/* The release page uses the same macOS landing composition as /macos. */
.macos-page {
  --mac-bg: #f7f7f8;
  --mac-bg-soft: #f0f0f1;
  --mac-surface: #ffffff;
  --mac-ink: #202123;
  --mac-muted: #6e6e73;
  --mac-faint: #9b9b9f;
  --mac-line: rgba(32, 33, 35, 0.11);
  --mac-blue: #345b96;
  --mac-blue-bright: #4e7dbd;
  --mac-window: #f7f8fb;
  --mac-window-side: #eceff4;
  --mac-shadow: 0 24px 65px rgba(32, 33, 35, 0.1), 0 3px 12px rgba(32, 33, 35, 0.05);
  min-height: 100vh;
  overflow: hidden;
  background: var(--mac-bg);
  color: var(--mac-ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .macos-page {
    --mac-bg: #111722;
    --mac-bg-soft: #182131;
    --mac-surface: #192231;
    --mac-ink: #eff3f7;
    --mac-muted: #adb7c4;
    --mac-faint: #7d8997;
    --mac-line: rgba(239, 243, 247, 0.14);
    --mac-blue: #94b5df;
    --mac-blue-bright: #78a4d7;
    --mac-window: #202a38;
    --mac-window-side: #182130;
    --mac-shadow: 0 35px 90px rgba(0, 0, 0, 0.36), 0 5px 18px rgba(0, 0, 0, 0.22);
  }
}

.macos-page *,
.macos-page *::before,
.macos-page *::after { box-sizing: border-box; }

.macos-page a { color: inherit; text-decoration: none; }
.macos-page button,
.macos-page select { font: inherit; }
.macos-page button { cursor: pointer; }
.macos-page img,
.macos-page svg { display: block; }
.macos-page svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.macos-local-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 66px;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--mac-line);
  background: color-mix(in srgb, var(--mac-bg) 84%, transparent);
  backdrop-filter: saturate(150%) blur(18px);
  -webkit-backdrop-filter: saturate(150%) blur(18px);
}

.macos-local-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.macos-local-brand img { width: 28px; height: 28px; border-radius: 7px; object-fit: cover; }
.macos-local-brand em { color: var(--mac-muted); font-style: normal; font-weight: 500; }

.macos-local-nav-actions { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); color: var(--mac-muted); font-size: 0.78rem; }
.macos-local-nav-actions > a { transition: color 160ms ease; }
.macos-local-nav-actions > a:hover { color: var(--mac-ink); }

.macos-language-picker {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 8px;
  border: 1px solid var(--mac-line);
  border-radius: 999px;
  color: var(--mac-ink);
  background: color-mix(in srgb, var(--mac-surface) 65%, transparent);
}

.macos-language-picker select {
  max-width: 94px;
  border: 0;
  outline: 0;
  color: inherit;
  background: transparent;
  font-size: 0.76rem;
  cursor: pointer;
}

.macos-globe { color: var(--mac-blue); font-size: 0.9rem; line-height: 1; }
.macos-page .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; }

.macos-page .macos-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: block;
  min-height: 0;
  padding: 0;
  background: var(--mac-bg);
  animation: none;
}

.macos-hero-inner {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 3.2vw, 56px);
  width: 100%;
  min-height: clamp(620px, calc(100svh - 66px), 960px);
  margin: 0;
  padding: clamp(56px, 7vw, 112px) clamp(24px, 5vw, 96px);
}

.macos-hero-copy { position: relative; z-index: 2; width: 100%; max-width: 340px; animation: macos-rise 720ms cubic-bezier(0.16, 1, 0.3, 1) both; }
.macos-eyebrow { margin: 0 0 20px; color: var(--mac-blue); font-size: 0.69rem; font-weight: 800; letter-spacing: 0.15em; line-height: 1; }
.macos-hero h1 { max-width: none; margin: 0 0 22px; color: var(--mac-ink); font-size: clamp(2.25rem, 3vw, 3rem); font-weight: 650; letter-spacing: -0.075em; line-height: 1.02; }
.macos-hero-copy[data-locale="zh-Hans"] h1,
.macos-hero-copy[data-locale="zh-Hant"] h1 { text-wrap: balance; }
.macos-hero-description { max-width: 22ch; margin: 0; color: var(--mac-muted); font-size: clamp(1rem, 1.15vw, 1.08rem); line-height: 1.7; }

