:root {
  --bg: #f6f4ee;
  --surface: #ffffff;
  --ink: #141821;
  --muted: #4a5263;
  --line: #dcd8cc;
  --accent: #2647e0;
  --accent-ink: #ffffff;
  --marker: #ffd23f;
  --band: #141821;
  --band-ink: #f6f4ee;
  --radius: 14px;
  --wrap: 1120px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --surface: #171c26;
    --ink: #eef0f5;
    --muted: #aab2c3;
    --line: #2a3140;
    --accent: #7d94ff;
    --accent-ink: #0f131a;
    --band: #1e2533;
    --band-ink: #eef0f5;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -.02em; max-width: 20ch; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--surface); padding: 10px 14px; z-index: 10; }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.top { border-bottom: 1px solid var(--line); background: var(--bg); }
.top-in { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--ink); text-decoration: none; font-weight: 700; }
.nav { display: flex; flex-wrap: wrap; gap: 0 4px; order: 3; width: 100%; }
.nav a, .lang, .foot-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; color: var(--ink); text-decoration: none; border-radius: 8px; }
.nav a:hover, .foot-nav a:hover, .lang:hover { background: var(--surface); }
.nav a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--marker); }
.top-act { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-left: auto; }
@media (min-width: 1000px) {
  .top-in { flex-wrap: nowrap; }
  .nav { order: 0; width: auto; flex: 1 1 auto; flex-wrap: nowrap; }
  .nav a { padding: 0 8px; white-space: nowrap; }
  .top-act { flex-wrap: nowrap; white-space: nowrap; }
}
@media (max-width: 480px) {
  .top-act .btn.ghost { display: none; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px;
  background: var(--accent); color: var(--accent-ink); border: 2px solid var(--accent); border-radius: 999px;
  font-weight: 650; text-decoration: none; text-align: center;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.big { min-height: 52px; padding: 0 26px; font-size: 1.05rem; }
.btn.inv { background: var(--marker); border-color: var(--marker); color: #141821; }

.hero { padding: 56px 0 40px; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 62ch; }
.hero-act { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-top: 24px; }
.trial { color: var(--muted); }
.legal-hero { padding-bottom: 8px; }

.sec { padding: 40px 0; }
.sec + .sec { border-top: 1px solid var(--line); }
.intro { color: var(--muted); max-width: 66ch; }
.cards, .steps, .gallery { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.cards li, .steps li, .tpl { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.cards p, .steps p, .tpl p { color: var(--muted); margin-bottom: .6em; }
.compare li { border-top: 4px solid var(--accent); }
.steps .num {
  display: inline-grid; place-items: center; width: 36px; height: 36px; margin-bottom: 10px;
  border-radius: 50%; background: var(--marker); color: #141821; font-weight: 800;
}
.tpl { display: flex; flex-direction: column; }
.tpl .style { font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-bottom: .4em; }
.tpl .btn { margin-top: auto; align-self: flex-start; }
.more { margin-top: 20px; }
.more a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }
.prose { max-width: 72ch; }
.prose h3, .prose .sub { margin-top: 1.4em; }
.prose .sub { font-size: 1.15rem; }
.prose p { color: var(--muted); }

.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 16px 32px 16px 0; position: relative; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.4rem; color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq summary h2 { display: inline; font-size: 1.15rem; margin: 0; }
.faq details p { color: var(--muted); padding-bottom: 12px; }

.band { background: var(--band); color: var(--band-ink); padding: 48px 0; margin-top: 24px; }
.band p { max-width: 60ch; opacity: .85; }

.foot { padding: 32px 0 40px; color: var(--muted); font-size: .95rem; border-top: 1px solid var(--line); }
.foot-nav { display: flex; flex-wrap: wrap; gap: 0 4px; margin: 0 -10px 12px; }
.foot-nav a { color: var(--ink); }
.foot-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--marker); text-decoration-thickness: 3px; }
.copy { font-size: .85rem; }