@charset "UTF-8";
:root {
  --brand: #8b63e6;
  --brand-dark: #6542bf;
  --soft: #f0eaff;
  --ink: #31244f;
  --muted: #706587;
  --line: #ded2fa;
  --deep: #40335f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  padding-top: 76px;
  min-width: 320px;
  color: var(--ink);
  font: 16px/1.7 "Microsoft YaHei","PingFang SC",Arial,sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

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

button {
  border: 0;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  background: #fcfaff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 30px;
  width: min(1180px,calc(100% - 40px));
  min-height: 76px;
  margin: auto;
}

.brand,.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand img,.footer-brand img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 5px;
}

.brand span,.footer-brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand b,.footer-brand b {
  font-size: 19px;
}

small {
  margin-top: 3px;
  color: var(--muted);
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  gap: 26px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-weight: 800;
}

.header-actions {
  display: flex;
  gap: 10px;
}

.desktop-download,.mobile-download,.primary-button,.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 18px;
  color: #fff;
  background: var(--brand);
  border-radius: 5px;
  font-weight: 800;
  white-space: nowrap;
}

.primary-button,.download-button {
  min-height: 54px;
  padding: 14px 30px;
  font-size: 16px;
}

.mobile-download,.menu-toggle {
  display: none;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.hero {
  background: radial-gradient(circle at 78% 35%, #e8dcff 0, #f8f4ff 25%, #fff 58%);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: clamp(48px,7vw,108px);
  width: min(1200px,calc(100% - 40px));
  min-height: 690px;
  padding: 72px 0 84px;
  margin: auto;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow,.heading>span,.download>div>span {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
}

.eyebrow {
  padding: 5px 10px;
  background: var(--soft);
  border-radius: 5px;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(42px,6vw,72px);
  line-height: 1.04;
}

.hero-slogan {
  margin: 0 0 13px;
  color: var(--brand-dark);
  font-size: clamp(20px,2.4vw,30px);
  font-weight: 800;
}

.hero-description {
  max-width: 600px;
  margin: 0 0 26px;
  color: var(--muted);
}

.hero-actions {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.hero-carousel {
  flex: none;
  width: clamp(280px,30vw,360px);
  height: clamp(498px,53.333vw,640px);
  padding: 4px;
  margin-left: auto;
  background: var(--deep);
  border: 4px solid var(--deep);
  border-radius: 5px;
}

.app-swiper,.app-swiper .swiper-wrapper,.app-swiper .swiper-slide,.app-swiper img {
  width: 100%;
  height: 100%;
}

.app-swiper {
  overflow: hidden;
  border-radius: 5px;
}

.app-swiper img {
  object-fit: contain;
}

.swiper-pagination-bullet {
  width: 22px;
  height: 5px;
  border-radius: 5px;
}

.swiper-pagination-bullet-active {
  background: var(--brand);
}

.section {
  padding: 96px 0;
  scroll-margin-top: 96px;
}

.section-inner {
  width: min(1080px,calc(100% - 40px));
  margin: auto;
}

.heading {
  max-width: 620px;
  margin-bottom: 32px;
}

.heading h2 {
  margin: 0 0 10px;
  font-size: clamp(34px,4vw,52px);
  line-height: 1.1;
}

.heading p {
  margin: 0;
  color: var(--muted);
}

.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.features,.reviews {
  background: #faf8ff;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 18px;
}

.feature-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.feature-main {
  display: grid;
  grid-column: 1/-1;
  grid-template-columns: 72px minmax(0,1fr) auto;
  align-items: center;
  gap: 24px;
  background: #f6f1ff;
}

.feature-card img {
  width: 48px;
  height: 48px;
  padding: 10px;
  margin-bottom: 24px;
  background: var(--soft);
  border-radius: 5px;
}

.feature-main img {
  width: 72px;
  height: 72px;
  padding: 15px;
  margin: 0;
}

.feature-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}

h3 {
  margin: 0 0 9px;
  font-size: 22px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.feature-card strong {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--brand-dark);
}

