@charset "UTF-8";

:root {
  --ink: #22262d;
  --ink-soft: #4e5862;
  --muted: #707b84;
  --blue: #56bde0;
  --blue-deep: #167fa7;
  --blue-soft: #e0f4fa;
  --coral: #ff6b48;
  --peach: #ffd7cb;
  --silver: #edf2f4;
  --paper: #f8fafb;
  --white: #ffffff;
  --line: #cbd8de;
  --content: 1200px;
  --header-height: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  padding-top: var(--header-height);
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, figure, blockquote { margin: 0; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-shell { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }
.section-block { padding: 86px 0; }
.icon {
  display: inline-block;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}
.icon-menu { background-image: url("../icons/menu.svg"); }
.icon-compass { background-image: url("../icons/compass.svg"); }
.icon-heart { background-image: url("../icons/heart.svg"); }
.icon-chat { background-image: url("../icons/chat.svg"); }
.icon-quote { background-image: url("../icons/quote.svg"); }
.icon-arrow { background-image: url("../icons/arrow.svg"); }
.icon-plus { background-image: url("../icons/plus.svg"); }
.icon-globe { background-image: url("../icons/globe.svg"); }
.icon-top { background-image: url("../icons/top.svg"); }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
  backface-visibility: hidden;
  transform: translateZ(0);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 40px), var(--content));
  height: 100%;
  margin: 0 auto;
}
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 190px; }
.brand img { width: 48px; height: 48px; object-fit: contain; border: 1px solid var(--peach); border-radius: 13px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 20px; letter-spacing: -.5px; }
.brand-copy strong::first-letter { color: var(--blue-deep); }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: 12px; }
.desktop-nav ul { display: flex; align-items: center; gap: 38px; }
.desktop-nav a { position: relative; display: block; padding: 26px 0 23px; font-size: 14px; font-weight: 700; white-space: nowrap; }
.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--coral);
  content: "";
  transform: scaleX(0);
  transition: transform .2s ease;
}
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--blue-deep); outline: none; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); }
.mobile-actions { display: none; }

.hero { position: relative; overflow: hidden; background: var(--white); border-bottom: 1px solid var(--line); }
.hero::before {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 38%;
  height: 110px;
  background: var(--blue-soft);
  border-radius: 0 100% 0 0;
  content: "";
}
.hero-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); align-items: center; min-height: 640px; }
.hero-copy { position: relative; z-index: 3; max-width: 650px; padding: 70px 0; }
.eyebrow { margin-bottom: 14px; color: var(--blue-deep); font-size: 13px; font-weight: 900; letter-spacing: 2px; }
.hero h1 { font-size: clamp(72px, 8vw, 120px); line-height: .92; letter-spacing: -7px; }
.hero-title { margin-top: 25px; font-size: clamp(25px, 2.8vw, 40px); font-weight: 900; line-height: 1.25; }
.hero-description { max-width: 610px; margin-top: 25px; color: var(--ink-soft); font-size: 16px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 32px; }
.hero-points span { display: inline-flex; align-items: center; gap: 9px; color: var(--blue-deep); font-weight: 800; white-space: nowrap; }
.hero-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 156px;
  min-height: 50px;
  margin-top: 28px;
  padding: 12px 24px;
  color: #fff;
  background: var(--coral);
  border: 2px solid var(--coral);
  font-size: 15px;
  font-weight: 900;
  white-space: nowrap;
}
.hero-download .icon { filter: brightness(0) invert(1); }
.hero-download:hover, .hero-download:focus-visible {
  color: var(--ink);
  background: var(--blue-soft);
  border-color: var(--blue-deep);
  outline: none;
}
.hero-download:hover .icon, .hero-download:focus-visible .icon { filter: none; }
.support-copy { margin-top: 20px; color: var(--muted); font-size: 13px; }
.hero-device { position: relative; display: flex; align-items: center; justify-content: flex-end; min-height: 640px; }
.circle { position: absolute; display: block; border-radius: 50%; }
.circle-coral { top: 16px; right: 2%; width: 420px; height: 420px; background: var(--coral); }
.circle-blue { right: -100px; bottom: 5px; width: 350px; height: 350px; background: var(--blue-soft); }
.phone-frame {
  position: relative;
  z-index: 2;
  width: 310px;
  height: 600px;
  padding: 13px;
  background: #111419;
  border: 2px solid #060709;
  border-radius: 48px;
  box-shadow: 24px 28px 0 rgba(22, 127, 167, .18);
}
.phone-speaker { position: absolute; z-index: 3; top: 17px; left: 50%; width: 88px; height: 21px; background: #090b0e; border-radius: 0 0 16px 16px; transform: translateX(-50%); }
.phone-screen { width: 100%; height: 100%; overflow: hidden; background: #fff; border-radius: 35px; }
.phone-screen img { display: block; width: 100%; height: 100%; object-fit: contain; }

