@charset "UTF-8";

:root {
  --blue: #3478f6;
  --ink: #0f1a2e;
  --lemon: #ffe56a;
  --cream: #f3f7ff;
  --paper: #ffffff;
  --mute: #5d6b82;
  --line: rgba(15, 26, 46, 0.1);
  --nav-shadow: 2px 2px 0 rgba(15, 26, 46, 0.28);
  --lift: 0 18px 40px rgba(52, 120, 246, 0.16);
  --header-h: 76px;
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  min-width: 320px;
  padding-top: var(--header-h);
  color: var(--ink);
  background: var(--cream);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
p, h1, h2, h3, figure { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.frame { width: min(calc(100% - 40px), var(--content)); margin: 0 auto; }

.topbar {
  position: fixed; z-index: 1000; top: 0; right: 0; left: 0; height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.topbar-frame { display: flex; height: 100%; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand img { width: 48px; height: 48px; object-fit: contain; background: #fff; box-shadow: var(--nav-shadow); }
.brand span { display: grid; line-height: 1.2; }
.brand strong { font-size: 18px; }
.brand small { color: var(--mute); font-size: 12px; }
.main-menu ul { display: flex; gap: 26px; }
.main-menu a { position: relative; display: block; padding: 26px 0 22px; font-size: 14px; font-weight: 700; }
.main-menu a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 14px; height: 3px;
  background: var(--blue); transform: scaleX(0);
}
.main-menu a:hover, .main-menu a.current { color: var(--blue); }
.main-menu a:hover::after, .main-menu a.current::after { transform: scaleX(1); }
.header-get, .mobile-get, .get-btn, .opening-action a {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 42px; padding: 0 18px;
  background: var(--blue); color: #fff;
  font-weight: 800; box-shadow: var(--nav-shadow);
}
.header-get:hover, .opening-action a:hover, .get-btn:hover { background: #1f63e0; }
.mobile-controls { display: none; align-items: center; gap: 8px; }
.nav-switch { width: 42px; height: 42px; display: grid; place-content: center; gap: 5px; border: 1px solid var(--line); }
.nav-switch i { display: block; width: 18px; height: 2px; background: var(--ink); }

.opening {
  background:
    repeating-linear-gradient(-12deg, rgba(52,120,246,.05) 0 14px, transparent 14px 28px),
    var(--cream);
}
.opening-frame {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 48px;
  align-items: center;
  min-height: 680px;
  padding: 56px 0;
}
.overline { color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: 0.18em; }
.opening h1 { margin-top: 8px; font-size: clamp(44px, 6vw, 72px); line-height: 1; }
.opening-kicker { margin-top: 12px; font-size: 22px; font-weight: 800; }
.opening-lead { max-width: 36em; margin-top: 16px; color: var(--mute); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.pills button {
  min-height: 40px; padding: 0 14px;
  background: #fff; border: 1px solid var(--ink); font-weight: 800;
}
.pills .is-on { background: var(--lemon); border-color: var(--ink); }
.pill-note { margin-top: 10px; color: var(--blue); font-size: 13px; font-weight: 800; }
.opening-action { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 24px; }
.opening-action a { min-width: 190px; padding: 14px 24px; }
.opening-action span { color: var(--mute); font-size: 12px; }

.vitrine {
  position: relative;
  padding: 28px 24px 32px;
  background: var(--blue);
  box-shadow: var(--lift);
}
.vitrine::before {
  content: "";
  position: absolute; inset: 12px;
  border: 1px dashed rgba(255,255,255,.35);
  pointer-events: none;
}
.phone {
  position: relative; z-index: 1;
  width: min(280px, 78%);
  margin: 0 auto;
  padding: 12px 10px 14px;
  background: #0f1a2e;
  box-shadow: 0 24px 40px rgba(15,26,46,.35);
}
.phone b { display: block; width: 62px; height: 7px; margin: 0 auto 10px; border-radius: 99px; background: #3a4a66; }
.phone img { width: 100%; height: auto; max-height: 420px; object-fit: contain; background: #000; }
.float {
  position: absolute; z-index: 2;
  padding: 12px 14px;
  background: #fff;
  box-shadow: var(--nav-shadow);
  font-size: 13px; font-weight: 800;
}
.float small { display: block; color: var(--blue); font-size: 11px; letter-spacing: .12em; }
.float.a { left: -8px; top: 28px; }
.float.b { right: -6px; bottom: 36px; background: var(--lemon); }
.phone { animation: rise 5.2s ease-in-out infinite; }

.mosaic-wrap { padding: 84px 0; background: #fff; }
.block-head { margin-bottom: 24px; }
.block-head p { color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.block-head.invert p { color: var(--lemon); }
.block-head h2 { margin-top: 8px; font-size: clamp(28px, 4vw, 40px); }
.mosaic {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}
.mosaic article { padding: 28px 26px; min-height: 170px; }
.mosaic .wide {
  grid-row: 1 / span 2;
  background: var(--ink); color: #fff;
}
.mosaic .m2 { background: var(--lemon); }
.mosaic .m3 { background: var(--blue); color: #fff; }
.mosaic span { display: block; margin-bottom: 10px; font-size: 12px; font-weight: 900; letter-spacing: .14em; }
.mosaic .wide span, .mosaic .m3 span { color: var(--lemon); }
.mosaic p { margin-top: 8px; }
.mosaic .wide p { color: #c9d4e8; }
.mosaic .m3 p { color: #e8f0ff; }
.mosaic article:hover { transform: translateY(-6px); }

