:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --surface-soft: #f8f8fa;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --blue-soft: #eaf4ff;
  --line: #d2d2d7;
  --line-soft: #e8e8ed;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.06);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --content-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html[data-language="zh-CN"] [data-lang="en"] {
  display: none !important;
}

html[data-language="en"] [data-lang="zh-CN"] {
  display: none !important;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  color: var(--blue-hover);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--surface-soft);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 0.08em 0.35em;
  font-size: 0.92em;
}

.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;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  background: var(--ink);
  color: #ffffff;
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform 0.18s ease;
}

.skip-link:focus {
  transform: translateY(0);
  color: #ffffff;
  text-decoration: none;
}

.noscript-message {
  position: fixed;
  z-index: 120;
  right: 16px;
  bottom: 16px;
  max-width: 360px;
  padding: 14px 16px;
  background: #fff4e5;
  border: 1px solid #f0c37a;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  color: #5d3d00;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(251, 251, 253, 0.88);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.nav-shell {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: var(--content-width);
  min-height: 64px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  flex: 0 0 auto;
}

.brand:hover {
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  background: var(--ink);
  color: #ffffff;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-copy {
  display: flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}

.brand-text {
  font-size: 16px;
  font-weight: 700;
}

.brand-sub {
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.nav-links a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.nav-actions-end {
  margin-left: auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.button:hover {
  text-decoration: none;
}

.button-primary {
  background: var(--blue);
  color: #ffffff;
}

.button-primary:hover {
  background: var(--blue-hover);
  color: #ffffff;
}

.button-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}

.button-secondary:hover {
  border-color: var(--muted);
  color: var(--blue);
  text-decoration: none;
}

.button-small {
  min-height: 36px;
  padding: 0 14px;
  font-size: 14px;
}

.button-large {
  min-height: 50px;
  padding: 0 24px;
  font-size: 16px;
}

.icon-text-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--ink);
  min-height: 36px;
  padding: 0 12px;
}

.icon-text-button:hover {
  background: rgba(0, 0, 0, 0.04);
}

.language-toggle {
  font-size: 14px;
  font-weight: 600;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  padding: 10px;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
}

.menu-toggle:hover {
  background: rgba(0, 0, 0, 0.04);
}

.menu-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

.hero {
  padding: 96px 24px 64px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  text-align: center;
}

.hero-copy {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0;
  font-size: 60px;
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 660px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 24px;
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.product-preview-section {
  padding: 0 24px 88px;
}

.section-shell {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.product-preview {
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 48px;
  padding: 0 16px;
  background: var(--surface-soft);
  border-bottom: 1px solid var(--line-soft);
}

.window-dots {
  display: flex;
  gap: 7px;
}

.window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ff5f57;
}

.window-dots span:nth-child(2) {
  background: #febc2e;
}

.window-dots span:nth-child(3) {
  background: #28c840;
}

.preview-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.preview-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  color: #1d7a34;
  font-size: 12px;
  font-weight: 600;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #28c840;
}

.preview-body {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  min-height: 430px;
}

.preview-sidebar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 12px;
  background: #fafafa;
  border-right: 1px solid var(--line-soft);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 0 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
}

.sidebar-item-active {
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 600;
}

.preview-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  padding: 0 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--muted);
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
}

.snippet-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.snippet-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 66px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
}

.snippet-row-active {
  border-color: rgba(0, 113, 227, 0.42);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.07);
}

.trigger-code {
  display: inline-block;
  color: var(--blue);
  font-weight: 700;
  background: transparent;
  border: 0;
  padding: 0;
}

.snippet-preview {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 390px;
}

.copy-badge {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
}

.add-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 42px;
  margin-top: auto;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
}

.add-button:hover {
  background: var(--blue-soft);
  border-color: rgba(0, 113, 227, 0.5);
}

.content-section {
  padding: 88px 24px;
}

.content-section:nth-of-type(even) {
  background: #ffffff;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading h2,
.page-hero h1 {
  margin: 0;
  font-size: 40px;
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: 0;
}

.section-description {
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 208px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 22px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 9px;
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-card h3 {
  margin: 0 0 9px;
  font-size: 17px;
  letter-spacing: 0;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.demo-section {
  background: #ffffff;
}

.demo-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  transition: border-color 0.18s ease;
}

.demo-editor,
.demo-output {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.demo-stage.is-expanded .demo-editor {
  border-color: rgba(0, 113, 227, 0.55);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.08);
}

.demo-label {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.editor-surface,
.output-surface {
  display: flex;
  align-items: center;
  min-height: 76px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 20px;
  overflow-wrap: anywhere;
}

.demo-text,
.result-value {
  display: inline-block;
  min-height: 1.5em;
  line-height: 1.45;
}

.result-value {
  color: var(--blue);
  font-weight: 600;
}

.caret {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  margin-left: 2px;
  background: var(--blue);
  animation: blink 1s steps(1, end) infinite;
}

.demo-hint {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.keycap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 26px;
  padding: 0 7px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 700;
}

.demo-controls {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.limitation-note {
  max-width: 760px;
  margin: 28px auto 0;
  padding: 14px 16px;
  color: var(--muted);
  background: var(--bg);
  border-left: 3px solid #f0a63c;
  border-radius: 5px;
  font-size: 13px;
  text-align: left;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-item {
  position: relative;
  padding: 28px 26px 26px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.step-number {
  display: block;
  margin-bottom: 28px;
  color: var(--blue);
  font-size: 20px;
  font-weight: 700;
}