.section-heading { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 42px; }
.section-number { color: var(--blue-deep); font-size: 27px; font-weight: 900; line-height: 1.25; font-variant-numeric: tabular-nums; }
.section-heading h2 { font-size: clamp(34px, 4vw, 54px); line-height: 1.05; letter-spacing: -2px; }
.section-heading p { margin-top: 10px; color: var(--muted); }
.compact-heading { margin-bottom: 28px; }

.discover { background: var(--paper); }
.compass-layout { display: grid; grid-template-columns: 400px 1fr; align-items: center; gap: 70px; }
.compass-center { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 350px; height: 350px; margin: 0 auto; }
.compass-center::before, .compass-center::after { position: absolute; width: 2px; height: 270px; background: var(--blue); content: ""; }
.compass-center::after { transform: rotate(90deg); }
.compass-ring { position: absolute; border: 1px solid var(--line); border-radius: 50%; }
.compass-ring-one { inset: 25px; }
.compass-ring-two { inset: 70px; border-color: var(--peach); }
.compass-center .icon { position: relative; z-index: 2; width: 76px; height: 76px; padding: 18px; background-color: #fff; border: 2px solid var(--coral); border-radius: 50%; }
.compass-center strong { position: relative; z-index: 2; margin-top: 10px; padding: 5px 18px; background: #fff; font-size: 22px; }
.channel-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.channel-list li { display: flex; gap: 17px; min-height: 130px; padding: 22px; border: 1px solid var(--line); }
.channel-list li > span { font-size: 13px; font-weight: 900; }
.channel-list strong { display: block; font-size: 19px; }
.channel-list p { margin-top: 7px; color: var(--ink-soft); font-size: 13px; }
.channel-one, .channel-four { background: var(--blue-soft); }
.channel-two { background: var(--peach); }
.channel-three { background: var(--white); }
.channel-five { grid-column: 1 / -1; min-height: 105px !important; background: var(--silver); }
.channel-one > span, .channel-four > span { color: var(--blue-deep); }
.channel-two > span, .channel-five > span { color: var(--coral); }

