:root {
  --haze: #7a8ea8;
  --haze-d: #4a5c73;
  --haze-l: #d5dde8;
  --metal: #c5ced8;
  --ink: #243040;
  --muted: #5d6b7a;
  --warm: #f7f1e8;
  --paper: #eef2f6;
  --max: 1100px;
  --foot-min: 1180px;
  --comic: 3px solid #243040;
  --offset: 5px 5px 0 #243040;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 10%, rgba(122, 142, 168, 0.22), transparent 42%),
    radial-gradient(circle at 88% 86%, rgba(247, 241, 232, 0.7), transparent 46%),
    var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
}
img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; position: relative; }
.kicker { font-size: 12px; letter-spacing: 0.18em; color: var(--haze-d); text-transform: uppercase; }
.h2 { margin: 8px 0 22px; font-size: 28px; font-weight: 900; }
.h2 small { display: block; font-size: 13px; font-weight: 600; color: var(--haze); letter-spacing: 0.12em; margin-top: 4px; }
.lead { max-width: 640px; color: var(--muted); }
.section { padding: 78px 0; }
.metal {
  background: linear-gradient(145deg, rgba(255,255,255,0.72), rgba(197,206,216,0.55));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: var(--comic);
  border-radius: 14px;
  box-shadow: var(--offset);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: var(--comic);
  border-radius: 12px;
  background: linear-gradient(180deg, #f7f1e8, #e4d6c2);
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
  box-shadow: var(--offset);
}
.btn-ghost { background: linear-gradient(180deg, #fff, var(--haze-l)); }
.btn-xl { min-height: 64px; padding: 0 42px; font-size: 20px; }

.index-top { position: absolute; top: 0; left: 0; z-index: 40; width: 100%; }
.top-inner {
  width: var(--max);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 70px;
}
.logo img { width: 118px; display: block; border: var(--comic); border-radius: 10px; background: #fff; }
.main-nav { display: flex; align-items: center; gap: 14px; font-size: 13px; font-weight: 800; }
.mega { position: relative; }
.mega-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 560px;
  padding: 16px;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px 16px;
}
.mega:hover .mega-panel { display: grid; }
.mega-panel a { display: block; padding: 8px 10px; font-weight: 600; }
.mega-panel a:hover { background: var(--haze-l); }
.top-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; font-size: 12px; font-weight: 800; }
.top-cta .btn { min-height: 34px; padding: 0 12px; box-shadow: 3px 3px 0 #243040; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 130px 0 80px;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, #c9d4e2, var(--warm));
}
.globe { position: absolute; left: 50%; top: 8%; width: 760px; height: 760px; margin-left: -380px; opacity: 0.2; z-index: 0; }
.spin { transform-origin: 200px 200px; animation: spin 50s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-mask {
  position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(ellipse at 50% 40%, rgba(247,241,232,0.08), rgba(74,92,115,0.18));
}
.hero-inner { position: relative; z-index: 2; }
.float-banner {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 800;
}
.hero h1 { margin: 0 0 8px; font-size: 48px; font-weight: 900; line-height: 1.18; }
.hero h1 em { font-style: normal; display: block; font-size: 16px; color: var(--haze-d); letter-spacing: 0.16em; margin-bottom: 6px; }
.hero .sub { margin: 0 0 22px; font-size: 17px; color: var(--haze-d); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.stage { position: relative; max-width: 640px; margin: 28px auto 0; min-height: 270px; }
.stage .pc { width: 78%; height: 240px; object-fit: cover; border: var(--comic); border-radius: 12px; box-shadow: var(--offset); }
.stage .phone {
  position: absolute; right: 8%; bottom: 0; width: 112px; height: 210px; object-fit: cover;
  border: var(--comic); border-radius: 16px; box-shadow: var(--offset); background: #fff;
}

.sell-row { overflow: hidden; }
.sell-item { float: left; width: 18%; margin-right: 7%; text-align: center; }
.sell-item:last-child { margin-right: 0; }
.sell-item .illust {
  width: 200px; height: 176px; object-fit: cover; border: var(--comic); border-radius: 12px; box-shadow: var(--offset);
}
.sell-item h3 { margin: 12px 0 6px; }
.sell-item p { margin: 0; color: var(--muted); font-size: 13px; }
.sell-row::after { content: ""; display: table; clear: both; }

.matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.matrix-item { text-align: center; padding: 22px 16px; }
.matrix-item img {
  width: 96px; height: 96px; object-fit: cover; border-radius: 50%; border: var(--comic); box-shadow: var(--offset);
}
.matrix-item h3 { margin: 12px 0 6px; }
.matrix-item p { margin: 0; color: var(--muted); font-size: 13px; }

