:root {
  --bg: #f6fafd;
  --text: #212121;
  --muted: #9e9e9e;
  --accent: #005555;
  --secondary: #f8b400;
  --banner: #181a20;
  --white: #ffffff;
  --soft: #e7f2f2;
  --shadow: 0 8px 24px rgba(24, 26, 32, 0.06);
}

* {
  box-sizing: border-box;
}

body>svg {
  display: none;
}

html,
body {
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.icon {
  display: block;
  fill: currentColor;
}

.page {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  min-width: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header,
.hero,
.devices,
.guide,
.footer {
  padding-left: 40px;
  padding-right: 40px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.2;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.plats,
.marks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plats {
  color: var(--accent);
}

.plats li,
.marks li,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.plats li {
  font-size: 14px;
  font-weight: 500;
}

.plats .icon,
.tile .icon,
.marks .icon {
  width: 16px;
  height: 16px;
}

.hero {
  display: flex;
  align-items: center;
  gap: 40px;
  padding-top: 8px;
  padding-bottom: 32px;
}

.copy {
  flex: 1;
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 24px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
}

h1 {
  margin: 0;
  font-size: 48px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.sub {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.trailer {
  position: relative;
  flex: none;
  width: 480px;
  max-width: 100%;
  min-width: 0;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  background: var(--banner);
}

.trailer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trailer::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(0, 0, 0, 0.35));
  pointer-events: none;
}

.play {
  position: absolute;
  z-index: 1;
  left: 69.8%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  border: 0;
  border-radius: 999px;
  background: var(--banner);
  color: var(--white);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  cursor: pointer;
  padding: 10px 18px 10px 16px;
}

.play .icon {
  width: 14px;
  height: 14px;
}

.devices {
  padding-top: 0;
  padding-bottom: 40px;
}

.devices h2 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.3;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  min-height: 100%;
  padding: 24px;
  border-radius: 16px;
  background: var(--white);
}

.tile {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--soft);
  color: var(--accent);
}

.tile .icon {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 29px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 22px;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: auto;
}

.actions.split {
  justify-content: stretch;
}

.actions.split .btn {
  flex: 1;
}

.btn {
  min-height: 39px;
  padding: 12px 8px;
  border-radius: 12px;
  background: var(--secondary);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

button.btn {
  border: 0;
  font-family: inherit;
  cursor: pointer;
}

button.btn[aria-busy="true"] {
  cursor: wait;
}

.actions:not(.split) .btn {
  width: 152px;
}

.btn .icon {
  width: 14px;
  height: 14px;
  color: var(--accent);
  fill: currentColor;
}

.guide {
  padding-top: 8px;
  padding-bottom: 48px;
}

.guide h2 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.3;
}

.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
  min-width: 0;
  padding: 24px;
  border-radius: 16px;
  background: var(--white);
}

.step-head {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.steps img {
  display: block;
  width: min(280px, 100%);
  margin: 0 auto;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.num {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--soft);
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
}

.steps p {
  margin: 0;
  color: var(--text);
  font-size: 18px;
  line-height: 26px;
}

.btn:focus-visible,
.play:focus-visible,
.brand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding-top: 24px;
  padding-bottom: 24px;
  background: var(--banner);
  color: var(--white);
}

.footer strong,
.footer span {
  display: block;
}

.footer strong {
  font-size: 16px;
  font-weight: 600;
}

.footer span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.marks li {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--white);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
}

.marks .icon {
  color: var(--accent);
}

.legal {
  margin: 0;
  padding: 12px 40px 20px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.legal a {
  color: var(--muted);
}

@media (max-width: 900px) {

  .header,
  .hero,
  .devices,
  .guide,
  .footer,
  .legal {
    padding-left: 20px;
    padding-right: 20px;
  }

  .header,
  .devices,
  .guide,
  .footer {
    min-width: 0;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 12px;
    min-height: 0;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .hero {
    flex-direction: column;
    align-items: stretch;
    min-width: 0;
    gap: 24px;
    padding-top: 28px;
    padding-bottom: 28px;
  }

  h1 {
    font-size: 32px;
    line-height: 38px;
    letter-spacing: 0;
  }

  .sub {
    font-size: 18px;
    line-height: 25px;
  }

  .trailer {
    width: 100%;
  }

  .devices {
    padding-bottom: 28px;
  }

  .devices h2 {
    line-height: 24px;
  }

  .lead {
    line-height: 22px;
  }

  .cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .actions.split {
    flex-direction: column;
  }

  .actions.split .btn {
    flex: none;
    width: 100%;
  }

  h1 span {
    overflow-wrap: anywhere;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}