:root {
  --lemon: #f4e04a;
  --lemon-d: #c9b81a;
  --cement: #8a8680;
  --cement-d: #3d3a36;
  --paper: #d6d1c8;
  --ink: #2b2926;
  --muted: #6b6762;
  --line: rgba(61, 58, 54, 0.12);
  --max: 1100px;
  --foot-min: 1180px;
  --mono: Consolas, "Courier New", "Sarasa Mono SC", monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: 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; border: 0; background: none; }
ul { margin: 0; padding: 0; list-style: none; }
code, .mono { font-family: var(--mono); }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}
.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.kicker { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--muted); }
.h2 { margin: 8px 0 14px; font-size: 28px; font-weight: 500; }
.lead { max-width: 640px; color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  background: var(--lemon);
  color: var(--cement-d);
  font-size: 13px;
  letter-spacing: 0.12em;
  cursor: pointer;
}
.btn-ink { background: var(--cement-d); color: var(--lemon); }
.btn-ghost { background: transparent; color: #f6f1e4; }

/* 顶栏叠在 Hero 上，扁平无边框 */
.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: 16px;
  min-height: 64px;
}
.logo img { width: 118px; display: block; }
.nav-main { display: flex; align-items: center; gap: 18px; flex: 1; justify-content: center; font-size: 13px; color: #f6f1e4; }
.nav-main > li { position: relative; }
.nav-main a:hover { color: var(--lemon); }
.mega {
  display: none;
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  padding: 18px;
  background: #ece7dc;
  color: var(--ink);
  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; font-family: var(--mono); }
.mega a { display: block; padding: 4px 0; color: var(--muted); font-size: 13px; }
.top-cta { display: flex; gap: 14px; align-items: center; }
.top-cta .link { color: #f6f1e4; font-size: 12px; font-family: var(--mono); }
.menu-toggle { display: none; margin-left: auto; background: var(--lemon); padding: 8px 12px; color: var(--cement-d); }

.anchors {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 35;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.anchors a {
  width: 8px;
  height: 8px;
  background: var(--cement);
  overflow: hidden;
  text-indent: 20px;
  white-space: nowrap;
}
.anchors a:hover, .anchors a.is-on { background: var(--lemon-d); height: 22px; }

/* Hero：大字无产品图，地球作背景 */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  overflow: hidden;
  background: #3d3a36;
  color: #f6f1e4;
}
.globe {
  position: absolute;
  right: -8%;
  top: 4%;
  width: 720px;
  height: 720px;
  opacity: 0.28;
}
.spin { transform-origin: 200px 200px; animation: spin 48s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(61,58,54,0.12), rgba(61,58,54,0.82));
}
.hero-inner { position: relative; z-index: 2; }
.float-banner {
  display: inline-block;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lemon);
}
.hero h1 {
  margin: 0 0 16px;
  font-size: 48px;
  font-weight: 500;
  letter-spacing: 0.12em;
  max-width: 16em;
}
.hero .sub { margin: 0 0 32px; font-size: 18px; color: rgba(246,241,228,0.7); }
.hero-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.section { padding: 80px 0; }
.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: #cfc8ba;
}
.sell-item h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 13px; }

.split { display: grid; grid-template-columns: 1fr 1.05fr; gap: 32px; align-items: start; }
.shot { width: 100%; min-height: 260px; object-fit: contain; display: none; background: #cfc8ba; }
.shot.is-on { display: block; }
.pane { display: none; }
.pane.is-on { display: block; }

.acc-list { border: 0; }
.acc-row { padding: 14px 0; }
.acc-row + .acc-row { box-shadow: inset 0 1px 0 var(--line); }
.acc-row button {
  width: 100%;
  text-align: left;
  padding: 0;
  font-size: 16px;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.acc-row button span { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.acc-row .ans { display: none; padding: 8px 0 4px; color: var(--muted); font-size: 14px; }
.acc-row.open .ans { display: block; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.icon-cell { background: rgba(255,255,255,0.28); padding: 18px 14px; min-height: 118px; }
.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; letter-spacing: 0.14em; cursor: pointer; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 24px; min-height: 160px; background: rgba(255,255,255,0.28); }
.card.private { border-radius: 16px; border: 1px solid rgba(6,15,26,0.07); background: rgba(255,255,255,0.42); }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.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; }