.macos-value-statements { display: grid; gap: 2px; margin-top: 27px; color: var(--mac-ink); font-size: clamp(1rem, 1.15vw, 1.08rem); font-weight: 560; letter-spacing: -0.025em; line-height: 1.6; }

.macos-hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 34px; }
.macos-primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 17px;
  border-radius: 9px;
  font-size: 0.83rem;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.macos-page a.macos-primary-button { color: #fff; background: var(--mac-ink); box-shadow: 0 8px 20px color-mix(in srgb, var(--mac-ink) 18%, transparent); }
.macos-page a.macos-primary-button:hover { transform: translateY(-2px); background: var(--mac-blue); box-shadow: 0 12px 24px color-mix(in srgb, var(--mac-blue) 28%, transparent); }
.macos-primary-button svg { width: 17px; height: 17px; fill: currentColor; stroke: none; }
.macos-arrow { font-size: 1rem; font-weight: 500; line-height: 1; }

.macos-platform-note { display: flex; align-items: center; gap: 8px; margin: 23px 0 0; color: var(--mac-muted); font-size: 0.72rem; }
.macos-status-dot { width: 6px; height: 6px; border-radius: 50%; background: #43b87c; box-shadow: 0 0 0 4px color-mix(in srgb, #43b87c 13%, transparent); }

.macos-membership-note { max-width: 340px; margin-top: 24px; padding-left: 14px; border-left: 2px solid var(--mac-blue); font-size: 0.76rem; line-height: 1.75; }
.macos-membership-note p { margin: 0 0 3px; font-weight: 650; }
.macos-membership-note > span { display: block; color: var(--mac-muted); }
.macos-page .macos-membership-note a,
.macos-page .macos-inline-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 7px; color: var(--mac-blue); font-size: 0.76rem; font-weight: 600; }
.macos-page .macos-membership-note a:hover,
.macos-page .macos-inline-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.macos-getting-started { width: min(1180px, calc(100% - 56px)); margin: 0 auto; padding: 65px 0 0; scroll-margin-top: 100px; }
.macos-start-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 60px; }
.macos-start-heading .macos-eyebrow { margin-bottom: 16px; }
.macos-start-heading h2 { margin: 0; font-size: clamp(1.6rem, 2.6vw, 2.2rem); font-weight: 600; letter-spacing: -0.045em; line-height: 1.35; text-wrap: balance; }
.macos-start-intro { max-width: 56ch; margin: 0; color: var(--mac-muted); font-size: 0.88rem; line-height: 1.9; }
.macos-start-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; margin: 38px 0 36px; padding: 30px 0; border-top: 1px solid var(--mac-line); border-bottom: 1px solid var(--mac-line); list-style: none; }
.macos-start-steps li { min-width: 0; }
.macos-step-number { display: block; margin-bottom: 20px; color: var(--mac-blue); font-family: "SF Mono", ui-monospace, Menlo, monospace; font-size: 0.73rem; letter-spacing: 0.04em; }
.macos-start-steps h3 { margin: 0 0 10px; font-size: 1rem; font-weight: 600; letter-spacing: -0.025em; }
.macos-start-steps p { max-width: 33ch; margin: 0; color: var(--mac-muted); font-size: 0.83rem; line-height: 1.9; }
.macos-start-faq { max-width: 820px; }
.macos-start-faq details { border-bottom: 1px solid var(--mac-line); }
.macos-start-faq summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 64px; padding: 14px 0; list-style: none; cursor: pointer; font-size: 0.86rem; font-weight: 550; }
.macos-start-faq summary::-webkit-details-marker { display: none; }
.macos-faq-indicator { flex: none; color: var(--mac-muted); font-size: 1.25rem; font-weight: 400; transition: transform 180ms ease, color 180ms ease; }
.macos-start-faq summary:hover .macos-faq-indicator { color: var(--mac-blue); }
.macos-start-faq details[open] .macos-faq-indicator { transform: rotate(45deg); }
.macos-start-faq details > p { max-width: 75ch; margin: 0; padding: 0 34px 22px 0; color: var(--mac-muted); font-size: 0.83rem; line-height: 1.9; }
.macos-start-faq details[open] > p { animation: macos-screenshot-fade 180ms ease both; }
.macos-page a:focus-visible,
.macos-start-faq summary:focus-visible { outline: 2px solid var(--mac-blue); outline-offset: 5px; border-radius: 2px; }

