:root {
  color-scheme: light;
  --paper: #f7f3ea;
  --paper-deep: #efe9dc;
  --surface: rgba(255, 253, 248, 0.88);
  --ink: #172033;
  --muted: #626b78;
  --line: #d8d1c3;
  --blue: #2f67d8;
  --blue-soft: #e7eefc;
  --green: #147a64;
  --green-soft: #e2f2ec;
  --violet: #7357b6;
  --violet-soft: #eee8f8;
  --orange: #c7652b;
  --shadow: 0 22px 60px rgba(35, 42, 54, 0.11);
  --radius: 24px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(35, 42, 54, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 42, 54, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--sans);
  font-kerning: normal;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(47, 103, 216, 0.42);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 50;
  padding: 10px 14px;
  border-radius: 10px;
  color: #fff;
  background: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(216, 209, 195, 0.84);
  background: rgba(247, 243, 234, 0.88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.nav,
.section,
.site-footer {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  font-size: 1rem;
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(23, 32, 51, 0.16);
}

.nav-links,
.language-switcher {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a,
.language-switcher a {
  min-height: 44px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 640;
  text-decoration: none;
}

.nav-links a {
  min-width: 44px;
  justify-content: center;
}

.nav-links a,
.language-switcher a {
  display: inline-flex;
  align-items: center;
}

.language-switcher a {
  min-width: 44px;
  justify-content: center;
}

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

.language-switcher {
  gap: 8px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.language-switcher a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--green);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.section {
  padding-block: 112px;
}

.hero {
  min-height: calc(100svh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 0.86fr);
  align-items: center;
  gap: clamp(44px, 7vw, 92px);
  padding-block: 84px 96px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 22px;
  height: 2px;
  background: currentColor;
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 750px;
  margin-bottom: 24px;
  font-size: clamp(3.1rem, 6.4vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
  text-wrap: balance;
}

[lang="zh-CN"] h1 {
  font-size: clamp(2.8rem, 4.8vw, 4.65rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero-lede {
  max-width: 710px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: clamp(1.06rem, 1.6vw, 1.26rem);
}

.hero-lede strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-weight: 720;
}

[lang="zh-CN"] h1,
[lang="zh-CN"] h2,
[lang="zh-CN"] h3,
[lang="zh-CN"] p,
[lang="zh-CN"] summary,
[lang="zh-CN"] li {
  line-break: strict;
  word-break: auto-phrase;
}

[lang="zh-CN"] p,
[lang="zh-CN"] li {
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  border-radius: 12px;
  font-weight: 720;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--ink);
  box-shadow: 5px 5px 0 var(--green);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 253, 248, 0.68);
}

.hero-note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.hero-note code {
  color: var(--ink);
  font-family: var(--mono);
}

.hero-visual {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 30px 14px 28px 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transform: rotate(1.2deg);
}

.hero-visual::before,
.hero-visual::after {
  position: absolute;
  z-index: 2;
  width: 82px;
  height: 24px;
  background: rgba(223, 205, 142, 0.5);
  content: "";
}

.hero-visual::before {
  top: -10px;
  left: 18%;
  transform: rotate(-4deg);
}

.hero-visual::after {
  right: 12%;
  bottom: -9px;
  transform: rotate(3deg);
}

.hero-visual img {
  width: 100%;
  border-radius: 18px 8px 16px 10px;
}

.hero-visual figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.section-rule {
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 52px;
}

.section-heading h2 {
  margin-bottom: 16px;
  font-size: clamp(2.1rem, 3.8vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.section-heading p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

[lang="zh-CN"] .section-heading {
  max-width: 940px;
}

[lang="zh-CN"] .section-heading h2,
[lang="zh-CN"] .resume-copy h2 {
  font-size: clamp(2rem, 3.5vw, 3.65rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.keep-together {
  white-space: nowrap;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  min-height: 250px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.card::after {
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--accent-soft, var(--blue-soft));
  content: "";
}

.card:nth-child(2) {
  --accent-soft: var(--green-soft);
}

.card:nth-child(3) {
  --accent-soft: var(--violet-soft);
}

.card-index {
  display: block;
  margin-bottom: 54px;
  color: var(--accent, var(--blue));
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.card:nth-child(2) .card-index {
  color: var(--green);
}

.card:nth-child(3) .card-index {
  color: var(--violet);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 34px;
}

.step {
  position: relative;
  min-height: 180px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.68);
}

.step:not(:last-child)::after {
  position: absolute;
  top: 28px;
  right: -9px;
  z-index: 2;
  width: 16px;
  color: var(--orange);
  background: var(--paper);
  font-family: var(--mono);
  font-weight: 800;
  text-align: center;
  content: "→";
}

.step-number {
  display: block;
  margin-bottom: 28px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.step h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.91rem;
}

