/* ============================================================
   Adro Download Page — standalone static site
   Claude Warm theme (matches sub2api home page styling tokens)
   ============================================================ */

:root {
  --claude-bg: #fcfbf7;
  --claude-bg-soft: #f6f3ec;
  --claude-surface: #ffffff;
  --claude-text: #141413;
  --claude-muted: #6f6c63;
  --claude-mid: #b0aea5;
  --claude-border: #e8e6dc;
  --claude-border-soft: #efece4;
  --claude-accent: #967bda;
  --claude-accent-soft: #efe9fb;
  --claude-coral: #d87756;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  /* Smooth scroll for anchor links (e.g. nav "更新日志" → #latest) */
  scroll-behavior: smooth;
  /* Anchor offset so sticky nav doesn't cover heading */
  scroll-padding-top: 96px;
}

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

body {
  background: var(--claude-bg);
  color: var(--claude-text);
  font-family: 'Segoe UI', 'Microsoft YaHei UI', 'Microsoft YaHei', Tahoma, Geneva, Verdana, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.adro-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Nav ---------- */
.adro-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(252, 251, 247, 0.95);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid rgba(232, 230, 220, 0.6);
}
.adro-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1280px, calc(100% - 48px));
  min-height: 84px;
  margin: 0 auto;
}
.adro-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.adro-nav-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 147px;
  height: 60px;
}
.adro-nav-brand-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.adro-nav-brand-divider {
  width: 1px;
  height: 22px;
  background: var(--claude-border);
}
.adro-nav-wordmark {
  font-family: 'Times New Roman', SimSun, serif;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--claude-text);
  line-height: 1;
}
.adro-nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.adro-nav-link {
  position: relative;
  color: #3c392f;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px 0;
  transition: color 0.2s ease;
}
.adro-nav-link:hover {
  color: var(--claude-text);
}
.adro-nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--claude-accent);
  opacity: 0;
  transform: scaleX(0.5);
  transform-origin: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.adro-nav-link:hover::after {
  opacity: 0.45;
  transform: scaleX(1);
}
.adro-nav-link-muted {
  color: var(--claude-muted);
  font-weight: 400;
}

/* Lang toggle */
.adro-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  color: var(--claude-muted);
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.adro-lang-toggle:hover {
  border-color: var(--claude-accent);
  color: var(--claude-accent);
  transform: translateY(-1px);
}
.adro-lang-toggle-current {
  color: var(--claude-text);
}
[lang='en'] .adro-lang-toggle-current { content: 'EN'; }
.adro-lang-toggle-sep {
  opacity: 0.35;
}

/* ---------- Main ---------- */
.adro-main {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 88px;
  flex: 1;
}

/* ---------- Hero ---------- */
.adro-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
  margin-bottom: 96px;
}
.adro-hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.adro-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--claude-accent-soft);
  color: var(--claude-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.adro-headline {
  margin: 0;
  font-family: 'Times New Roman', SimSun, serif;
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: #171615;
}
.adro-headline-accent {
  display: block;
  color: var(--claude-muted);
  margin-top: 8px;
  font-size: 0.78em;
  font-style: italic;
}
.adro-subheadline {
  margin: 0;
  max-width: 32em;
  color: var(--claude-muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* Mobile hint */
.adro-mobile-hint {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid #f4d9a2;
  background: #fff7e7;
  border-radius: 14px;
  color: #6e5114;
}
.adro-mobile-hint[hidden] {
  display: none;
}
.adro-mobile-hint svg {
  flex: none;
  width: 28px;
  height: 28px;
  color: #c08311;
}
.adro-mobile-hint strong {
  display: block;
  font-size: 0.98rem;
  color: #4a3608;
}
.adro-mobile-hint p {
  margin: 4px 0 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Loading */
.adro-loading {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  align-self: flex-start;
  border-radius: 12px;
  border: 1px solid var(--claude-border);
  background: var(--claude-bg-soft);
  color: var(--claude-muted);
  font-size: 0.92rem;
}
.adro-loading[hidden] {
  display: none;
}
.adro-spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--claude-border);
  border-top-color: var(--claude-accent);
  animation: adro-spin 0.8s linear infinite;
}
@keyframes adro-spin {
  to {
    transform: rotate(360deg);
  }
}

