {
  margin-left:auto;
  display:flex;
  gap:23px
}
.skip-link {
  position:absolute;
  top:-80px;
  left:10px;
  background:var(--blue);
  color:#fff;
  padding:12px;
  z-index:10
}
.skip-link:focus {
  top:10px
}
[hidden] {
  display:none!important
}
@media(min-width:1500px) {
  .hero {
    padding-top:95px;
    padding-bottom:105px
  }
  .wrap {
    max-width:1240px
  }
  .header {
    max-width:1360px
  }
  .hero h1 {
    font-size:64px
  }
  .demo-canvas {
    padding-top:31px;
    padding-bottom:27px
  }
  .journey {
    height:270px
  }
  .route {
    height:210px
  }
  .journey-node {
    width:104px;
    flex-basis:104px
  }
}
@media(max-width:1100px) {
  .wrap {
    width:calc(100% - 64px)
  }
  .header {
    padding:0 32px
  }
  .header nav {
    gap:19px
  }
  .hero {
    gap:25px
  }
  .hero h1 {
    font-size:45px
  }
  .hero-actions {
    gap:16px;
    flex-wrap:wrap
  }
  .hero-actions .button {
    padding:14px 18px
  }
  .hero-description {
    font-size:var(--text-body)
  }
  .visual-stamp {
    display:none
  }
  .demo-canvas {
    padding:23px 18px 18px
  }
  .journey-node {
    width:90px;
    flex-basis:90px
  }
  .route {
    height:210px
  }
  .site-strip {
    gap:25px
  }
  .site-strip>div {
    font-size:18px;
    gap:10px
  }
  .strip-sspai {
    font-size:15px
  }
  .feature {
    padding:23px
  }
  .feature h3 {
    font-size:1.25rem
  }
  .guide {
    gap:55px
  }
  .site-card {
    gap:9px;
    padding:15px 11px
  }
  .site-icon {
    width:30px;
    height:30px;
    font-size:15px
  }
  .site-card strong {
    font-size:var(--text-body)
  }
  .search input {
    width:190px
  }
}
@media(max-width:820px) {
  .header {
    height:80px
  }
  .brand {
    font-size:18px
  }
  .header nav {
    display:none
  }
  .hero {
    grid-template-columns:1fr;
    padding:38px 0 52px;
    gap:42px
  }
  .hero-copy {
    text-align:center
  }
  .hero h1 {
    font-size:52px;
    letter-spacing:-2px
  }
  .hero-actions,.hero-note {
    justify-content:center
  }
  .hero-description {
    font-size:var(--text-body)
  }
  .hero-visual {
    max-width:590px;
    width:100%;
    margin:auto;
    padding-top:0
  }
  .journey-node {
    width:100px;
    flex-basis:100px
  }
  .journey {
    height:270px
  }
  .route {
    height:210px
  }
  .visual-stamp {
    display:block
  }
  .site-strip {
    flex-wrap:wrap;
    gap:20px;
    padding:23px 0
  }
  .site-strip p br {
    display:none
  }
  .site-strip p {
    width:100%;
    text-align:center
  }
  .site-strip p strong {
    margin-left:5px
  }
  .site-strip>div {
    gap:20px;
    justify-content:center;
    flex-wrap:wrap
  }
  .site-strip>a {
    display:none
  }
  .section {
    padding-top:65px;
    padding-bottom:65px
  }
  .section-intro {
    align-items:flex-start;
    flex-direction:column;
    gap:20px
  }
  .section-intro p br {
    display:none
  }
  h2 {
    font-size:30px
  }
  .feature-grid {
    grid-template-columns:1fr
  }
  .feature {
    min-height:0;
    padding:25px 28px
  }
  .feature p {
    max-width:none
  }
  .feature-number {
    position:absolute;
    right:25px;
    top:24px
  }
  .speed-art,.rule-art,.light-art {
    margin:0;
    height:100px;
    max-width:260px
  }
  .speed-art {
    padding-left:3px
  }
  .feature h3 {
    font-size:1.25rem
  }
  .feature .text-link,.feature-tag {
    line-height:1.6
  }
  .feature p {
    font-size:var(--text-body)
  }
  .site-grid {
    grid-template-columns:repeat(3,1fr)
  }
  .site-toolbar {
    flex-direction:column;
    align-items:flex-start;
    gap:16px
  }
  .search {
    width:100%
  }
  .search input {
    width:100%
  }
  .site-card {
    padding:16px 12px
  }
  .guide {
    grid-template-columns:1fr;
    gap:32px
  }
  .guide-description br {
    display:none
  }
  .guide-image {
    max-width:480px;
    width:100%;
    margin:auto
  }
  .faq {
    grid-template-columns:1fr;
    gap:26px
  }
  .faq .section-kicker {
    margin-bottom:10px
  }
  .faq>div>.text-link {
    margin-top:14px
  }
  .install h2 {
    font-size:32px
  }
  .install-buttons .button {
    padding:13px 14px;
    font-size:var(--text-body);
    gap:8px
  }
  .footer {
    flex-wrap:wrap
  }
  .footer>div {
    margin-left:auto;
    gap:15px
  }
  .footer>span {
    display:none
  }
}
@media(max-width:520px) {
  .wrap {
    width:calc(100% - 40px)
  }
  .header {
    padding:0 20px;
