:root {
  --ink: #121416;
  --metal: #8a9098;
  --steel: #c5c9ce;
  --fog: #e8eaed;
  --txt: #eceef1;
  --muted: #9aa0a8;
  --max: 1100px;
  --foot-min: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--txt);
  background: #1a1d21;
  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 18% 10%, rgba(197, 201, 206, 0.18), transparent 42%),
    radial-gradient(ellipse at 86% 80%, rgba(0, 0, 0, 0.35), transparent 48%);
}

.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; position: relative; z-index: 1; }
.kicker { font-size: 12px; letter-spacing: 0.22em; color: var(--metal); text-transform: uppercase; }
.h2 { margin: 6px 0 16px; font-size: 28px; font-weight: 600; color: #f4f5f6; }
.h2 em { font-style: normal; font-size: 14px; color: var(--metal); margin-left: 10px; font-weight: 400; letter-spacing: 0.08em; }
.lead { max-width: 640px; color: var(--muted); }

.frost {
  background: rgba(197, 201, 206, 0.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(197, 201, 206, 0.22);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 10px;
  color: #f4f5f6;
  background: linear-gradient(#5a6068, #2a2e34);
  box-shadow:
    0 4px 0 #0a0b0c,
    0 8px 16px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    inset 0 -2px 4px rgba(0, 0, 0, 0.35);
  cursor: pointer;
}
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 #0a0b0c, inset 0 1px 0 rgba(255,255,255,0.2); }
.btn-ghost {
  background: linear-gradient(#3a3e44, #1e2226);
  color: var(--steel);
}

.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; filter: brightness(1.15); }
.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(24, 27, 31, 0.94);
  z-index: 50;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
  border: 1px solid rgba(197, 201, 206, 0.18);
}
.has-mega:hover .mega, .has-mega:focus-within .mega { display: grid; }
.mega h4 { margin: 0 0 8px; font-size: 12px; color: var(--steel); }
.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; color: var(--steel); }

.side-nav {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  writing-mode: vertical-rl;
  letter-spacing: 0.22em;
  padding: 18px 10px;
  border-radius: 16px;
  font-size: 12px;
}
.side-nav a { display: inline-block; padding: 10px 0; color: var(--steel); }
.side-nav a:hover { color: #fff; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 108px 0 56px;
  overflow: hidden;
  background: #16191d;
  text-align: center;
}
.globe { position: absolute; left: 50%; top: 42%; width: 640px; height: 640px; margin-left: -320px; opacity: 0.18; 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 50% 30%, rgba(232, 234, 237, 0.06), rgba(10, 12, 14, 0.55));
}
.hero-inner { position: relative; z-index: 3; }
.float-banner { display: inline-block; margin-bottom: 14px; font-size: 12px; letter-spacing: 0.16em; padding: 6px 14px; border-radius: 999px; }
.hero h1 { margin: 0 0 8px; font-size: 48px; font-weight: 600; color: #fff; }
.hero .en { margin: 0 0 10px; font-size: 13px; letter-spacing: 0.18em; color: var(--metal); text-transform: uppercase; }
.hero .sub { margin: 0 0 24px; font-size: 18px; color: rgba(236, 238, 241, 0.72); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.hero-shot { width: 100%; max-width: 760px; margin: 28px auto 0; border-radius: 16px; display: block; background: #2a2e34; box-shadow: 0 24px 50px rgba(0,0,0,0.4); }

.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: #2a2e34; border-radius: 12px; }
.sell-item h3 { margin: 0 0 6px; font-size: 16px; color: #fff; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 13px; }

.block { margin-bottom: 72px; }
.g23 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.g23 article { padding: 18px; min-height: 150px; border-radius: 14px; }
.g23 img { width: 100%; height: 72px; object-fit: cover; border-radius: 8px; margin-bottom: 10px; background: #2a2e34; }
.g23 h3 { margin: 0 0 4px; font-size: 16px; color: #fff; }
.g23 p { margin: 0; font-size: 13px; color: var(--muted); }
.shot { width: 100%; max-width: 720px; margin: 18px auto 0; display: block; object-fit: contain; background: #2a2e34; border-radius: 12px; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.icon-cell { padding: 18px 14px; min-height: 118px; background: rgba(197, 201, 206, 0.1); border-radius: 12px; }
.icon-cell strong { display: block; margin-bottom: 6px; color: #fff; }
.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: 12px; }