/* CDN failure */
.adro-degraded {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.adro-degraded[hidden] {
  display: none;
}
.adro-degraded-warn {
  display: flex;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid #f4c2a2;
  background: #fff1e7;
  border-radius: 12px;
  color: #6e3514;
}
.adro-degraded-warn svg {
  flex: none;
  width: 24px;
  height: 24px;
  color: #c05511;
}
.adro-degraded-warn strong {
  display: block;
  font-size: 0.96rem;
  color: #4a2308;
}
.adro-degraded-warn p {
  margin: 4px 0 0;
  font-size: 0.86rem;
  line-height: 1.5;
}

/* Primary CTA */
.adro-primary-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 4px;
}
.adro-primary-block[hidden] {
  display: none;
}
.adro-primary-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.adro-free-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: #e3f1e8;
  color: #2f7a48;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
}
.adro-primary-cta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  align-self: flex-start;
  padding: 18px 28px;
  border-radius: 18px;
  background: linear-gradient(135deg, #18171a 0%, #2a2630 100%);
  color: #fdfcf7;
  text-decoration: none;
  box-shadow: 0 18px 36px rgba(20, 20, 19, 0.18);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.adro-primary-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 44px rgba(20, 20, 19, 0.22);
}
.adro-primary-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: #fdfcf7;
}
.adro-primary-icon svg {
  width: 100%;
  height: 100%;
}
.adro-primary-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.adro-primary-line {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.adro-primary-sub {
  font-size: 0.84rem;
  color: rgba(253, 252, 247, 0.65);
}
.adro-primary-hint {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--claude-muted);
  font-size: 0.88rem;
}
.adro-os-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #6b9b3b;
  box-shadow: 0 0 0 4px rgba(107, 155, 59, 0.18);
}
.adro-toggle-arch {
  border: none;
  background: transparent;
  color: var(--claude-accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.adro-toggle-arch:hover {
  opacity: 0.8;
}

/* Unavailable */
.adro-unavailable {
  margin-top: 4px;
}
.adro-unavailable[hidden] {
  display: none;
}

/* Alternates */
.adro-alt-section {
  margin-top: 12px;
}
.adro-alt-section[hidden] {
  display: none;
}
.adro-alt-heading {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--claude-mid);
  margin-bottom: 10px;
}
.adro-alt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}
.adro-alt-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.adro-alt-card:hover {
  border-color: var(--claude-accent);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(150, 123, 218, 0.08);
}
.adro-alt-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--claude-text);
}
.adro-alt-icon svg {
  width: 100%;
  height: 100%;
}
.adro-alt-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.adro-alt-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--claude-text);
}
.adro-alt-file {
  font-size: 0.78rem;
  color: var(--claude-mid);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

/* Version meta */
.adro-version-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 0.86rem;
  color: var(--claude-muted);
}
.adro-version-meta[hidden] {
  display: none;
}
.adro-version-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--claude-bg-soft);
  border: 1px solid var(--claude-border);
  color: var(--claude-text);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 600;
}

/* ---------- Visual window mock ---------- */
.adro-hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3.4;
}
.adro-window {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  overflow: hidden;
  box-shadow:
    0 32px 64px rgba(20, 20, 19, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.adro-window-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--claude-bg-soft);
  border-bottom: 1px solid var(--claude-border-soft);
}
.adro-window-dot {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.adro-window-dot-red {
  background: #ed6a5e;
}
.adro-window-dot-yellow {
  background: #f4be4f;
}
.adro-window-dot-green {
  background: #61c554;
}
.adro-window-title {
  margin-left: 12px;
  font-size: 0.78rem;
  color: var(--claude-muted);
  letter-spacing: 0.04em;
}
.adro-window-body {
  flex: 1;
  display: grid;
  grid-template-columns: 160px 1fr;
}
.adro-window-side {
  border-right: 1px solid var(--claude-border-soft);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: #fbf9f3;
}
.adro-window-side-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--claude-muted);
  font-size: 0.82rem;
}
.adro-window-side-item.is-active {
  background: var(--claude-accent-soft);
  color: var(--claude-accent);
  font-weight: 600;
}
.adro-window-side-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.55;
}
.adro-window-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
}
.adro-bubble {
  padding: 12px 14px;
  border-radius: 14px;
  max-width: 85%;
  font-size: 0.85rem;
  line-height: 1.5;
}
.adro-bubble-user {
  align-self: flex-end;
  background: var(--claude-accent);
  color: #fdfcf7;
  border-bottom-right-radius: 4px;
}
.adro-bubble-ai {
  align-self: flex-start;
  background: var(--claude-bg-soft);
  border: 1px solid var(--claude-border-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 60%;
  border-bottom-left-radius: 4px;
}
.adro-bubble-line {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #d8d3c4, #e8e4d6);
  width: 100%;
}
.adro-window-input {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--claude-border);
  background: var(--claude-bg-soft);
  color: var(--claude-mid);
  font-size: 0.84rem;
}
.adro-window-send {
  color: var(--claude-muted);
}
.adro-window-kbd {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  color: var(--claude-muted);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 1px 0 var(--claude-border-soft);
}

/* ---------- Reveal-on-scroll animations ----------
   JS adds .is-revealed when section enters viewport.
   Respects prefers-reduced-motion: stay visible, no transform. */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  [data-reveal].is-revealed {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Section ---------- */
.adro-section {
  margin-bottom: 72px;
}
.adro-section:last-of-type {
  margin-bottom: 0;
}
.adro-section-head {
  text-align: center;
  margin-bottom: 32px;
}
.adro-section-head h2 {
  margin: 0;
  font-family: 'Times New Roman', SimSun, serif;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 400;
  color: #171615;
}
.adro-section-head p {
  margin: 12px auto 0;
  max-width: 36rem;
  color: var(--claude-muted);
  font-size: 0.96rem;
  line-height: 1.6;
}
.adro-section-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--claude-accent-soft);
  color: var(--claude-accent);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Hero eyebrow dot (small status indicator inside the existing .adro-eyebrow pill) */
.adro-eyebrow-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

/* ---------- Hero visual: model chips ---------- */
.adro-window-models {
  display: flex;
  gap: 6px;
  margin-bottom: 2px;
}
.adro-window-model-chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--claude-border-soft);
  background: var(--claude-surface);
  color: var(--claude-muted);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.adro-window-model-chip.is-on {
  background: var(--claude-accent-soft);
  border-color: transparent;
  color: var(--claude-accent);
}

/* ---------- Features ---------- */
.adro-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.adro-feature-card {
  padding: 32px 28px;
  border-radius: 18px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  box-shadow: 0 12px 32px rgba(20, 20, 19, 0.04);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}
.adro-feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--claude-accent);
  box-shadow: 0 18px 40px rgba(150, 123, 218, 0.10);
}
.adro-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  margin-bottom: 18px;
}
.adro-feature-icon svg {
  width: 26px;
  height: 26px;
}
.adro-feature-icon-models { background: #ede7ff; color: #6d4ee2; }
.adro-feature-icon-native { background: #fff1e0; color: #c66a14; }
.adro-feature-icon-privacy { background: #e3f1e8; color: #2f7a48; }

.adro-feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--claude-text);
}
.adro-feature-card p {
  margin: 0;
  color: var(--claude-muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

