:root {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #202124;
  background: #fff;
  font-synthesis: none;
  --muted: #63656b;
  --line: #e7e7e9;
  --accent: #584cff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, dd { margin: 0; }
a, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { background: #e4e1ff; }
.shell { width: min(1120px, calc(100% - 80px)); margin-inline: auto; }
.header { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { font-size: 1.625rem; line-height: 1; font-weight: 680; letter-spacing: -.07em; }
.header nav, .footer nav { display: flex; align-items: center; flex-wrap: wrap; gap: 28px; }
.header nav { font-size: .875rem; color: #55575d; }
.header nav a, .footer nav a { min-height: 44px; display: inline-flex; align-items: center; }
.header nav a:hover, .footer nav a:hover { color: #111; text-decoration: underline; text-underline-offset: 5px; }
.header nav [aria-current] { color: #202124; }
.language { margin-left: 10px; }
h1 { font-size: 3.75rem; font-weight: 600; letter-spacing: -.045em; line-height: 1.15; }
h2 { font-size: 1.125rem; font-weight: 550; line-height: 1.7; }
.home-intro { border-top: 1px solid var(--line); padding: 64px 0 70px; }
.home-intro h1 { font-size: 2.5rem; letter-spacing: -.035em; }
.home-intro p { color: var(--muted); font-size: 1.25rem; line-height: 1.8; margin-top: 18px; }
.product-directory { border-top: 1px solid var(--line); padding: 32px 0 58px; }
.product-list { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 36px; }
.product-summary-card { min-width: 0; }
.product-heading { display: inline-flex; align-items: center; gap: 12px; min-height: 52px; }
.product-heading > img { width: 40px; height: 40px; }
.product-heading h3 { font-size: 2rem; font-weight: 600; letter-spacing: -.025em; line-height: 1.2; }
.product-category { font-size: 1.0625rem; line-height: 1.7; margin-top: 20px; }
.summary-text { max-width: 430px; font-size: 1rem; line-height: 1.8; color: var(--muted); margin-top: 8px; }
.product-summary-card > .text-link { margin-top: 20px; }
.pudding-wordmark { position: relative; display: inline-block; padding-left: .94em; letter-spacing: -.025em; }
.pudding-wordmark img { position: absolute; top: 50%; left: -.16em; width: 1.2em; height: 1.2em; max-width: none; transform: translateY(-50%); }
.breadcrumb { display: flex; gap: 12px; font-size: .8125rem; color: var(--muted); padding: 24px 0 0; border-top: 1px solid var(--line); }
.breadcrumb a:hover { text-decoration: underline; }
.product-intro { padding: 54px 0 60px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.product-name { display: flex; align-items: center; gap: 16px; }
.product-name > img { width: 56px; height: 56px; flex: none; }
.subtitle { margin-top: 22px; font-size: 1.4375rem; line-height: 1.5; letter-spacing: -.02em; }
.intro { color: var(--muted); font-size: 1.125rem; line-height: 1.85; }
.download-links { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; margin-top: 25px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 20px; background: #252629; border: 1px solid #252629; border-radius: 6px; color: #fff; font-size: .9375rem; line-height: 1.5; font-weight: 500; }
.button:hover { background: #45464b; border-color: #45464b; }
.text-link { display: inline-block; font-size: .875rem; line-height: 1.8; text-decoration: underline; text-decoration-color: #aaa; text-underline-offset: 4px; }
.text-link:hover { text-decoration-color: currentColor; }
.platform { color: var(--muted); font-size: .8125rem; line-height: 1.7; margin-top: 13px; }
.detail-section, .about-section { display: grid; grid-template-columns: 1fr 2fr; gap: 56px; border-top: 1px solid var(--line); padding: 44px 0; }
.detail-section > * { min-width: 0; }
.product-facts { margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px 40px; }
.product-facts dt, .setup-steps h3 { font-size: 1rem; font-weight: 550; line-height: 1.7; margin-bottom: 8px; }
.product-facts dd, .setup-steps p { color: var(--muted); font-size: .9375rem; line-height: 1.8; }
.protocol-table { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: .8125rem; line-height: 1.7; }
th, td { border-bottom: 1px solid var(--line); padding: 12px 12px 12px 0; }
th { font-weight: 500; }
thead th { color: var(--muted); padding-top: 0; }
td code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .75rem; overflow-wrap: anywhere; }
.section-note { margin-top: 20px; color: var(--muted); font-size: .8125rem; line-height: 1.85; }
.setup-steps { margin: 0; padding-left: 23px; }
.setup-steps li { padding-left: 9px; }
.setup-steps li + li { margin-top: 24px; }
.setup-steps li::marker { color: var(--muted); font-size: .875rem; }
.questions details + details { border-top: 1px solid var(--line); }
.questions summary { padding: 18px 25px 18px 0; cursor: pointer; font-size: 1rem; line-height: 1.65; }
.questions details:first-child summary { padding-top: 0; }
.questions summary::marker { color: #92949a; font-size: .75rem; }
.questions p { color: var(--muted); font-size: .9375rem; line-height: 1.85; padding: 0 24px 20px 0; }
.about-content > p { max-width: 580px; color: var(--muted); font-size: 1rem; line-height: 1.85; }
.about-links, .resource-links { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 30px; margin-top: 20px; }
.footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-block: 23px; color: var(--muted); font-size: .8125rem; }
.footer nav { gap: 22px; }
.skip { position: absolute; top: 10px; left: 20px; transform: translateY(-180%); padding: 14px; background: white; z-index: 5; }
.skip:focus { transform: none; }
.not-found { padding-block: 50px; }
.not-found h1 { margin-top: 100px; font-size: 2.5rem; }
.not-found p { color: var(--muted); margin-top: 16px; }
.not-found .button { margin-top: 30px; }
@media (max-width: 900px) {
  .product-intro, .detail-section, .about-section { gap: 36px; }
  h1 { font-size: 3.25rem; }
  .product-name > img { width: 48px; height: 48px; }
  .subtitle { font-size: 1.25rem; }
  .intro { font-size: 1rem; }
  .product-facts { grid-template-columns: 1fr; gap: 25px; }
  .product-list { gap: 40px; }
}
@media (max-width: 680px) {
  .shell { width: calc(100% - 40px); }
  .header { min-height: 80px; gap: 12px; }
  .wordmark { font-size: 1.375rem; }
  .header nav { gap: 14px; font-size: .8125rem; }
  .language { margin: 0; }
  .home-intro { padding: 38px 0 42px; }
  .home-intro h1 { font-size: 2rem; }
  .home-intro p { font-size: 1.0625rem; }
  .product-directory { padding: 28px 0 36px; }
  .product-list { grid-template-columns: 1fr; gap: 30px; margin-top: 24px; }
  .product-summary-card + .product-summary-card { border-top: 1px solid var(--line); padding-top: 30px; }
  .product-category { margin-top: 14px; }
  .product-intro { grid-template-columns: 1fr; gap: 22px; padding: 38px 0 34px; }
  h1 { font-size: 3rem; }
  .product-name > img { width: 44px; height: 44px; }
  .subtitle { margin-top: 14px; font-size: 1.25rem; }
  .download-links { margin-top: 22px; gap: 22px; }
  .product-facts dt { margin-bottom: 5px; }
  .detail-section, .about-section { grid-template-columns: 1fr; gap: 24px; padding-block: 32px; }
  .about-links { gap: 14px 24px; }
  .footer { align-items: flex-start; flex-direction: column; gap: 6px; }
  .footer nav { gap: 19px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }