:root {
  --bg: #0b0e14;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: rgba(0, 0, 0, 0.35);
  --primary: #7c5cff;
  --primary-2: #33d1ff;
  --ring: rgba(124, 92, 255, 0.35);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans", sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --panel: rgba(255, 255, 255, 0.75);
    --panel-strong: rgba(255, 255, 255, 0.95);
    --text: rgba(12, 16, 24, 0.92);
    --muted: rgba(12, 16, 24, 0.65);
    --border: rgba(12, 16, 24, 0.12);
    --shadow: rgba(0, 0, 0, 0.10);
    --ring: rgba(124, 92, 255, 0.20);
  }
}

[data-theme="dark"] {
  --bg: #0b0e14;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: rgba(0, 0, 0, 0.35);
  --ring: rgba(124, 92, 255, 0.35);
}

[data-theme="light"] {
  --bg: #f6f7fb;
  --panel: rgba(255, 255, 255, 0.75);
  --panel-strong: rgba(255, 255, 255, 0.95);
  --text: rgba(12, 16, 24, 0.92);
  --muted: rgba(12, 16, 24, 0.65);
  --border: rgba(12, 16, 24, 0.12);
  --shadow: rgba(0, 0, 0, 0.10);
  --ring: rgba(124, 92, 255, 0.20);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% 10%, rgba(124, 92, 255, 0.28), transparent 60%),
    radial-gradient(900px 500px at 90% 20%, rgba(51, 209, 255, 0.22), transparent 55%),
    radial-gradient(900px 700px at 40% 90%, rgba(255, 125, 88, 0.14), transparent 60%),
    var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg), transparent 25%);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.brand__mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 24px var(--shadow);
}

.brand__text {
  display: grid;
  line-height: 1.1;
}

.brand__name {
  font-weight: 800;
}

.brand__tag {
  font-size: 12px;
  color: var(--muted);
}

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

.nav__link {
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--muted);
  transition: background 140ms ease, color 140ms ease;
}

.nav__link:hover {
  background: var(--panel);
  color: var(--text);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 24px color-mix(in oklab, var(--shadow), transparent 55%);
  transition: transform 120ms ease, background 120ms ease, border 120ms ease;
}

.button:hover {
  transform: translateY(-1px);
  background: var(--panel-strong);
}

.button--primary {
  border-color: color-mix(in oklab, var(--primary), white 25%);
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
}

.button--ghost {
  background: transparent;
}

.button--lg {
  padding: 12px 16px;
  border-radius: 14px;
}

.hero {
  padding: 64px 0 26px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  margin: 0 0 16px;
}

.hero__title {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero__subtitle {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero__bullets {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.hero__bullets li {
  padding-left: 18px;
  position: relative;
}

.hero__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

.hero__visual {
  display: grid;
  gap: 12px;
}

.hero__note {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.mock {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 26px 60px var(--shadow);
}

.mock__top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel-strong), transparent 30%);
}

.mock__dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: var(--border);
}

.mock__title {
  margin-left: 8px;
  font-size: 12px;
  color: var(--muted);
}

.mock__body {
  padding: 14px;
  display: grid;
  gap: 12px;
}

.mock__card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  background: color-mix(in oklab, var(--panel-strong), transparent 30%);
}

.mock__cardTitle {
  font-weight: 800;
}

.mock__cardText {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.mock__pill {
  display: inline-flex;
  margin-top: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 12px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

.mock__strip {
  display: grid;
  gap: 10px;
  padding-top: 4px;
}

.mock__stripBar {
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, color-mix(in oklab, var(--primary), transparent 15%), transparent);
  opacity: 0.8;
}

.section {
  padding: 56px 0;
}

.section--alt {
  background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--panel), transparent 55%) 30%, transparent);
}

.section__head {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.section__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.section__desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mt {
  margin-top: 16px;
}

.card {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 22px 44px var(--shadow);
}

.card--muted {
  background: color-mix(in oklab, var(--panel), transparent 10%);
}

.card__title {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.card__text {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.card__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.card__list li {
  padding-left: 18px;
  position: relative;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: color-mix(in oklab, var(--primary-2), var(--primary) 40%);
}

.pillRow {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel), transparent 10%);
  color: var(--muted);
  font-weight: 700;
  font-size: 12px;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
}

.step__num {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

.step__title {
  font-weight: 800;
}

.step__text {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}

.callout {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: color-mix(in oklab, var(--panel-strong), transparent 22%);
  display: grid;
  gap: 8px;
}

.callout__title {
  font-weight: 900;
}

.callout__text {
  color: var(--muted);
  line-height: 1.7;
}

.faq {
  display: grid;
  gap: 10px;
}

.faq__item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 14px 16px;
}

.faq__q {
  cursor: pointer;
  font-weight: 900;
  list-style: none;
}

.faq__q::-webkit-details-marker {
  display: none;
}

.faq__a {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.7;
}

.download {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 16px;
  align-items: stretch;
}

.download__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.download__text {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.download__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.download__hint {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.codebox {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--panel-strong), transparent 25%);
  overflow: hidden;
}

.codebox__title {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-weight: 900;
  font-size: 12px;
  color: var(--muted);
}

.codebox__pre {
  margin: 0;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  line-height: 1.6;
  color: color-mix(in oklab, var(--text), transparent 10%);
  white-space: pre-wrap;
  word-break: break-word;
}

.download__panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px;
  display: grid;
  gap: 12px;
  box-shadow: 0 22px 44px var(--shadow);
}

.stat {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: color-mix(in oklab, var(--panel-strong), transparent 30%);
  display: grid;
  gap: 6px;
}

.stat__k {
  color: var(--muted);
  font-weight: 800;
  font-size: 12px;
}

.stat__v {
  font-weight: 900;
  line-height: 1.4;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  background: color-mix(in oklab, var(--bg), transparent 15%);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.footer__brand {
  font-weight: 900;
}

.footer__meta {
  color: var(--muted);
  font-size: 12px;
  margin-top: 6px;
}

.footer__right {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer__link {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
}

.footer__link:hover {
  color: var(--text);
  background: var(--panel);
}

.button:focus-visible,
.nav__link:focus-visible,
.footer__link:focus-visible,
.faq__q:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .download {
    grid-template-columns: 1fr;
  }
  .grid--3 {
    grid-template-columns: 1fr;
  }
  .grid--2 {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none;
  }
  .brand {
    min-width: unset;
  }
}