/* ---------- Latest version ---------- */
.adro-section-latest {
  scroll-margin-top: 100px;
}
.adro-latest-card {
  padding: 28px 32px;
  border-radius: 18px;
  border: 1px solid var(--claude-border);
  background: linear-gradient(135deg, var(--claude-surface) 0%, #faf8f1 100%);
  box-shadow: 0 12px 32px rgba(20, 20, 19, 0.04);
  margin-bottom: 18px;
}
.adro-latest-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}
.adro-latest-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--claude-text);
  color: #fdfcf7;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0;
}
.adro-latest-date {
  color: var(--claude-muted);
  font-size: 0.92rem;
}
.adro-latest-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.adro-latest-platform {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  color: var(--claude-text);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 500;
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease;
}
.adro-latest-platform:hover {
  border-color: var(--claude-accent);
  background: var(--claude-accent-soft);
  color: var(--claude-accent);
  transform: translateY(-1px);
}
.adro-latest-platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
}
.adro-latest-platform-icon svg {
  width: 100%;
  height: 100%;
}
.adro-latest-note {
  margin: 0;
  color: var(--claude-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

/* Archive hint */
.adro-archive-hint {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 22px;
  border-radius: 14px;
  background: var(--claude-bg-soft);
  border: 1px solid var(--claude-border-soft);
  color: var(--claude-muted);
}
.adro-archive-hint svg {
  flex: none;
  width: 24px;
  height: 24px;
  color: var(--claude-mid);
  margin-top: 1px;
}
.adro-archive-hint strong {
  display: block;
  font-size: 0.94rem;
  color: var(--claude-text);
  margin-bottom: 4px;
}
.adro-archive-hint p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.6;
}
.adro-archive-hint code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--claude-surface);
  border: 1px solid var(--claude-border-soft);
  color: var(--claude-text);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.82em;
  word-break: break-all;
}

/* ---------- System requirements ---------- */
.adro-sysreq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}
.adro-sysreq-card {
  display: flex;
  gap: 18px;
  padding: 24px 26px;
  border-radius: 18px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  box-shadow: 0 12px 32px rgba(20, 20, 19, 0.04);
}
.adro-sysreq-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
}
.adro-sysreq-icon svg {
  width: 24px;
  height: 24px;
}
.adro-sysreq-body h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--claude-text);
}
.adro-sysreq-body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--claude-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}
.adro-sysreq-body li {
  position: relative;
  padding-left: 16px;
}
.adro-sysreq-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--claude-mid);
}

/* ---------- FAQ ---------- */
.adro-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.adro-faq-item {
  border: 1px solid var(--claude-border);
  border-radius: 14px;
  background: var(--claude-surface);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.adro-faq-item[open] {
  border-color: var(--claude-accent);
  box-shadow: 0 8px 24px rgba(150, 123, 218, 0.08);
}
.adro-faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--claude-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  -webkit-tap-highlight-color: transparent;
}
.adro-faq-item summary::-webkit-details-marker {
  display: none;
}
.adro-faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--claude-mid);
  transition: transform 0.2s ease, color 0.2s ease;
}
.adro-faq-item[open] summary::after {
  content: '−';
  color: var(--claude-accent);
}
.adro-faq-item p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--claude-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}
.adro-faq-item a {
  color: var(--claude-accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.adro-faq-item a:hover {
  opacity: 0.8;
}

/* Warning cards */
.adro-warn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.adro-warn-card {
  padding: 28px;
  border-radius: 18px;
  border: 1px solid var(--claude-border);
  background: var(--claude-surface);
  box-shadow: 0 12px 32px rgba(20, 20, 19, 0.04);
}
.adro-warn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  margin-bottom: 16px;
}
.adro-warn-icon svg {
  width: 24px;
  height: 24px;
}
.adro-warn-icon-win {
  background: #e7efff;
  color: #2566cc;
}
.adro-warn-icon-mac {
  background: #ece8f8;
  color: #5b4ab3;
}
.adro-warn-card h3 {
  margin: 0 0 14px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--claude-text);
}
.adro-warn-card ol {
  margin: 0;
  padding-left: 18px;
  color: var(--claude-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}
.adro-warn-card ol li {
  margin-bottom: 6px;
}
.adro-warn-card code,
.adro-foot-hint code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--claude-bg-soft);
  border: 1px solid var(--claude-border-soft);
  color: var(--claude-text);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.86em;
}

