:root {
  --ash: #d8dbe0;
  --fog: #eceef1;
  --ink: #2a2d32;
  --muted: #6b7078;
  --glass: rgba(255, 255, 255, 0.32);
  --max: 1100px;
  --foot-min: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--ash);
  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 { font-family: inherit; border: 0; background: none; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

.fog {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 18% 12%, rgba(255, 255, 255, 0.45), transparent 42%),
    radial-gradient(ellipse at 86% 80%, rgba(90, 96, 104, 0.18), transparent 46%);
}

.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; position: relative; z-index: 1; }
.kicker { font-size: 12px; letter-spacing: 0.2em; color: var(--muted); }
.h2 { margin: 8px 0 18px; font-size: 28px; font-weight: 600; }
.lead { max-width: 640px; color: var(--muted); }

.vtitle {
  writing-mode: vertical-rl;
  letter-spacing: 0.28em;
  font-size: 13px;
  color: var(--muted);
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 4px;
  background: var(--ink);
  color: #f4f5f6;
  cursor: pointer;
}
.btn-ghost { background: transparent; color: var(--ink); }

.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: 12px;
  min-height: 64px;
}
.logo img { width: 118px; display: block; }
.nav-main { display: flex; align-items: center; gap: 16px; flex: 1; justify-content: center; font-size: 13px; }
.nav-main > li { position: relative; }
.mega {
  display: none;
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.88);
  z-index: 50;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
}
.has-mega:hover .mega, .has-mega:focus-within .mega { display: grid; }
.mega h4 { margin: 0 0 8px; font-size: 12px; }
.mega a { display: block; padding: 4px 0; color: var(--muted); }
.top-cta { display: flex; gap: 10px; align-items: center; }
.top-cta .link { font-size: 12px; }

.rail {
  position: fixed;
  top: 22%;
  z-index: 35;
  width: 48px;
  padding: 16px 0;
}
.rail-l { left: 10px; }
.rail-r { right: 10px; }
.rail a, .rail span {
  display: block;
  writing-mode: vertical-rl;
  padding: 8px 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.rail a:hover, .rail a.is-on { color: var(--ink); }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 72px;
  overflow: hidden;
  background: #c5c9cf;
}
.globe { position: absolute; right: -80px; bottom: -120px; width: 520px; height: 520px; opacity: 0.28; z-index: 1; }
.spin { transform-origin: 200px 200px; animation: spin 50s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-mask {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: radial-gradient(ellipse at 30% 40%, rgba(232, 234, 237, 0.12), rgba(42, 45, 50, 0.28));
}
.hero-dual { position: relative; z-index: 3; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; align-items: center; }
.float-banner { display: inline-block; margin-bottom: 14px; font-size: 12px; letter-spacing: 0.16em; }
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 600; }
.hero .sub { margin: 0 0 24px; font-size: 18px; color: rgba(42, 45, 50, 0.72); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-side { display: flex; flex-direction: column; gap: 10px; }
.hero-side article { padding: 18px 20px; }
.hero-side h3 { margin: 0 0 6px; font-size: 16px; }
.hero-side p { margin: 0 0 10px; color: var(--muted); font-size: 13px; }

.section { padding: 80px 0; position: relative; z-index: 1; }
.sell-row { overflow: hidden; margin-left: -6.88%; }
.sell-item { float: left; width: 18.11%; margin-left: 6.88%; text-align: center; }
.illust { width: 200px; height: 176px; margin: 0 auto 12px; object-fit: cover; display: block; background: #b8bcc2; }
.sell-item h3 { margin: 0 0 6px; font-size: 16px; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 13px; }