.feature-band { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; align-items: center; margin-bottom: 28px; }
.feature-band img { width: 100%; height: 240px; object-fit: cover; border: var(--comic); border-radius: 12px; box-shadow: var(--offset); }
.feature-band.reverse { grid-template-columns: 0.9fr 1.1fr; }
.feature-band.reverse img { order: -1; }

.bars { display: flex; align-items: flex-end; gap: 18px; height: 220px; padding: 16px; }
.bar { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; }
.bar i {
  display: block; width: 100%; max-width: 72px; background: linear-gradient(180deg, var(--haze-l), var(--haze));
  border: var(--comic); box-shadow: var(--offset);
}
.bar span { margin-top: 8px; font-size: 12px; font-weight: 800; text-align: center; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.icon-cell { padding: 16px; }
.icon-cell strong { display: block; margin-bottom: 4px; }
.icon-cell span { color: var(--muted); font-size: 13px; }
.more-box { display: none; margin-top: 14px; }
.more-box.is-on { display: grid; }
.fold-btn { margin-top: 16px; background: transparent; border: 0; color: var(--haze-d); cursor: pointer; font-weight: 800; }
.oa-banner { width: 100%; height: 220px; object-fit: cover; border: var(--comic); border-radius: 12px; margin: 16px 0; box-shadow: var(--offset); }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 18px; }
.card.private { border-radius: 16px; }
.tile-shot { width: 100%; height: 140px; object-fit: cover; border: var(--comic); border-radius: 10px; margin-top: 12px; }
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.marquee { overflow: hidden; }
.track { display: flex; gap: 14px; width: max-content; animation: slide 90s linear infinite; }
@keyframes slide { to { transform: translateX(-50%); } }
.quote-card { width: 240px; padding: 16px; flex: 0 0 auto; }
.quote-card p { margin: 0 0 8px; }
.quote-card strong { font-size: 12px; color: var(--haze-d); }

.download-hero { text-align: center; padding: 40px 20px; }
.plat-tabs { display: flex; gap: 8px; margin: 22px 0 16px; justify-content: center; flex-wrap: wrap; }
.plat-tabs button {
  min-height: 36px; padding: 0 16px; border-radius: 10px; border: var(--comic);
  background: #fff; cursor: pointer; font-weight: 800; box-shadow: 3px 3px 0 #243040;
}
.plat-tabs button.is-on { background: var(--haze); color: #fff; }
.plat-pane { display: none; }
.plat-pane.is-on { display: block; }
.platforms { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; justify-content: center; }
.platforms .plat { padding: 10px 18px; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.faq-card { padding: 18px; }
.faq-card h3 { margin: 0 0 8px; }
.faq-card p { margin: 0; color: var(--muted); }

.acc { margin-bottom: 10px; overflow: hidden; }
.acc-btn {
  width: 100%; text-align: left; min-height: 52px; padding: 0 18px; border: 0; background: transparent;
  cursor: pointer; font-weight: 800; display: flex; justify-content: space-between; align-items: center;
}
.acc-panel { display: none; padding: 0 18px 18px; color: var(--muted); }
.acc.is-on .acc-panel { display: block; }
.acc .row { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; align-items: center; }
.acc .row img { width: 100%; height: 160px; object-fit: cover; border: var(--comic); border-radius: 10px; }

.article p { color: var(--muted); }
.crumbs { padding: 96px 0 8px; font-size: 12px; color: var(--muted); }
.page-hero { padding-bottom: 20px; }
.page-hero h1 { font-size: 34px; margin: 8px 0 12px; font-weight: 900; }
.page-hero h1 small { display: block; font-size: 13px; color: var(--haze); letter-spacing: 0.12em; margin-top: 6px; }

.site-foot {
  background: #f7f8f8;
  min-width: var(--foot-min);
  padding: 44px 0 20px;
  border-top: var(--comic);
}
.foot-inner { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-logo { width: 132px; margin-bottom: 18px; border: var(--comic); border-radius: 10px; background: #fff; }
.foot-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.foot-nav h4 { margin: 0 0 10px; font-size: 13px; }
.foot-nav a { display: block; color: var(--muted); font-size: 13px; padding: 3px 0; }
.copy { margin: 22px 0 0; padding-top: 14px; border-top: 2px solid #243040; font-size: 12px; color: var(--muted); }
.legal { margin: 8px 0 0; font-size: 12px; color: var(--muted); }

@media (max-width: 1100px) {
  .feature-band, .feature-band.reverse, .cards-3, .faq-grid, .icon-grid, .foot-nav, .matrix, .acc .row {
    grid-template-columns: 1fr;
  }
  .sell-item { float: none; width: 100%; margin: 0 0 18px; }
  .main-nav { display: none; }
  .site-foot { min-width: 0; }
  .stage .phone { position: static; margin-top: 12px; }
}