:root {
  --blue: #00b4ff;
  --blue-d: #0066ff;
  --neon: #3ddcff;
  --ink: #0b1220;
  --muted: #5a6a80;
  --paper: #f4f8fc;
  --glass: rgba(255, 255, 255, 0.58);
  --glass-strong: rgba(255, 255, 255, 0.82);
  --line: rgba(0, 180, 255, 0.38);
  --max: 1100px;
  --foot-min: 1180px;
  --glow: 0 0 18px rgba(0, 180, 255, 0.35), 0 0 0 1px rgba(61, 220, 255, 0.45);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(0, 180, 255, 0.12), transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(0, 102, 255, 0.08), 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 { 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: 0.28em; color: var(--blue-d); text-transform: uppercase; }
.h2 { margin: 8px 0 22px; font-size: 28px; font-weight: 800; letter-spacing: 0.02em; }
.lead { max-width: 640px; color: var(--muted); }
.section { padding: 88px 0; position: relative; }
.section .wrap { z-index: 1; }
.v-title {
  position: absolute;
  left: 18px;
  top: 88px;
  writing-mode: vertical-rl;
  letter-spacing: 0.42em;
  font-size: 13px;
  color: rgba(0, 102, 255, 0.28);
  pointer-events: none;
  font-weight: 700;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  box-shadow: var(--glow), 0 18px 40px rgba(11, 18, 32, 0.06);
}
.neon {
  box-shadow: var(--glow);
  border: 1px solid rgba(61, 220, 255, 0.55);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--neon), var(--blue-d));
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  box-shadow: 0 0 22px rgba(0, 180, 255, 0.45);
}
.btn:hover { filter: brightness(1.06); }
.btn-ghost {
  background: var(--glass-strong);
  color: var(--ink);
  box-shadow: var(--glow);
}

.index-top {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 100%;
  background: rgba(244, 248, 252, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 0 24px rgba(0, 180, 255, 0.12);
}
.top-inner {
  width: var(--max);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 68px;
}
.logo img { width: 118px; display: block; }
.main-nav { display: flex; align-items: center; gap: 18px; font-size: 13px; font-weight: 600; }
.main-nav a { color: var(--ink); opacity: 0.82; }
.main-nav a:hover, .drop:hover > a { opacity: 1; color: var(--blue-d); }
.drop { position: relative; }
.drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: -12px;
  min-width: 180px;
  padding: 10px;
  border-radius: 16px;
}
.drop:hover .drop-menu { display: block; }
.drop-menu a { display: block; padding: 8px 10px; border-radius: 10px; font-weight: 500; }
.drop-menu a:hover { background: rgba(0, 180, 255, 0.1); }
.top-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; font-size: 12px; }
.top-cta .link { color: var(--muted); font-weight: 700; padding: 0 6px; }
.top-cta .link:hover { color: var(--blue-d); }
.top-cta .btn { min-height: 34px; padding: 0 14px; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 70px;
  overflow: hidden;
}
.globe {
  position: absolute;
  left: 50%;
  top: 6%;
  width: 760px;
  height: 760px;
  margin-left: -380px;
  opacity: 0.18;
  z-index: 0;
}
.spin { transform-origin: 200px 200px; animation: spin 48s 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(244, 248, 252, 0.1), rgba(0, 102, 255, 0.08));
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 1.1fr 0.85fr;
  gap: 22px;
  align-items: center;
}
.hero-copy .float-banner {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
}
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 900; line-height: 1.18; }
.hero .sub { margin: 0 0 22px; font-size: 17px; color: var(--blue-d); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-shot {
  position: relative;
  min-height: 340px;
  border-radius: 24px;
  overflow: hidden;
  padding: 18px;
}
.hero-shot .pc {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: var(--glow);
}
.hero-shot .phone {
  position: absolute;
  width: 112px;
  height: 210px;
  object-fit: cover;
  right: 22px;
  bottom: 18px;
  border-radius: 18px;
  box-shadow: var(--glow);
  border: 1px solid var(--line);
}
.hero-data {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  border-radius: 24px;
}
.stat-row { display: flex; align-items: center; gap: 12px; }
.stat-row strong { font-size: 22px; color: var(--blue-d); }
.stat-row span { font-size: 12px; color: var(--muted); }

.rings {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.ring {
  text-align: center;
  padding: 22px 10px;
  border-radius: 20px;
}
.ring svg { width: 108px; height: 108px; }
.ring b { display: block; margin-top: 8px; font-size: 20px; color: var(--blue-d); }
.ring em { font-style: normal; font-size: 12px; color: var(--muted); }

