/* The marketing site stylesheet - the only hand-written one.
   Brand colour and logo come from the generated /assets/brand.css (package: console-i18n-brand).
   No brand name, host or address belongs in this file either: it ships to every white-label
   channel, and a comment naming our brand would travel with it. No CJK characters either -
   the copy lives in locales/*.json. */

:root {
  --ink: #14181f;
  --ink-soft: #4a5361;
  --line: #e2e6ec;
  --surface: #ffffff;
  --surface-soft: #f6f8fa;
  --accent: var(--brand-primary, #1f6feb);
  --radius: 10px;
  --gap: 24px;
  --wrap: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8ecf1;
    --ink-soft: #a4adba;
    --line: #2b323c;
    --surface: #14181f;
    --surface-soft: #1b2028;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 12px; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.3rem, 2.6vw, 1.7rem); }
h3 { font-size: 1.08rem; }

p { margin: 0 0 14px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  padding: 10px 14px;
  z-index: 10;
}
.skip:focus { left: 12px; top: 12px; }

/* ---------- navigation ---------- */

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}

.nav-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; }
.nav-brand:hover { text-decoration: none; }

.logo { display: block; width: auto; height: 30px; }

.wordmark { font-size: 1.06rem; letter-spacing: -0.01em; }

.nav-links { display: flex; flex-wrap: wrap; gap: 16px; margin-left: auto; }

.nav-link { color: var(--ink-soft); font-size: 0.95rem; }

.nav-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }

/* ---------- buttons ---------- */

.button {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 600;
  text-align: center;
}
.button:hover { text-decoration: none; filter: brightness(1.07); }

.button-secondary { background: transparent; color: var(--accent); }
.button-small { padding: 8px 14px; font-size: 0.9rem; }

/* ---------- layout ---------- */

.hero, .section, .prose, .footer {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 48px 20px;
}

.hero-small { padding-bottom: 8px; }

.hero .lead, .prose .lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 10px; }

.note { color: var(--ink-soft); font-size: 0.94rem; }

.note-banner {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.section-note {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  max-width: var(--wrap);
}

.section h2 + p { color: var(--ink-soft); }

.grid { display: grid; gap: var(--gap); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
/* 功能块单独一档：minmax(240px) 在 1080 的版心上会挤进 4 列，6 个块就排成 4+2 留空档。 */
.grid-features { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}
.card:hover { border-color: var(--accent); text-decoration: none; }
.card p { color: var(--ink-soft); margin: 0; }

.steps { color: var(--ink-soft); padding-left: 22px; }
.steps li { margin-bottom: 8px; }

.list { color: var(--ink-soft); padding-left: 22px; }
.list li { margin-bottom: 6px; }

.demo-media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--ink-soft);
  object-fit: cover;
}

.demo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
}

.tier {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.tier h3 { margin: 0; }
.tier .button { margin-top: auto; }

.price { margin: 0; font-weight: 650; }
.price-value { font-size: 1.45rem; }
.price-period { color: var(--ink-soft); font-size: 0.9rem; font-weight: 400; }
.price-pending .price-value { font-size: 1.05rem; color: var(--ink-soft); font-weight: 500; }

.tier-devices { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.facts { margin: 0; }
.facts dt { font-weight: 600; margin-top: 14px; }
.facts dd { margin: 2px 0 0; color: var(--ink-soft); }

/* ---------- prose (docs and legal) ---------- */

.prose { max-width: 760px; }
.prose h2 { margin-top: 32px; }
.prose ul, .prose ol { color: var(--ink-soft); }
.prose blockquote {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--line);
  color: var(--ink-soft);
}
.prose pre {
  overflow-x: auto;
  padding: 14px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.prose code { font-size: 0.92em; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
  max-width: none;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  max-width: var(--wrap);
  margin: 0 auto;
}

.footer-column h2 { font-size: 0.86rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-soft); }
.footer-column ul { list-style: none; margin: 0; padding: 0; }
.footer-column li { margin-bottom: 6px; font-size: 0.95rem; }
.footer-column a { color: var(--ink); }

.footer-note, .footer-rights {
  max-width: var(--wrap);
  margin: 24px auto 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- 产品页功能块 ---------- */

.feature h3 { margin-bottom: 6px; }

/* ---------- 文档索引 ---------- */

.doc-list { list-style: none; margin: 0; padding: 0; }
.doc-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.doc-item:first-child { padding-top: 0; }
.doc-item:last-child { border-bottom: 0; padding-bottom: 0; }
.doc-item a { font-weight: 600; font-size: 1.06rem; }
.doc-item p { margin: 5px 0 0; color: var(--ink-soft); font-size: 0.97rem; max-width: 70ch; }

/* ---------- 窄屏 ----------
   布局本身是流式的（flex 换行 + auto-fit 网格），这里只调间距与行高：
   19px 的正文在手机上偏大，长行的导航挤成两行时左对齐比靠右好看。 */

@media (max-width: 760px) {
  body { font-size: 16px; }
  .hero, .section, .prose { padding: 32px 16px; }
  .footer { padding: 32px 16px; }
  .nav { padding: 12px 16px; gap: 10px 16px; }
  .nav-links { margin-left: 0; gap: 14px; }
  .nav-actions { gap: 12px; }
  .hero-small { padding-bottom: 4px; }
  .grid { gap: 16px; }
  .tier { padding: 18px 16px; }
  .doc-item { padding: 14px 0; }
}