.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(42, 45, 50, 0.12);
}
.t-item { position: relative; margin-bottom: 72px; display: flex; gap: 24px; align-items: flex-start; }
.t-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
}
.t-body { flex: 1; }
.t-row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; }
.t-row figure { width: 30%; min-width: 180px; margin: 0; }
.t-row img { width: 100%; height: 110px; object-fit: cover; background: #b8bcc2; }
.t-row figcaption { font-size: 13px; color: var(--muted); margin-top: 6px; }
.shot { width: 100%; max-width: 720px; margin: 18px 0 0; display: block; object-fit: contain; background: #b8bcc2; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.icon-cell { padding: 18px 14px; min-height: 118px; background: var(--glass); }
.icon-cell strong { display: block; margin-bottom: 6px; }
.icon-cell span { color: var(--muted); font-size: 13px; }
.more-box { display: none; margin-top: 8px; }
.more-box.is-on { display: grid; }
.fold-btn { display: block; margin: 20px auto 0; color: var(--muted); cursor: pointer; }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; }

.rings { display: flex; justify-content: space-around; gap: 16px; flex-wrap: wrap; }
.ring {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: conic-gradient(var(--ink) calc(var(--p) * 1%), rgba(42, 45, 50, 0.12) 0);
  -webkit-mask: radial-gradient(circle at 50% 50%, transparent 42px, #000 43px);
  mask: radial-gradient(circle at 50% 50%, transparent 42px, #000 43px);
  margin: 0 auto 8px;
}
.ring-box { text-align: center; width: 150px; }
.ring-box p { margin: 0; font-size: 13px; color: var(--muted); }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; background: var(--glass); }
.card.private { border-radius: 16px; border: 1px solid rgba(42, 45, 50, 0.08); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.tile-shot { width: 100%; height: 128px; object-fit: cover; object-position: top; margin-top: 12px; }

.quote-xl { text-align: center; max-width: 760px; margin: 0 auto 28px; font-size: 28px; line-height: 1.5; font-weight: 600; }
.quote-xl cite { display: block; margin-top: 12px; font-size: 13px; font-style: normal; color: var(--muted); font-weight: 400; }

.marquee { overflow: hidden; padding: 12px 0; }
.track { display: flex; gap: 10px; width: max-content; animation: marquee 90s linear infinite; }
.quote-card { flex: 0 0 228px; padding: 16px; background: var(--glass); font-size: 13px; color: var(--muted); }
.quote-card strong { display: block; margin-top: 10px; color: var(--ink); font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.split-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.split-2 article { padding: 28px; min-height: 200px; background: var(--glass); }
.split-2 h3 { margin: 0 0 8px; font-size: 22px; }
.split-2 p { margin: 0 0 16px; color: var(--muted); }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.plat { text-align: center; padding: 14px 8px; background: var(--glass); }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq-card { padding: 20px; background: var(--glass); min-height: 140px; }
.faq-card h3 { margin: 0 0 8px; font-size: 16px; }
.faq-card p { margin: 0; color: var(--muted); font-size: 14px; }

.article { max-width: 740px; }
.article p { margin: 0 0 16px; color: var(--muted); }
.article h2 { margin: 26px 0 10px; font-size: 22px; }
.crumbs { padding: 88px 0 0; font-size: 12px; color: var(--muted); }
.page-hero { padding: 18px 0 36px; }
.page-hero h1 { margin: 8px 0 12px; font-size: 32px; }
body.sub .index-top { position: relative; background: rgba(216, 219, 224, 0.92); }
body.sub .crumbs { padding-top: 12px; }

.site-foot { background: #f7f8f8; min-width: var(--foot-min); padding: 40px 0 24px; color: #6a6560; }
.foot-inner { width: var(--foot-min); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-nav { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.foot-nav h4 { margin: 0 0 8px; color: var(--ink); font-size: 13px; }
.foot-nav a { display: block; padding: 3px 0; font-size: 13px; }
.legal { font-size: 12px; color: #828282; max-width: 820px; }

@media (max-width: 1180px) { .site-foot, .foot-inner { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .hero-dual, .cards-3, .split-2, .faq-grid { grid-template-columns: 1fr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .t-item { flex-direction: column; }
  .t-row figure { width: 100%; }
  .rail { display: none; }
  .foot-nav { flex-wrap: wrap; }
}
@media (max-width: 770px) {
  .nav-main, .top-cta .link { display: none; }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
}