    height:73px;
    gap:10px
  }
  .brand {
    font-size:18px;
    gap:8px
  }
  .brand img {
    width:25px;
    height:25px
  }
  .button-small {
    font-size:var(--text-small);
    padding:9px 11px;
    gap:6px
  }
  .hero {
    padding-top:29px;
    gap:36px
  }
  .eyebrow {
    font-size:var(--text-small)
  }
  .hero h1 {
    font-size:41px;
    letter-spacing:-1.8px;
    margin:24px 0 18px
  }
  .hero-description {
    font-size:var(--text-body);
    line-height:1.95
  }
  .mobile-break {
    display:block
  }
  .hero-actions {
    flex-direction:column;
    gap:20px;
    margin-top:25px
  }
  .hero-actions .button {
    padding:14px 23px
  }
  .hero-note {
    font-size:var(--text-small);
    gap:10px
  }
  .visual-label {
    font-size:var(--text-label);
    letter-spacing:1px
  }
  .browser-demo {
    transform:none
  }
  .browser-bar {
    padding:0 12px;
    gap:15px;
    height:46px
  }
  .address {
    font-size:var(--text-small);
    width:77%
  }
  .window-dots i {
    width:6px;
    height:6px
  }
  .demo-canvas {
    padding:21px 13px 16px
  }
  .demo-heading strong {
    font-size:1.125rem
  }
  .demo-heading small {
    font-size:var(--text-small)
  }
  .live-badge {
    font-size:var(--text-small)
  }
  .demo-heading-icon {
    width:27px;
    height:27px;
    font-size:20px
  }
  .journey {
    height:270px;
    padding-bottom:18px
  }
  .route {
    height:210px
  }
  .journey-node {
    width:90px;
    flex-basis:90px
  }
  .node-icon {
    width:42px;
    height:42px;
    border-radius:10px;
    margin-bottom:11px
  }
  .zhihu {
    font-size:25px
  }
  .target {
    font-size:32px
  }
  .journey-node strong {
    font-size:var(--text-small)
  }
  .journey-node small {
    font-size:var(--text-small)
  }
  .route-label {
    top:24px;
    font-size:var(--text-label);
    padding:5px 7px;
    letter-spacing:1px
  }
  .demo-controls {
    padding:0 14px;
    min-height:64px
  }
  .demo-controls>div>span {
    font-size:var(--text-small)
  }
  .demo-controls strong {
    font-size:var(--text-small);
    margin-left:3px
  }
  .demo-caption {
    font-size:var(--text-label)
  }
  .visual-foot {
    font-size:var(--text-small);
    margin-top:14px
  }
  .visual-stamp {
    display:none
  }
  .destination-preview {
    padding:12px;
    gap:9px
  }
  .destination-preview strong {
    font-size:var(--text-body)
  }
  .destination-preview small {
    font-size:var(--text-small)
  }
  .site-strip>div {
    gap:20px 24px;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    width:100%;
    text-align:center;
    font-size:20px
  }
  .section {
    padding-top:52px;
    padding-bottom:52px
  }
  .section-kicker {
    font-size:var(--text-label);
    margin-bottom:14px
  }
  h2 {
    font-size:28px
  }
  .section-intro>p {
    font-size:var(--text-body)
  }
  .feature-grid {
    gap:13px
  }
  .feature {
    padding:22px
  }
  .feature p {
    font-size:var(--text-body)
  }
  .site-grid {
    grid-template-columns:repeat(2,1fr);
    gap:9px
  }
  .site-card {
    gap:8px;
    padding:15px 10px
  }
  .site-card strong {
    font-size:var(--text-body)
  }
  .site-card small {
    font-size:var(--text-small)
  }
  .site-icon {
    width:27px;
    height:27px;
    font-size:14px
  }
  .site-tick {
    display:none
  }
  .filters {
    gap:1px;
    width:100%;
    justify-content:space-between
  }
  .filter {
    font-size:var(--text-body);
    padding:9px 7px
  }
  .filter span {
    margin-left:2px
  }
  .site-bottom {
    flex-wrap:wrap;
    row-gap:15px;
    font-size:var(--text-small)
  }
  .site-bottom>a {
    width:100%;
    text-align:center;
    padding-top:13px;
    border-top:1px solid #e2e8f0
  }
  .site-bottom .text-link {
    font-size:var(--text-body)
  }
  .guide-image {
    padding:22px
  }
  .guide-description {
    font-size:var(--text-body)
  }
  .steps p {
    font-size:var(--text-body)
  }
  .faq h2 {
    font-size:28px
  }
  summary {
    font-size:var(--text-body);
    padding:19px 0
  }
  .install {
    padding:38px 20px;
    border-radius:10px
  }
  .install h2 {
    font-size:29px
  }
  .install-buttons {
    flex-direction:column;
    max-width:240px;
    margin:auto;
    gap:9px
  }
  .install-buttons .button {
    font-size:var(--text-body)
  }
  .install-pattern {
    font-size:360px;
    right:-130px;
    top:67px
  }
  .install>p {