/* Foot hint */
.adro-foot-hint {
  padding: 18px 22px;
  border-radius: 14px;
  background: var(--claude-bg-soft);
  border: 1px solid var(--claude-border-soft);
  color: var(--claude-muted);
  font-size: 0.88rem;
  text-align: center;
  line-height: 1.7;
}
.adro-foot-hint p {
  margin: 0;
}

/* ---------- Footer ---------- */
.adro-footer {
  background: #1d1c1a;
  color: #f5f3ec;
  padding: 56px 0 28px;
  margin-top: 80px;
}
.adro-footer-inner {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  align-items: flex-start;
}
.adro-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 32rem;
}
.adro-footer-logo {
  height: 36px;
  object-fit: contain;
  opacity: 0.95;
  align-self: flex-start;
}
.adro-footer-tagline {
  margin: 0;
  color: rgba(245, 243, 236, 0.55);
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}
.adro-footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, auto));
  gap: 40px;
}
.adro-footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.adro-footer-col h4 {
  margin: 0 0 4px;
  color: #f5f3ec;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.65;
}
.adro-footer-col a {
  color: rgba(245, 243, 236, 0.78);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}
.adro-footer-col a:hover {
  color: #fdfcf7;
}
.adro-footer-bottom {
  width: min(1180px, calc(100% - 48px));
  margin: 36px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(245, 243, 236, 0.1);
}
.adro-footer-bottom p {
  margin: 0;
  color: rgba(245, 243, 236, 0.45);
  font-size: 0.82rem;
}
.adro-footer-copy {
  margin: 0;
  color: rgba(245, 243, 236, 0.6);
  font-size: 0.86rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .adro-hero {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 60px;
  }
  .adro-hero-visual {
    order: -1;
    max-width: 440px;
    margin: 0 auto;
  }
  .adro-main {
    padding: 36px 0 64px;
  }
  .adro-nav-inner {
    min-height: 64px;
  }
  .adro-nav-brand-mark {
    width: 110px;
    height: 44px;
  }
  .adro-nav-brand {
    gap: 10px;
  }
  .adro-nav-wordmark {
    font-size: 1.2rem;
  }
  .adro-footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .adro-footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .adro-feature-card,
  .adro-sysreq-card {
    padding: 24px 22px;
  }
  .adro-latest-card {
    padding: 22px 24px;
  }
}

@media (max-width: 600px) {
  .adro-headline {
    font-size: 2rem;
  }
  .adro-nav-menu {
    gap: 14px;
  }
  .adro-nav-link {
    font-size: 0.86rem;
  }
  .adro-nav-brand-divider,
  .adro-nav-wordmark {
    /* On tight screens the aitokens logo + wordmark double-up looks crowded —
       hide the wordmark, keep just the logo */
    display: none;
  }
  .adro-primary-cta {
    width: 100%;
    padding: 16px 20px;
  }
  .adro-primary-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .adro-section {
    margin-bottom: 56px;
  }
  .adro-section-head {
    margin-bottom: 24px;
  }
  .adro-latest-row {
    gap: 10px;
  }
  .adro-latest-card,
  .adro-feature-card {
    padding: 22px 20px;
  }
  .adro-sysreq-card {
    flex-direction: column;
    gap: 14px;
  }
  .adro-faq-item summary {
    padding: 16px 18px;
    font-size: 0.92rem;
  }
  .adro-faq-item p {
    padding: 0 18px 18px;
    font-size: 0.88rem;
  }
  .adro-archive-hint {
    flex-direction: column;
    gap: 10px;
  }
  .adro-footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}