.collection { background: var(--white); border-top: 1px solid var(--line); }
.path-track { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); margin-bottom: 40px; }
.path-track::before { position: absolute; top: 19px; right: 11%; left: 11%; height: 2px; background: var(--line); content: ""; }
.path-track li { position: relative; z-index: 2; padding: 0 24px; text-align: center; }
.path-track li > span { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; color: #fff; background: var(--blue-deep); border: 5px solid #fff; border-radius: 50%; font-size: 12px; font-weight: 900; }
.path-track li:nth-child(even) > span { background: var(--coral); }
.path-track strong { display: block; margin-top: 12px; font-size: 17px; }
.path-track p { margin-top: 5px; color: var(--muted); font-size: 13px; }
.collection-board { display: grid; grid-template-columns: .8fr 1.2fr; gap: 22px; }
.collection-board > * { min-width: 0; }
.route-panel, .category-panel { padding: 30px; border: 1px solid var(--line); }
.route-panel { color: #fff; background: var(--ink); }
.category-panel { background: var(--blue-soft); }
.panel-label { color: var(--coral); font-size: 12px; font-weight: 900; letter-spacing: 2px; }
.route-panel h3, .category-panel h3 { margin-top: 4px; font-size: 27px; }
.route-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 22px; }
.route-list button { display: flex; align-items: center; justify-content: space-between; min-height: 52px; padding: 10px 15px; color: #fff; background: transparent; border: 1px solid #66717b; cursor: pointer; }
.route-list button:hover, .route-list button:focus-visible, .route-list .is-active { color: var(--ink); background: var(--coral); border-color: var(--coral); outline: none; }
.route-list em { font-size: 12px; font-style: normal; }
.route-list em::before { display: inline-block; width: 7px; height: 7px; margin-right: 6px; background: #4cd998; border-radius: 50%; content: ""; }
.category-tabs { display: flex; gap: 7px; margin-top: 17px; overflow-x: auto; }
.category-tabs button { min-width: 68px; padding: 9px 13px; background: #fff; border: 1px solid var(--line); cursor: pointer; white-space: nowrap; }
.category-tabs button:hover, .category-tabs button:focus-visible, .category-tabs .is-active { color: #fff; background: var(--blue-deep); border-color: var(--blue-deep); outline: none; }
.work-list { margin-top: 16px; border-top: 2px solid var(--ink); }
.work-list article { display: grid; grid-template-columns: 1.3fr .8fr auto; gap: 15px; align-items: center; min-height: 51px; padding: 10px 12px; background: rgba(255, 255, 255, .72); border-bottom: 1px solid var(--line); }
.work-list article.is-hidden { display: none; }
.work-list span { color: var(--muted); font-size: 13px; }
.work-list em { color: var(--coral); font-size: 12px; font-style: normal; font-weight: 800; }

.community {
  color: var(--ink);
  background: var(--silver);
  border-top: 1px solid var(--line);
}
.light-heading p { color: var(--muted); }
.community-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 24px; }
.community blockquote { position: relative; min-height: 310px; padding: 45px; overflow: hidden; color: var(--ink); background: var(--coral); border-radius: 0 80px 0 80px; }
.community blockquote::after { position: absolute; right: -35px; bottom: -45px; width: 200px; height: 200px; background: var(--peach); border-radius: 50%; content: ""; opacity: .45; }
.community blockquote .icon { width: 56px; height: 56px; }
.community blockquote p { position: relative; z-index: 2; margin-top: 25px; font-size: 21px; font-weight: 800; line-height: 1.65; }
.discussion-list { background: #fff; }
.discussion-list article { display: grid; grid-template-columns: 42px 1fr auto; gap: 16px; align-items: center; min-height: 76px; padding: 13px 18px; color: var(--ink); border-bottom: 1px solid var(--line); }
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 800;
}
.discussion-list strong { color: var(--coral); }
.discussion-list time { margin-left: 12px; color: var(--muted); font-size: 12px; }
.discussion-list p { color: var(--ink-soft); font-size: 13px; }
.discussion-list em { color: var(--blue-deep); font-size: 12px; font-style: normal; white-space: nowrap; }

.interfaces { background: var(--paper); }
.screenshot-track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; outline: none; }
.screenshot-track figure { display: grid; grid-template-rows: minmax(0, 1fr) auto; min-width: 0; height: 520px; overflow: hidden; background: #fff; border: 1px solid var(--line); }
.screenshot-image { min-height: 0; overflow: hidden; background: #fff; }
.screenshot-image img { display: block; width: 100%; height: 100%; object-fit: fill; }
.screenshot-track figcaption { display: flex; align-items: center; gap: 12px; min-height: 64px; padding: 14px 16px; color: #fff; background: var(--blue-deep); }
.screenshot-track figure:nth-child(even) figcaption { background: var(--coral); }
.screenshot-track figcaption span { font-size: 12px; font-weight: 900; }
.screenshot-track figcaption strong { font-size: 16px; }