    font-size:var(--text-body)
  }
  .install-note {
    font-size:var(--text-small)
  }
  .footer {
    justify-content:center;
    padding:27px 0;
    gap:18px
  }
  .footer>div {
    margin:0;
    width:100%;
    justify-content:center;
    font-size:var(--text-small)
  }
  .footer .brand {
    font-size:1.125rem
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  a,button,summary {
    transition:none
  }
}
/* Readable type needs room at every breakpoint, rather than smaller text. */
.button {
  font-size: var(--text-body);
  min-height: 48px;
}
.button-small {
  font-size: var(--text-small);
  min-height: 44px;
}
.hero-actions {
  flex-wrap: wrap;
}
.hero-note {
  flex-wrap: wrap;
}
.demo-heading > div {
  min-width: 0;
  flex: 1;
}
.demo-heading-icon {
  flex-shrink: 0;
}
.live-badge {
  white-space: nowrap;
}
.journey-node {
  width: 130px;
  flex-basis: 130px;
  line-height: 1.5;
}
.journey-node small {
  min-height: 42px;
  text-wrap: balance;
}
.destination-preview > div {
  min-width: 0;
}
.preview-mark, .preview-check {
  flex-shrink: 0;
}
.demo-controls {
  padding-top: 12px;
  padding-bottom: 12px;
  flex-wrap: wrap;
}
.demo-controls > div > span {
  display: flex;
  flex-wrap: wrap;
  column-gap: 8px;
}
.demo-controls strong {
  margin-left: 0;
}
.switch {
  width: 44px;
  height: 28px;
  padding: 5px;
  flex-shrink: 0;
}
.switch span {
  width: 18px;
  height: 18px;
}
.visual-foot {
  flex-wrap: wrap;
}
.site-strip {
  flex-wrap: wrap;
}
.site-strip > div {
  min-width: 0;
  flex-wrap: wrap;
}
.feature p {
  max-width: none;
}
.filters {
  flex-wrap: wrap;
}
.filter {
  min-height: 44px;
}
.search {
  min-height: 44px;
}
.search input {
  min-width: 0;
}
.site-grid {
  align-items: stretch;
}
.site-card strong {
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.5;
}
.site-card small {
  line-height: 1.5;
}
.site-bottom {
  flex-wrap: wrap;
  row-gap: 16px;
}
.site-bottom .text-link {
  min-height: 44px;
}
.steps li > span {
  width: 36px;
  height: 36px;
}
.section-intro > p, .feature p, .guide-description, .steps p, details p {
  color: #526477;
  line-height: 1.8;
}
.footer {
  flex-wrap: wrap;
}
.footer > div {
  flex-wrap: wrap;
}
@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .hero-copy {
    text-align: center;
  }
  .hero-actions, .hero-note {
    justify-content: center;
  }
  .hero-visual {
    width: 100%;
    max-width: 640px;
    margin: auto;
  }
  .header nav {
    gap: 20px;
  }
  .github-nav {
    padding-left: 15px;
  }
  .site-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (max-width: 820px) {
  .site-strip > div {
    width: 100%;
  }
  .site-strip p {
    width: 100%;
  }
  .section-intro p br {
    display: none;
  }
  .hero-description {
    max-width: 540px;
    margin: auto;
  }
  .mobile-break {
    display: block;
  }
}
@media (max-width: 520px) {
  .header .brand {
    font-size: 17px;
  }
  .header .button-small {
    padding: 9px 10px;
    gap: 5px;
  }
  .hero-description {
    font-size: var(--text-body);
  }
  .visual-label span:last-child, .demo-caption {
    display: none;
  }
  .route-label {
    letter-spacing: .5px;
  }
  .journey-node {
    width: 30%;
    flex-basis: 30%;
  }
  .demo-heading {
    gap: 8px;
  }
  .demo-heading-icon {
    display: none;
  }
  .live-badge {
    font-size: var(--text-small);
  }
  .demo-controls {
    padding-left: 13px;
    padding-right: 13px;
  }
  .demo-controls > div {
    gap: 8px;
  }
  .site-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }
  .filter {
    padding: 9px 8px;
  }
  .site-card {
    align-items: flex-start;
  }
  .site-card .site-icon {
    width: 28px;
    height: 28px;
    margin-top: 3px;
  }
  .site-bottom > a {
    font-size: var(--text-small);
  }
  .steps p {
    font-size: var(--text-body);
  }
  .install-buttons .button {
    font-size: var(--text-body);
  }
  .footer > div {
    gap: 16px;
    font-size: var(--text-small);
  }
}
@media (max-width: 360px) {
  .header {
    padding-left: 16px;
    padding-right: 16px;
    gap: 6px;
  }
  .header .brand {
    font-size: 15px;
    gap: 5px;
  }
  .header .brand img {
    width: 23px;
    height: 23px;
  }
  .header .button-small {
    padding-left: 8px;
    padding-right: 8px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .site-card {
    padding: 13px 10px;
  }
  .site-card .site-icon {
    display: none;
  }
}