.gauges { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center; }
.gauge { position: relative; }
.gauge svg { width: 140px; height: 80px; }
.gauge strong { display: block; margin-top: -8px; font-size: 20px; font-family: var(--mono); }
.gauge span { color: var(--muted); font-size: 12px; }

.faces {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 520px;
}
.face {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: #b7b1a6;
}
.bubbles { position: relative; min-height: 280px; }
.bubble {
  position: absolute;
  max-width: 240px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.55);
  font-size: 13px;
  color: var(--muted);
  animation: floaty 5s ease-in-out infinite;
}
.bubble b { display: block; margin-top: 8px; color: var(--ink); font-weight: 500; font-size: 12px; }
.bubble:nth-child(1) { top: 8%; left: 4%; }
.bubble:nth-child(2) { top: 38%; right: 6%; animation-delay: 0.8s; }
.bubble:nth-child(3) { bottom: 8%; left: 22%; animation-delay: 1.6s; }
@keyframes floaty { 50% { transform: translateY(-8px); } }

.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(255,255,255,0.36);
  font-size: 13px;
  color: var(--muted);
}
.quote-card strong { display: block; margin-top: 10px; color: var(--ink); font-size: 12px; font-weight: 500; }
@keyframes marquee { to { transform: translateX(-50%); } }

.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.duo article { padding: 24px; background: rgba(255,255,255,0.32); }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 14px; }
.plat { text-align: center; padding: 14px 8px; background: rgba(61,58,54,0.08); font-family: var(--mono); font-size: 12px; }

.line-faq { }
.line-faq .item { padding: 16px 0; box-shadow: inset 0 1px 0 var(--line); }
.line-faq h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; }
.line-faq p { margin: 0; color: var(--muted); }

.article { max-width: 740px; }
.article p { margin: 0 0 16px; color: var(--muted); }
.article h2 { margin: 26px 0 10px; font-size: 22px; font-weight: 500; }
.crumbs { padding: 88px 0 0; font-size: 12px; font-family: var(--mono); color: var(--muted); }
.page-hero { padding: 18px 0 36px; }
.page-hero h1 { margin: 8px 0 12px; font-size: 32px; font-weight: 500; }
body.sub .nav-main, body.sub .link { color: var(--ink); }
body.sub .index-top { background: rgba(214,209,200,0.92); }

.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: 24px; text-align: left; margin-bottom: 22px; }
.foot-nav h4 { margin: 0 0 8px; color: var(--ink); font-size: 13px; font-family: var(--mono); }
.foot-nav a { display: block; padding: 3px 0; font-size: 13px; }
.social { display: flex; gap: 10px; justify-content: center; margin: 8px 0 16px; }
.social span {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(61,58,54,0.08);
  font-family: var(--mono); font-size: 10px; color: var(--ink);
}
.legal { font-size: 12px; color: #828282; max-width: 820px; margin: 0 auto; text-align: center; }

@media (max-width: 1180px) { .site-foot, .foot-inner { min-width: 0; width: 100%; } .anchors { display: none; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .split, .duo, .cards-3, .gauges { grid-template-columns: 1fr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .foot-nav { flex-wrap: wrap; }
  .bubbles { min-height: 360px; }
}
@media (max-width: 770px) {
  .menu-toggle { display: inline-flex; }
  .nav-main, .top-cta { display: none; }
  .index-top.is-open .nav-main {
    display: flex; flex-direction: column; position: absolute; top: 100%; left: 20px; right: 20px;
    background: #ece7dc; color: var(--ink); padding: 16px; gap: 10px;
  }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
}