.download { color: var(--ink); background: var(--blue-soft); border-top: 1px solid #b7deeb; border-bottom: 1px solid #b7deeb; }
.download-console { display: grid; grid-template-columns: .8fr 1.25fr 210px; align-items: stretch; min-height: 160px; overflow: hidden; background: #fff; border: 1px solid #a9d5e4; border-radius: 26px; }
.download-brand, .download-copy { display: flex; align-items: center; padding: 28px; border-right: 1px solid var(--line); }
.download-brand { gap: 16px; }
.download-brand img { width: 72px; height: 72px; object-fit: contain; border-radius: 18px; }
.download-brand div { display: flex; flex-direction: column; }
.download-brand strong { font-size: 24px; }
.download-brand span { color: var(--muted); font-size: 12px; }
.download-copy { flex-direction: column; align-items: flex-start; justify-content: center; }
.download-copy > span { color: var(--blue-deep); font-size: 12px; font-weight: 900; letter-spacing: 1.5px; }
.download-copy strong { margin-top: 5px; font-size: 20px; }
.download-copy p { margin-top: 4px; color: var(--muted); font-size: 13px; }
.download-link { display: flex; align-items: center; justify-content: center; gap: 12px; color: #fff; background: var(--coral); font-size: 20px; font-weight: 900; white-space: nowrap; }
.download-link .icon { filter: brightness(0) invert(1); }
.download-link:hover, .download-link:focus-visible { color: var(--ink); background: var(--blue); outline: 4px solid #fff; outline-offset: -8px; }

.support { background: #fff; }
.faq-list { border-top: 2px solid var(--ink); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button, .official-site > button { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 62px; padding: 16px 20px; background: transparent; border: 0; cursor: pointer; text-align: left; }
.faq-item button:hover, .faq-item button:focus-visible { color: var(--blue-deep); background: var(--blue-soft); outline: none; }
.faq-answer, .official-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .2s ease; }
.faq-answer p, .official-answer p { min-height: 0; overflow: hidden; color: var(--muted); }
.faq-item.is-open .faq-answer, .official-site.is-open .official-answer { grid-template-rows: 1fr; }
.faq-item.is-open .faq-answer p { padding: 4px 20px 20px; }
.faq-item.is-open .icon-plus { transform: rotate(45deg); }
.official-site { margin-top: 24px; border: 2px solid var(--blue-deep); }
.official-site > button span { display: flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 900; }
.official-site > button:hover, .official-site > button:focus-visible { background: var(--blue-soft); outline: none; }
.official-site.is-open .official-answer p { padding: 0 20px 20px 54px; }


.site-footer { color: #dce4e8; background: var(--ink); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 25px; min-height: 190px; padding: 35px 0; }
.footer-brand { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 28px; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--blue); outline: none; }
.footer-inner > p { grid-column: 1 / -1; color: #9fabb3; font-size: 12px; text-align: center; }
.back-to-top { position: fixed; z-index: 90; right: 24px; bottom: 24px; display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; opacity: 0; pointer-events: none; background: var(--coral); border: 0; border-radius: 50%; box-shadow: 0 8px 24px rgba(34, 38, 45, .22); cursor: pointer; transform: translateY(10px); transition: opacity .2s, transform .2s; }
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover, .back-to-top:focus-visible { background: var(--blue-deep); outline: 3px solid #fff; }

@media (max-width: 1000px) {
  .desktop-nav ul { gap: 23px; }
  .compass-layout { grid-template-columns: 330px 1fr; gap: 35px; }
  .compass-center { width: 310px; height: 310px; }
  .collection-board { grid-template-columns: 1fr; }
  .download-console { grid-template-columns: 1fr 1.2fr; }
  .download-link { grid-column: 1 / -1; min-height: 70px; }
}