.faq-list {
  width: min(100%,920px);
  margin: auto;
}

details {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 5px;
}

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

summary: :-webkit-details-marker {
  display: none;
}

summary i {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: var(--brand-dark);
  background: var(--soft);
  border-radius: 5px;
  font-size: 24px;
  font-style: normal;
  font-weight: 400;
}

details[open] {
  border-color: var(--brand);
  box-shadow: inset 4px 0 0 var(--brand);
}

details[open] i {
  transform: rotate(45deg);
}

details p {
  padding: 0 22px 20px;
  margin: 0;
  color: var(--muted);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(260px,1fr));
  gap: 22px;
}

.review-grid article {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.review-grid header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.review-grid header img {
  width: 42px;
  height: 42px;
  padding: 8px;
  background: var(--soft);
  border-radius: 5px;
}

.review-grid em {
  color: var(--brand);
  font-size: 12px;
  font-style: normal;
}

.review-grid article>p {
  color: var(--muted);
  font-size: 14px;
}

time {
  margin-top: auto;
  color: var(--muted);
  font-size: 12px;
}

.download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 72px max(20px,calc((100% - 1080px)/2));
  color: #fff;
  background: var(--deep);
  border-top: 5px dotted var(--brand);
  border-bottom: 5px dotted var(--brand);
}

.download>div>span {
  color: #d6c4ff;
}

.download h2 {
  margin: 0 0 10px;
  font-size: clamp(30px,4vw,46px);
  line-height: 1.1;
}

.download p {
  margin: 0;
  color: #e7ddff;
}

footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  width: min(1180px,calc(100% - 40px));
  min-height: 150px;
  margin: auto;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

footer p {
  justify-self: end;
  color: var(--muted);
  font-size: 12px;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  width: 44px;
  height: 44px;
  color: #fff;
  background: var(--brand);
  border-radius: 5px;
  opacity: 0;
  pointer-events: none;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width:980px) {
  .main-nav {
    position: fixed;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    padding: 15px 20px;
    background: #fcfaff;
    border-bottom: 1px solid var(--line);
  }
  .main-nav.open {
    display: block;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }
  .main-nav li+li {
    border-top: 1px solid var(--line);
  }
  .main-nav a {
    display: block;
    padding: 10px 0;
  }
  .desktop-download {
    display: none;
  }
  .mobile-download,.menu-toggle {
    display: inline-flex;
  }
  footer {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 32px 0;
    text-align: center;
  }
  footer p {
    justify-self: center;
  }

}

@media (max-width:700px) {
  body {
    padding-top: 70px;
  }
  .site-header,.header-inner {
    min-height: 70px;
  }
  .header-inner,.section-inner {
    width: min(calc(100% - 28px),1080px);
  }
  .header-inner {
    gap: 8px;
  }
  .header-actions {
    margin-left: auto;
    gap: 7px;
  }
  .brand img {
    width: 37px;
    height: 37px;
  }
  .brand b {
    font-size: 16px;
  }
  .brand small {
    font-size: 12px;
  }
  .mobile-download {
    min-height: 38px;
    padding: 8px 10px;
    font-size: 13px;
  }
  .menu-toggle {
    display: block;
  }
  .main-nav {
    top: 70px;
  }
  .hero-inner {
    flex-direction: column;
    gap: 42px;
    min-height: 0;
    padding: 54px 0 72px;
    text-align: center;
  }
  .hero-description {
    margin-right: auto;
    margin-left: auto;
  }
  .hero-carousel {
    align-self: center;
    width: min(100%,330px);
    height: min(calc((100vw - 28px)*1.7778),586px);
    margin-left: 0;
  }
  .section {
    padding: 72px 0;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-main {
    grid-template-columns: 58px minmax(0,1fr);
    gap: 18px;
  }
  .feature-main strong {
    grid-column: 1/-1;
    justify-self: start;
  }
  .download {
    flex-direction: column;
    align-items: flex-start;
    padding: 58px 14px;
  }
  .download-button {
    align-self: center;
  }
  a,button,summary {
    transition: none;
  }

}