.step-item h3 {
  margin: 0 0 10px;
  font-size: 19px;
  letter-spacing: 0;
}

.step-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.resource-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  color: var(--ink);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.resource-card:hover {
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.08);
}

.resource-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 9px;
}

.resource-icon svg {
  width: 20px;
  height: 20px;
}

.resource-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  letter-spacing: 0;
}

.resource-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.card-arrow {
  color: var(--blue);
  font-size: 22px;
}

.site-footer {
  padding: 52px 24px 24px;
  background: var(--bg);
  border-top: 1px solid var(--line);
}

.footer-shell {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
}

.footer-brand {
  max-width: 320px;
}

.footer-tagline {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
}

.footer-column h2 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0;
}

.footer-column a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.footer-column a:hover {
  color: var(--blue);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 38px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 13px;
}

.footer-bottom p {
  margin: 0;
}

.footer-shell-centered {
  text-align: center;
}

.site-footer-minimal {
  padding: 30px 24px;
}

.page-hero {
  padding: 88px 24px 52px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

.page-hero h1 {
  margin: 0;
}

.page-lead {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.legal-section,
.support-section {
  padding: 0 24px 88px;
}

.legal-shell {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

.legal-content {
  padding: 44px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.legal-intro {
  color: var(--ink);
  font-size: 17px;
}

.legal-intro p {
  margin: 0 0 16px;
}

.legal-block {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--line-soft);
}

.legal-block h2 {
  margin: 0 0 16px;
  font-size: 22px;
  letter-spacing: 0;
}

.legal-block p,
.faq-answer p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 15px;
}

.legal-block p:last-child,
.faq-answer p:last-child {
  margin-bottom: 0;
}

.contact-inline {
  margin-top: 14px;
}

.notice-box,
.review-note {
  margin-top: 28px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: #fff8e8;
  border: 1px solid #f0d48a;
  color: #5d4500;
}

.notice-box strong,
.review-note strong {
  display: block;
  margin-bottom: 6px;
}

.notice-box p,
.review-note p {
  margin: 0;
  color: #6d5b2c;
  font-size: 14px;
}

.review-note {
  background: #eef5ff;
  border-color: #b9d4f7;
  color: #234b7a;
}

.review-note p {
  color: #3c5d83;
}

.support-shell {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

.support-intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 62px;
}

.support-intro-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.support-intro-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 20px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 9px;
}

.support-intro-icon svg {
  width: 20px;
  height: 20px;
}

.support-intro-card h2 {
  margin: 0 0 14px;
  font-size: 20px;
  letter-spacing: 0;
}

.support-intro-card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
}

.support-heading {
  margin: 0 auto 26px;
  text-align: center;
}

.support-heading h2 {
  margin: 0;
  font-size: 32px;
  letter-spacing: 0;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--blue);
  font-size: 22px;
  line-height: 1;
  margin-left: 14px;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding-top: 14px;
}

.contact-panel {
  margin-top: 38px;
  padding: 30px;
  background: #ffffff;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.contact-copy h2 {
  margin: 0 0 8px;
  font-size: 24px;
  letter-spacing: 0;
}

.contact-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.contact-email {
  margin-top: 20px;
  white-space: normal;
  word-break: break-all;
}

.contact-panel .notice-box {
  text-align: left;
}

.error-section {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 64px);
  padding: 60px 24px 96px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  text-align: center;
}

.error-shell {
  max-width: 560px;
}

.error-code {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: 84px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0;
}

.error-shell h1 {
  margin: 0;
  font-size: 38px;
  letter-spacing: 0;
}

.error-text {
  margin: 18px 0 30px;
  color: var(--muted);
  font-size: 18px;
}

@keyframes blink {
  0%,
  49% {
    opacity: 1;
  }

  50%,
  100% {
    opacity: 0;
  }
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .nav-shell {
    padding: 0 16px;
    gap: 12px;
  }

  .brand-sub {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px 16px 16px;
    background: rgba(251, 251, 253, 0.98);
    border-bottom: 1px solid var(--line-soft);
    box-shadow: var(--shadow-soft);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 13px 8px;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-links a:last-child {
    border-bottom: 0;
  }

  .nav-install {
    padding: 0 12px;
  }

  .nav-install svg {
    display: none;
  }

  .hero {
    padding: 72px 16px 46px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-subtitle {
    margin-top: 20px;
    font-size: 20px;
  }

  .product-preview-section {
    padding: 0 16px 64px;
  }

  .preview-body {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .preview-sidebar {
    display: none;
  }

  .preview-main {
    padding: 16px;
  }

  .snippet-preview {
    max-width: 250px;
  }

  .content-section {
    padding: 64px 16px;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .section-heading h2,
  .page-hero h1 {
    font-size: 32px;
  }

  .section-description {
    font-size: 16px;
  }

  .feature-grid,
  .support-intro-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
  }

  .demo-stage {
    grid-template-columns: 1fr;
  }

  .demo-editor,
  .demo-output {
    padding: 18px;
  }

  .steps-list,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-hero {
    padding: 64px 16px 40px;
  }

  .page-lead {
    font-size: 16px;
  }

  .legal-section,
  .support-section {
    padding: 0 16px 64px;
  }

  .legal-content {
    padding: 26px 20px;
  }

  .legal-block h2 {
    font-size: 20px;
  }

  .support-intro-card,
  .faq-item,
  .contact-panel {
    padding: 20px;
  }

  .error-code {
    font-size: 68px;
  }

  .error-shell h1 {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}