@media (max-width: 780px) {
  :root { --header-height: 66px; }
  body { font-size: 14px; }
  .page-shell { width: min(calc(100% - 28px), var(--content)); }
  .section-block { padding: 62px 0; }
  .site-header { height: var(--header-height); }
  .header-inner { width: calc(100% - 24px); }
  .brand { min-width: 0; gap: 8px; }
  .brand img { width: 40px; height: 40px; }
  .brand-copy strong { font-size: 17px; }
  .mobile-actions { display: flex; align-items: center; gap: 8px; }
  .mobile-download { padding: 9px 12px; color: #fff; background: var(--coral); font-size: 12px; font-weight: 900; white-space: nowrap; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: #fff; border: 1px solid var(--ink); cursor: pointer; }
  .desktop-nav { position: fixed; z-index: 99; top: var(--header-height); right: 0; left: 0; display: block; max-height: 0; overflow: hidden; background: #fff; border-bottom: 1px solid var(--line); transition: max-height .2s ease; }
  .desktop-nav.is-open { max-height: 340px; }
  .desktop-nav ul { display: block; padding: 8px 14px 14px; }
  .desktop-nav a { display: block; padding: 13px 12px; border-bottom: 1px solid var(--line); font-weight: 800; }
  .hero-layout { grid-template-columns: 1fr; min-height: 0; }
  .hero-copy {
    max-width: none;
    padding: 54px 0 30px;
    text-align: center;
  }
  .hero h1 { font-size: clamp(58px, 18vw, 84px); letter-spacing: -5px; }
  .hero-title { font-size: 26px; }
  .hero-description {
    margin-right: auto;
    margin-left: auto;
    font-size: 14px;
  }
  .hero-points { justify-content: center; gap: 15px; }
  .hero-points span { font-size: 13px; }
  .hero-download { margin-right: auto; margin-left: auto; }
  .hero-device { justify-content: center; min-height: 610px; }
  .circle-coral { right: 4%; width: 340px; height: 340px; }
  .circle-blue { right: -100px; width: 290px; height: 290px; }
  .phone-frame { width: min(292px, 84vw); height: 570px; }
  .section-heading h2 { font-size: 36px; }
  .compass-layout { grid-template-columns: 1fr; }
  .compass-center { width: min(310px, 86vw); height: min(310px, 86vw); }
  .channel-list { grid-template-columns: 1fr; }
  .channel-five { grid-column: auto; min-height: 130px !important; }
  .path-track { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 12px; scroll-snap-type: x mandatory; }
  .path-track::before { display: none; }
  .path-track li { flex: 0 0 72vw; padding: 20px; background: var(--blue-soft); scroll-snap-align: start; }
  .collection-board { grid-template-columns: 1fr; }
  .route-panel, .category-panel { padding: 22px; }
  .route-list { grid-template-columns: 1fr; }
  .work-list article { grid-template-columns: 1fr auto; }
  .work-list article span { grid-column: 1; }
  .work-list article em { grid-column: 2; grid-row: 1 / span 2; }
  .community-layout { grid-template-columns: 1fr; }
  .community blockquote { min-height: 270px; padding: 32px; }
  .community blockquote p { font-size: 18px; }
  .discussion-list article { grid-template-columns: 38px 1fr; }
  .discussion-list em { grid-column: 2; }
  .screenshot-track {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    overflow: visible;
    padding-bottom: 0;
  }
  .screenshot-track figure {
    width: 100%;
    height: auto;
  }
  .screenshot-image { aspect-ratio: 9 / 16; }
  .screenshot-track figcaption {
    gap: 7px;
    min-height: 56px;
    padding: 10px 9px;
  }
  .screenshot-track figcaption strong { font-size: 13px; }
  .download-console { display: block; border-radius: 20px; }
  .download-brand, .download-copy { padding: 23px; border-right: 0; border-bottom: 1px solid var(--line); }
  .download-link { min-height: 68px; }
  .footer-inner { display: flex; flex-direction: column; justify-content: center; text-align: center; }
  .footer-links { justify-content: center; gap: 18px; }
  .back-to-top { right: 14px; bottom: 14px; }
}

@media (max-width: 380px) {
  .brand-copy small { display: none; }
  .mobile-download { padding-right: 9px; padding-left: 9px; }
  .hero-points span { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}