.diagram-frame {
  padding: clamp(12px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 42px rgba(35, 42, 54, 0.08);
}

.diagram-frame img {
  width: 100%;
}

.architecture-preview {
  display: block;
  color: var(--ink);
  text-decoration: none;
}

.preview-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  margin: 12px 4px 0;
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 720;
}

.resume-layout {
  display: grid;
  grid-template-columns: minmax(290px, 0.72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: clamp(40px, 7vw, 84px);
}

.resume-copy h2 {
  margin-bottom: 18px;
  font-size: clamp(2.1rem, 3.2vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.resume-copy > p {
  color: var(--muted);
}

.repo-path {
  display: inline-flex;
  margin: 8px 0 22px;
  padding: 8px 12px;
  border: 1px solid rgba(47, 103, 216, 0.24);
  border-radius: 9px;
  color: var(--blue);
  background: var(--blue-soft);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.host-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.host-list li {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.74);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.host-list .baseline {
  color: var(--muted);
  border-style: dashed;
}

.install-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: 22px;
  align-items: stretch;
}

.terminal {
  position: relative;
  min-width: 0;
  padding: 20px;
  border-radius: var(--radius);
  color: #e8edf8;
  background: #172033;
  box-shadow: var(--shadow);
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.terminal-dots {
  display: inline-flex;
  gap: 6px;
}

.terminal-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #e98a65;
}

.terminal-dots span:nth-child(2) {
  background: #e6bc5c;
}

.terminal-dots span:nth-child(3) {
  background: #62b78d;
}

.copy-button {
  min-height: 44px;
  min-width: 72px;
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  font: 650 0.76rem var(--sans);
  cursor: pointer;
}

.copy-button:hover {
  background: rgba(255, 255, 255, 0.15);
}

.command {
  display: block;
  overflow-x: auto;
  color: #d9e4ff;
  font: 0.9rem/1.75 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.prompt {
  color: #6bd3aa;
}

.install-note {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.install-note h3 {
  margin-bottom: 12px;
}

.install-note ul {
  margin: 0 0 20px;
  padding-left: 20px;
  color: var(--muted);
}

.install-trust {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 0.92rem;
}

.install-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.install-links .text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.text-link {
  color: var(--blue);
  font-weight: 700;
  text-underline-offset: 4px;
}

.companion {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  padding: 22px 24px;
  border: 1px dashed rgba(115, 87, 182, 0.55);
  border-radius: 18px;
  background: rgba(238, 232, 248, 0.5);
}

.companion-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: var(--violet);
  background: var(--violet-soft);
  font-family: var(--mono);
  font-weight: 800;
}

.companion h3,
.companion p {
  margin: 0;
}

.companion p {
  color: var(--muted);
  font-size: 0.92rem;
}

.companion .text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.faq-list {
  max-width: 880px;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 24px 42px 24px 0;
  font-weight: 730;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 22px;
  right: 8px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 1.2rem;
  content: "+";
}

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

.faq-list details p {
  max-width: 720px;
  padding: 0 0 24px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  text-underline-offset: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 1080px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .step:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero,
  .resume-layout,
  .install-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 72px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    width: min(650px, 92%);
    margin-inline: auto;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: 210px;
  }

  .card-index {
    margin-bottom: 32px;
  }

}

@media (max-width: 620px) {
  .nav,
  .section,
  .site-footer {
    width: min(100% - 28px, 1160px);
  }

  .nav {
    min-height: 64px;
    gap: 12px;
  }

  .brand span {
    display: none;
  }

  .language-switcher {
    padding-left: 12px;
  }

  .section {
    padding-block: 78px;
  }

  .hero {
    padding-block: 60px 72px;
  }

  h1 {
    font-size: clamp(2.75rem, 14vw, 4.15rem);
  }

  [lang="zh-CN"] h1 {
    font-size: clamp(2.55rem, 12vw, 3.5rem);
  }

  .keep-together {
    white-space: normal;
  }

  [lang="zh-CN"] .section-heading h2,
  [lang="zh-CN"] .resume-copy h2 {
    font-size: clamp(2rem, 8.8vw, 2.6rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    width: 100%;
    padding: 10px;
    border-radius: 20px 10px;
    transform: none;
  }

  .section-heading {
    margin-bottom: 34px;
  }

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

  .step:not(:last-child)::after {
    top: auto;
    right: 22px;
    bottom: -13px;
    transform: rotate(90deg);
  }

  .step:nth-child(2)::after {
    display: block;
  }

  .terminal {
    padding: 16px;
  }

  .command {
    font-size: 0.8rem;
  }

  .companion {
    grid-template-columns: auto 1fr;
  }

  .companion .text-link {
    grid-column: 1 / -1;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}