.bars { display: flex; align-items: flex-end; gap: 18px; height: 180px; margin-top: 12px; }
.bar { width: 56px; border-radius: 8px 8px 2px 2px; background: linear-gradient(#c5c9ce, #5a6068); box-shadow: inset 0 1px 0 rgba(255,255,255,0.35); position: relative; }
.bar span { position: absolute; top: -28px; left: 50%; transform: translateX(-50%); font-size: 12px; color: var(--steel); white-space: nowrap; }
.bar b { position: absolute; bottom: -26px; left: 50%; transform: translateX(-50%); font-size: 12px; color: var(--muted); font-weight: 400; white-space: nowrap; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; background: rgba(197, 201, 206, 0.1); border-radius: 12px; }
.card.private { border-radius: 16px; border: 1px solid rgba(197, 201, 206, 0.18); }
.card h3 { margin: 0 0 8px; font-size: 18px; color: #fff; }
.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: 10px; }

.slider { overflow: hidden; }
.slide-track { display: flex; gap: 12px; width: max-content; animation: marquee 40s linear infinite; }
.slide { flex: 0 0 300px; padding: 20px; border-radius: 14px; min-height: 140px; color: var(--muted); font-size: 14px; }
.slide strong { display: block; margin-top: 10px; color: #fff; font-size: 12px; }

.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: rgba(197, 201, 206, 0.1); font-size: 13px; color: var(--muted); border-radius: 12px; }
.quote-card strong { display: block; margin-top: 10px; color: #eceef1; font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.tabs { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { padding: 8px 16px; border-radius: 10px; background: #2a2e34; color: var(--steel); }
.tabs button.is-on { background: linear-gradient(#5a6068, #2a2e34); color: #fff; box-shadow: 0 3px 0 #0a0b0c, inset 0 1px 0 rgba(255,255,255,0.22); }
.tab-panel { display: none; padding: 22px; border-radius: 14px; }
.tab-panel.is-on { display: block; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.plat { text-align: center; padding: 14px 8px; background: rgba(197, 201, 206, 0.1); border-radius: 10px; }

.bubbles { max-width: 680px; display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 86%; padding: 12px 16px; border-radius: 16px; font-size: 14px; }
.bubble.q { align-self: flex-end; background: linear-gradient(#5a6068, #2a2e34); color: #fff; border-bottom-right-radius: 4px; }
.bubble.a { align-self: flex-start; background: rgba(197, 201, 206, 0.14); color: var(--steel); border-bottom-left-radius: 4px; }

.article { max-width: 740px; }
.article p { margin: 0 0 16px; color: var(--muted); }
.article h2 { margin: 26px 0 10px; font-size: 22px; color: #fff; }
.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; color: #fff; }
body.sub .index-top { position: relative; background: rgba(18, 20, 22, 0.94); }
body.sub .crumbs { padding-top: 12px; }

.site-foot { background: transparent; min-width: var(--foot-min); padding: 24px 0 32px; color: #6a6560; }
.foot-card {
  width: var(--foot-min);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  background: #f7f8f8;
  border-radius: 20px;
  padding: 32px 28px 20px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}
.foot-nav { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.foot-nav h4 { margin: 0 0 8px; color: #2a2d32; font-size: 13px; }
.foot-nav a { display: block; padding: 3px 0; font-size: 13px; color: #6a6560; }
.legal { font-size: 12px; color: #828282; max-width: 820px; }

@media (max-width: 1180px) { .site-foot, .foot-card { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .g23, .cards-3 { grid-template-columns: 1fr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .side-nav { 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; }
}