:root {
  --silver: #e8eaee;
  --metal: #a8aeb8;
  --ink: #0e1116;
  --muted: #5c636e;
  --card: #f4f5f7;
  --max: 1100px;
  --foot-min: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--silver);
  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; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

.haze {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 12% 8%, rgba(255, 255, 255, 0.7), transparent 40%),
    radial-gradient(ellipse at 88% 82%, rgba(14, 17, 22, 0.12), 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); text-transform: uppercase; }
.h2 {
  margin: 8px 0 18px;
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(100deg, #0e1116 10%, #6d7786 55%, #0e1116 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.lead { max-width: 640px; color: var(--muted); }

.lift {
  background: var(--card);
  border-radius: 22px;
  box-shadow: 0 10px 28px rgba(14, 17, 22, 0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}
.lift:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(14, 17, 22, 0.14); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--ink);
  color: #f4f5f7;
  cursor: pointer;
}
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px rgba(14, 17, 22, 0.18); }

.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: #fff;
  z-index: 50;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(14, 17, 22, 0.12);
}
.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;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 8px;
  border-radius: 22px;
  background: rgba(244, 245, 247, 0.86);
  box-shadow: 0 12px 28px rgba(14, 17, 22, 0.12);
}
.rail a {
  width: 46px;
  min-height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  text-align: center;
  line-height: 1.2;
  color: var(--muted);
}
.rail a:hover, .rail a.is-on { background: var(--ink); color: #fff; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 0;
  overflow: hidden;
  background: #cfd4db;
}
.globe { position: absolute; right: -80px; bottom: -140px; width: 560px; height: 560px; opacity: 0.22; 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, 238, 0.08), rgba(14, 17, 22, 0.28));
}
.hero-split {
  position: relative;
  z-index: 3;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
}
.hero-left {
  background: var(--ink);
  color: #f4f5f7;
  padding: 128px 8% 72px;
}
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 6% 56px;
}
.float-banner { display: inline-block; margin-bottom: 14px; font-size: 12px; letter-spacing: 0.16em; color: var(--metal); }
.hero h1 {
  margin: 0 0 10px;
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(100deg, #ffffff 0%, #a8aeb8 55%, #ffffff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.hero .sub { margin: 0 0 24px; font-size: 18px; color: rgba(244, 245, 247, 0.72); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-right img { width: 100%; max-width: 480px; border-radius: 28px; box-shadow: 0 24px 48px rgba(14, 17, 22, 0.28); background: #b8bcc4; }

.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: #c5c9d0; border-radius: 22px; }
.sell-item h3 { margin: 0 0 6px; font-size: 16px; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 13px; }

.honey { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 860px; margin: 0 auto; }
.hex {
  width: 168px;
  height: 184px;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  background: #f4f5f7;
  box-shadow: 0 10px 24px rgba(14, 17, 22, 0.1);
  text-align: center;
  padding: 42px 16px 16px;
  font-size: 13px;
}
.hex img { width: 56px; height: 44px; object-fit: cover; border-radius: 8px; margin-bottom: 8px; background: #c5c9d0; }
.hex strong { display: block; font-size: 14px; }
.shot { width: 100%; max-width: 720px; margin: 22px auto 0; display: block; object-fit: contain; background: #c5c9d0; border-radius: 22px; box-shadow: 0 16px 36px rgba(14, 17, 22, 0.1); }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.icon-cell { padding: 18px 14px; min-height: 118px; border-radius: 22px; }
.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; background: none; color: var(--muted); }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; border-radius: 22px; }

.ticker { overflow: hidden; background: var(--ink); color: #f4f5f7; border-radius: 999px; padding: 14px 0; }
.ticker-track { display: flex; gap: 40px; width: max-content; animation: tick 22s linear infinite; font-size: 18px; letter-spacing: 0.08em; }
@keyframes tick { to { transform: translateX(-50%); } }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; }
.card.private { border-radius: 16px; border: 1px solid rgba(14, 17, 22, 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; border-radius: 14px; }

.media-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.media-wall img { width: 100%; height: 64px; object-fit: cover; filter: grayscale(1); opacity: 0.72; border-radius: 12px; background: #c5c9d0; }

.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: #f4f5f7; font-size: 13px; color: var(--muted); border-radius: 22px; box-shadow: 0 8px 20px rgba(14, 17, 22, 0.06); }
.quote-card strong { display: block; margin-top: 10px; color: var(--ink); font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.stairs { display: flex; align-items: flex-end; gap: 12px; min-height: 240px; }
.stair { flex: 1; padding: 18px; border-radius: 22px 22px 8px 8px; background: #f4f5f7; box-shadow: 0 12px 28px rgba(14, 17, 22, 0.08); }
.stair:nth-child(1) { min-height: 140px; }
.stair:nth-child(2) { min-height: 180px; }
.stair:nth-child(3) { min-height: 220px; }
.stair:nth-child(4) { min-height: 260px; }
.stair h3 { margin: 0 0 8px; font-size: 16px; }
.stair p { margin: 0; color: var(--muted); font-size: 13px; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.plat { text-align: center; padding: 14px 8px; border-radius: 999px; background: #f4f5f7; box-shadow: 0 8px 18px rgba(14, 17, 22, 0.06); }

.faq-tabs { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.faq-tabs button { padding: 8px 16px; border-radius: 999px; background: #f4f5f7; color: var(--muted); }
.faq-tabs button.is-on { background: var(--ink); color: #fff; }
.acc .item { border-bottom: 1px solid rgba(14, 17, 22, 0.08); }
.acc button { display: block; width: 100%; text-align: left; padding: 14px 4px; background: none; font-size: 16px; }
.acc .panel { display: none; padding: 0 4px 14px; color: var(--muted); font-size: 14px; }
.acc .item.is-on .panel { display: block; }
.acc .item.is-hide { display: none; }

.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;
  background: linear-gradient(100deg, #0e1116, #6d7786);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
body.sub .index-top { position: relative; background: rgba(232, 234, 238, 0.94); }
body.sub .crumbs { padding-top: 12px; }

.site-foot { background: transparent; min-width: var(--foot-min); padding: 24px 0 32px; }
.foot-center {
  width: var(--foot-min);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  background: #f7f8f8;
  border-radius: 28px;
  padding: 36px 28px 20px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(14, 17, 22, 0.08);
}
.foot-nav { display: flex; justify-content: space-between; gap: 16px; margin: 18px 0; text-align: left; }
.foot-nav h4 { margin: 0 0 8px; color: var(--ink); font-size: 13px; }
.foot-nav a { display: block; padding: 3px 0; font-size: 13px; color: #6a6560; }
.legal { font-size: 12px; color: #828282; max-width: 760px; margin: 0 auto; text-align: center; }

@media (max-width: 1180px) { .site-foot, .foot-center { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .hero-split, .cards-3, .stairs, .media-wall { grid-template-columns: 1fr; }
  .media-wall { grid-template-columns: 1fr 1fr 1fr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .rail { display: none; }
  .foot-nav { flex-wrap: wrap; }
  .hero-split { grid-template-columns: 1fr; min-height: 0; }
  .hero-left, .hero-right { padding: 96px 24px 40px; }
}
@media (max-width: 770px) {
  .nav-main, .top-cta .link { display: none; }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
}