.orbit-stage {
  position: relative;
  height: 560px;
  max-width: 760px;
  margin: 0 auto;
}
.orbit-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 168px;
  height: 168px;
  margin: -84px 0 0 -84px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.orbit-core img { width: 108px; }
.orbit-item {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 210px;
  margin: -88px 0 0 -105px;
  padding: 14px;
  border-radius: 20px;
  text-align: center;
  transform: rotate(calc(var(--i) * 90deg)) translate(210px) rotate(calc(var(--i) * -90deg));
}
.orbit-item img.illust { width: 200px; height: 176px; object-fit: cover; border-radius: 14px; }
.orbit-item h3 { margin: 10px 0 6px; font-size: 16px; }
.orbit-item p { margin: 0; font-size: 13px; color: var(--muted); }

.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-radius: 16px;
  box-shadow: var(--glow);
}
.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; }

.feature-band { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center; }
.feature-band img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--glow);
}
.feature-band.reverse { grid-template-columns: 0.9fr 1.1fr; }
.feature-band.reverse img { order: -1; }

.icon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.icon-cell {
  padding: 18px 16px;
  border-radius: 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(--blue-d);
  cursor: pointer;
  font-weight: 700;
}

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  padding: 20px;
  border-radius: 16px;
}
.card.private { border-radius: 16px; }
.tile-shot {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 12px;
  margin-top: 12px;
}
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.quote-hero {
  text-align: center;
  padding: 48px 40px;
  border-radius: 28px;
}
.quote-hero p {
  margin: 0 auto 16px;
  max-width: 760px;
  font-size: 32px;
  line-height: 1.45;
  font-weight: 800;
}
.quote-hero strong { color: var(--blue-d); letter-spacing: 0.12em; font-size: 13px; }

.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;
  border-radius: 16px;
  flex: 0 0 auto;
}
.quote-card p { margin: 0 0 8px; }
.quote-card strong { font-size: 12px; color: var(--blue-d); }

.price-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  border-radius: 999px;
  flex-wrap: wrap;
}
.price-bar .plat { font-size: 13px; font-weight: 700; padding: 6px 0; }
.price-bar .btn { margin-left: auto; }
.plat-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.plat-tabs button {
  min-height: 36px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  cursor: pointer;
}
.plat-tabs button.is-on {
  background: linear-gradient(135deg, var(--neon), var(--blue-d));
  color: #fff;
  box-shadow: var(--glow);
}
.plat-pane { display: none; }
.plat-pane.is-on { display: block; }
.platforms { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.platforms .plat {
  padding: 10px 18px;
  border-radius: 999px;
}

.faq-split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 22px; min-height: 280px; }
.faq-list li {
  padding: 14px 16px;
  border-radius: 14px;
  margin-bottom: 8px;
  cursor: pointer;
  font-weight: 700;
}
.faq-list li.is-on {
  background: linear-gradient(135deg, rgba(0, 180, 255, 0.16), rgba(0, 102, 255, 0.08));
  box-shadow: var(--glow);
}
.faq-panel { padding: 28px; border-radius: 20px; min-height: 240px; }
.faq-panel article { display: none; }
.faq-panel article.is-on { display: block; }
.faq-panel p { color: var(--muted); }

.acc { margin-bottom: 10px; border-radius: 16px; overflow: hidden; }
.acc-btn {
  width: 100%;
  text-align: left;
  min-height: 52px;
  padding: 0 18px;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.acc-panel { display: none; padding: 0 18px 18px; }
.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-radius: 12px; }
.article p { color: var(--muted); }
.oa-banner {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 20px;
  margin: 16px 0;
  box-shadow: var(--glow);
}
.crumbs { padding: 96px 0 8px; font-size: 12px; color: var(--muted); }
.page-hero { padding-bottom: 20px; }
.page-hero h1 { font-size: 36px; margin: 8px 0 12px; }

.site-foot {
  background: #f7f8f8;
  min-width: var(--foot-min);
  padding: 48px 0 28px;
  border-top: 1px solid var(--line);
}
.foot-inner { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-brand { display: flex; align-items: center; gap: 28px; margin-bottom: 28px; flex-wrap: wrap; }
.foot-logo { width: 168px; }
.subscribe {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 280px;
}
.subscribe input {
  flex: 1;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 0 16px;
  background: #fff;
  box-shadow: var(--glow);
}
.subscribe button {
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--neon), var(--blue-d));
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}
.foot-nav { display: grid; grid-template-columns: repeat(5, 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; }
.legal { margin: 24px 0 0; font-size: 12px; color: var(--muted); }

@media (max-width: 1100px) {
  .hero-grid, .faq-split, .feature-band, .feature-band.reverse, .rings, .cards-3, .icon-grid, .foot-nav {
    grid-template-columns: 1fr;
  }
  .orbit-stage { height: auto; }
  .orbit-item { position: relative; left: auto; top: auto; margin: 0 auto 12px; transform: none; }
  .orbit-core { position: relative; left: auto; top: auto; margin: 0 auto 18px; }
  .sell-item { float: none; width: 100%; margin: 0 0 18px; }
  .hero-shot .phone { position: static; margin-top: 12px; }
  .v-title { display: none; }
  .main-nav { display: none; }
  .site-foot { min-width: 0; }
}