.stories { padding: 84px 0; background: var(--ink); color: #fff; }
.stories .block-head h2 { color: #fff; }
.rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.rail figure {
  margin: 0;
  padding: 12px 10px 14px;
  background: #18233a;
  box-shadow: var(--lift);
}
.progress { display: flex; gap: 4px; margin-bottom: 10px; }
.progress i { flex: 1; height: 3px; background: rgba(255,255,255,.2); }
.progress i:first-child { background: var(--lemon); }
.rail .bezel { padding: 8px 6px 10px; background: #0b1220; }
.rail .bezel::before {
  content: ""; display: block; width: 44px; height: 6px;
  margin: 0 auto 8px; border-radius: 99px; background: #3a4a66;
}
.rail img { width: 100%; height: auto; max-height: 320px; object-fit: contain; background: #000; }
.rail figcaption { margin-top: 10px; font-size: 13px; font-weight: 800; color: #c9d4e8; }
.rail figure:hover { transform: translateY(-6px); }

.faq { padding: 84px 0; background: var(--cream); }
.board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.board article {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  padding: 22px 20px;
  background: #fff;
  box-shadow: var(--lift);
}
.board b {
  display: grid; place-items: center;
  width: 52px; height: 52px;
  background: var(--blue); color: #fff;
  font-size: 14px; font-weight: 900;
}
.board article:nth-child(even) b { background: var(--ink); color: var(--lemon); }
.board h3 { font-size: 18px; }
.board p { margin-top: 8px; color: var(--mute); }
.board article:hover { transform: translateY(-4px); }

.reviews { padding: 84px 0 36px; background: #fff; }
.feed { display: grid; gap: 16px; }
.feed article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  padding: 18px 18px 16px;
  background: var(--cream);
  border-left: 6px solid var(--blue);
}
.feed article:first-child { border-left-color: var(--lemon); background: #fff8d6; }
.av {
  display: grid; place-items: center;
  width: 48px; height: 48px;
  background: var(--ink); color: var(--lemon);
  font-weight: 900;
}
.feed time { color: var(--mute); font-size: 12px; font-weight: 800; }
.feed p { margin-top: 6px; }
.feed span { display: block; margin-top: 8px; color: var(--mute); font-size: 12px; font-weight: 800; }

.download { padding: 12px 0 88px; background: var(--cream); }
.banner {
  padding: 40px 40px 36px;
  background: var(--blue); color: #fff;
  box-shadow: var(--lift);
}
.banner small { display: block; margin-bottom: 8px; color: var(--lemon); font-weight: 900; letter-spacing: .16em; }
.banner h2 { font-size: clamp(26px, 3vw, 36px); }
.banner p { max-width: 42ch; margin: 10px 0 18px; color: #e4edff; }
.banner .get-btn { background: var(--lemon); color: var(--ink); }
.banner .get-btn:hover { background: #fff1a0; }

.site-footer { padding: 34px 0 18px; background: var(--ink); color: #d5deee; }
.footer-shell { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.footer-shell .brand strong { color: #fff; }
.footer-shell .brand small { color: #9aacc4; }
.footer-shell nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; font-weight: 800; }
.footer-shell nav a:hover { color: var(--lemon); }
.copy { width: min(calc(100% - 40px), var(--content)); margin: 14px auto 0; color: #7d8ba3; font-size: 12px; }

.back-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 60; width: 46px; height: 46px;
  display: grid; place-items: center; visibility: hidden; opacity: 0;
  background: var(--blue); box-shadow: var(--nav-shadow);
}
.back-top::before {
  content: ""; width: 12px; height: 12px;
  border-left: 2px solid #fff; border-top: 2px solid #fff;
  transform: translateY(3px) rotate(45deg);
}
.back-top.is-visible { visibility: visible; opacity: 1; }

@keyframes rise {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (max-width: 980px) {
  .header-get { display: none; }
  .mobile-controls { display: flex; }
  .main-menu { position: fixed; top: var(--header-h); right: 0; left: 0; display: none; background: #fff; }
  .main-menu.is-open { display: block; }
  .main-menu ul { flex-direction: column; gap: 0; padding: 8px 20px 16px; }
  .main-menu a { padding: 12px 0; }
  .opening-frame { display: flex; flex-direction: column; gap: 28px; min-height: 0; padding: 40px 0; }
  .opening-copy { text-align: center; }
  .opening-lead, .opening-action { margin-inline: auto; align-items: center; }
  .pills { justify-content: center; }
  .float.a, .float.b { position: static; display: inline-block; margin: 8px 6px 0; }
  .vitrine { text-align: center; }
  .mosaic, .board, .footer-shell { grid-template-columns: 1fr; }
  .mosaic .wide { grid-row: auto; }
  .rail {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    padding-bottom: 10px;
  }
  .rail figure {
    flex: 0 0 min(72vw, 260px);
    scroll-snap-align: start;
  }
  .opening-action a, .get-btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .phone, .mosaic article, .rail figure, .board article { animation: none; transform: none !important; }
}