.macos-hero-visual { position: relative; display: flex; align-items: center; justify-content: center; min-width: 0; padding: 0; animation: macos-visual-in 900ms 120ms cubic-bezier(0.16, 1, 0.3, 1) both; }

.macos-window-object {
  width: min(100%, 1320px, calc((100svh - 210px) * 1.58));
  min-width: 0;
  max-width: 100%;
  margin: 0 auto;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform-origin: right center;
  transform: perspective(1800px) rotateY(-1.3deg) rotateX(0.5deg);
  animation: macos-window-float 9s ease-in-out infinite;
}

.macos-window-object:hover { animation-play-state: running; transform: perspective(1800px) rotateY(0) rotateX(0); box-shadow: none; }
.macos-real-screenshot-frame { overflow: hidden; border: 1px solid color-mix(in srgb, var(--mac-ink) 15%, transparent); border-radius: 24px; background: #fff; box-shadow: 0 36px 86px rgba(32, 33, 35, 0.14), 0 8px 22px rgba(32, 33, 35, 0.07); transition: transform 420ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 420ms ease; }
.macos-real-screenshot-frame:hover { transform: translateY(-2px); box-shadow: 0 42px 100px rgba(32, 33, 35, 0.17), 0 8px 22px rgba(32, 33, 35, 0.08); }
.macos-real-screenshot-image { display: block; width: 100%; height: auto; aspect-ratio: 1.6; object-fit: contain; object-position: top center; animation: macos-screenshot-fade 300ms ease both; }

.macos-screenshot-controls { display: flex; align-items: center; justify-content: center; gap: 8px; padding-top: 14px; }
.macos-screenshot-dots { display: flex; align-items: center; justify-content: center; gap: 8px; }
.macos-screenshot-dots button { display: grid; place-items: center; width: 20px; height: 20px; padding: 0; border: 0; border-radius: 50%; background: transparent; cursor: pointer; }
.macos-screenshot-dots button:focus-visible { outline: 2px solid var(--mac-blue); outline-offset: 2px; }
.macos-screenshot-dots button span { display: block; width: 7px; height: 7px; border-radius: 50%; background: color-mix(in srgb, var(--mac-muted) 38%, transparent); transition: width 180ms ease, height 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.macos-screenshot-dots button:hover span { background: color-mix(in srgb, var(--mac-blue) 68%, var(--mac-muted)); }
.macos-screenshot-dots button.is-active span { width: 9px; height: 9px; background: var(--mac-blue); box-shadow: 0 0 0 4px color-mix(in srgb, var(--mac-blue) 15%, transparent); }
.macos-screenshot-toggle { display: grid; place-items: center; width: 24px; height: 24px; padding: 0; border: 1px solid color-mix(in srgb, var(--mac-muted) 24%, transparent); border-radius: 50%; color: var(--mac-muted); background: color-mix(in srgb, var(--mac-bg) 80%, transparent); cursor: pointer; font-size: 0.6rem; line-height: 1; opacity: 0.72; transition: border-color 180ms ease, color 180ms ease, background 180ms ease, opacity 180ms ease, transform 180ms ease; }
.macos-screenshot-toggle:hover, .macos-screenshot-toggle:focus-visible { border-color: color-mix(in srgb, var(--mac-blue) 52%, transparent); color: var(--mac-blue); opacity: 1; transform: translateY(-1px); }
.macos-screenshot-toggle:focus-visible { outline: 2px solid var(--mac-blue); outline-offset: 2px; }
.macos-screenshot-toggle.is-paused { border-color: color-mix(in srgb, var(--mac-blue) 40%, transparent); color: var(--mac-blue); background: color-mix(in srgb, var(--mac-blue) 10%, var(--mac-bg)); opacity: 1; }

.macos-page .archive-section { width: min(1180px, calc(100% - 56px)); margin: 0 auto; padding-top: clamp(92px, 13vw, 170px); }
#releases { scroll-margin-top: 90px; }
.macos-landing-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 23px clamp(22px, 5vw, 80px); border-top: 1px solid var(--mac-line); color: var(--mac-faint); font-size: 0.7rem; }
.macos-landing-footer > div { display: flex; gap: 20px; }
.macos-landing-footer a:hover { color: var(--mac-ink); }

@keyframes macos-rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
@keyframes macos-visual-in { from { opacity: 0; transform: translateY(28px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes macos-window-float { 0%, 100% { transform: perspective(1800px) rotateY(-1.3deg) rotateX(0.5deg) translateY(0); } 50% { transform: perspective(1800px) rotateY(-1.3deg) rotateX(0.5deg) translateY(-8px); } }
@keyframes macos-screenshot-fade { from { opacity: 0.55; } to { opacity: 1; } }

@media (max-width: 1080px) {
  .macos-hero-inner { grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr); gap: 28px; padding-right: 28px; padding-left: 28px; }
}

@media (min-width: 821px) {
  .macos-window-object { margin-left: clamp(-48px, -2.8vw, -24px); margin-right: auto; }
}

@media (max-width: 820px) {
  .macos-local-nav { min-height: 58px; }
  .macos-local-nav-actions > a { display: none; }
  .macos-hero-inner { display: block; min-height: auto; padding-top: 76px; }
  .macos-hero-copy { max-width: 630px; }
  .macos-hero h1 { max-width: none; }
  .macos-hero-visual { margin-top: 58px; }
  .macos-page .archive-section { width: min(100% - 40px, 620px); }
  .macos-getting-started { width: min(100% - 40px, 620px); padding-top: 16px; }
  .macos-start-heading { grid-template-columns: 1fr; gap: 20px; }
  .macos-start-steps { gap: 24px; }
}

@media (max-width: 570px) {
  .macos-local-brand em { display: none; }
  .macos-local-nav { padding-right: 16px; padding-left: 16px; }
  .macos-language-picker { padding: 4px 7px; }
  .macos-language-picker select { max-width: 65px; }
  .macos-hero-inner { padding: 55px 16px 72px; }
  .macos-hero h1 { font-size: clamp(2.25rem, 10vw, 3.5rem); }
  .macos-hero-description { font-size: 0.96rem; }
  .macos-hero-actions { align-items: stretch; flex-direction: column; }
  .macos-primary-button { width: 100%; }
  .macos-hero-visual { margin-top: 50px; }
  .macos-window-object { width: 100%; max-width: none; transform: none; animation: macos-window-float-mobile 9s ease-in-out infinite; }
  .macos-window-object:hover { transform: none; }
  .macos-real-screenshot-frame { border-radius: 16px; transform: none; }
  .macos-real-screenshot-frame:hover { transform: none; }
  .macos-getting-started { width: calc(100% - 32px); }
  .macos-start-steps { grid-template-columns: 1fr; gap: 0; margin-top: 28px; padding: 0; }
  .macos-start-steps li { position: relative; padding: 24px 0 24px 42px; }
  .macos-start-steps li + li { border-top: 1px solid var(--mac-line); }
  .macos-step-number { position: absolute; top: 27px; left: 0; margin: 0; }
  .macos-start-steps p { max-width: none; }
  .macos-landing-footer { align-items: flex-start; flex-direction: column; padding-right: 16px; padding-left: 16px; }
}

@keyframes macos-window-float-mobile { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

@media (prefers-reduced-motion: reduce) {
  .macos-page *,
  .macos-page *::before,
  .macos-page *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}