:root {
  --ink: #15211b;
  --green: #2e5c46;
  --muted: #6f7a72;
  --paper: #f1efe8;
  --max: 1100px;
  --foot-min: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    repeating-linear-gradient(0deg, rgba(21, 33, 27, 0.025) 0 1px, transparent 1px 7px),
    var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.85;
}
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; z-index: 1; }
.kicker { font-size: 12px; letter-spacing: 0.24em; color: var(--green); }
.h2 { margin: 8px 0 18px; font-size: 32px; font-weight: 900; letter-spacing: -0.01em; }
.lead { max-width: 640px; color: var(--muted); font-size: 13px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border: 0;
  background: var(--ink);
  color: #f1efe8;
  cursor: pointer;
  font-weight: 700;
}
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px 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; }
.top-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; font-size: 12px; }
.top-cta .btn { min-height: 34px; padding: 0 14px; }

.side-l {
  position: fixed; left: 14px; top: 50%; transform: translateY(-50%); z-index: 70;
  display: flex; flex-direction: column; gap: 10px; font-size: 12px;
}
.side-l a { writing-mode: vertical-rl; letter-spacing: 0.22em; color: var(--muted); }
.side-l a:hover { color: var(--ink); }
.side-r {
  position: fixed; right: 14px; top: 50%; transform: translateY(-50%); z-index: 70;
  display: flex; flex-direction: column; gap: 10px; font-size: 12px;
}
.side-r a { writing-mode: vertical-rl; letter-spacing: 0.22em; color: var(--muted); }
.side-r a:hover { color: var(--ink); }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 130px 0 70px;
  overflow: hidden;
  background: linear-gradient(180deg, #e6e4d8, #dcd9cb);
}
.globe { position: absolute; left: 50%; top: 8%; width: 720px; height: 720px; margin-left: -360px; opacity: 0.12; 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% 40%, rgba(241,239,232,0.03), rgba(21,33,27,0.14)); }
.hero-inner { position: relative; z-index: 3; }
.hero-duo { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 34px; align-items: center; }
.hero-duo .shot { width: 100%; height: 320px; object-fit: cover; }
.float-banner { display: inline-block; margin-bottom: 16px; padding: 6px 14px; background: var(--ink); color: #f1efe8; font-size: 12px; letter-spacing: 0.1em; }
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; }
.hero .sub { margin: 0 0 22px; font-size: 15px; color: var(--green); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.section { padding: 84px 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: #dcd9cb; }
.sell-item h3 { margin: 0 0 6px; font-size: 17px; font-weight: 800; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 12px; }

.hscroll { display: flex; gap: 12px; overflow-x: auto; padding: 6px 2px 14px; scroll-snap-type: x mandatory; }
.hscroll .hc { flex: 0 0 300px; scroll-snap-align: start; background: #fff; padding: 20px; }
.hc h3 { margin: 0 0 8px; font-size: 18px; font-weight: 800; }
.hc p { margin: 0; color: var(--muted); font-size: 13px; }
.hc img { width: 100%; height: 130px; object-fit: cover; margin-top: 12px; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.icon-cell { padding: 18px 14px; min-height: 112px; background: #fff; }
.icon-cell strong { display: block; margin-bottom: 6px; }
.icon-cell span { color: var(--muted); font-size: 12px; }
.more-box { display: none; margin-top: 10px; }
.more-box.is-on { display: grid; }
.fold-btn { display: block; margin: 20px auto 0; background: var(--ink); color: #f1efe8; border: 0; cursor: pointer; padding: 10px 22px; }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; }

.stat4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--ink); color: #f1efe8; }
.stat4 div { padding: 30px 14px; text-align: center; }
.stat4 div + div { border-left: 1px solid rgba(241,239,232,0.16); }
.stat4 .num { font-size: 38px; font-weight: 900; }
.stat4 span { color: rgba(241,239,232,0.7); font-size: 12px; }

.case-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.case-duo img { width: 100%; height: 280px; object-fit: cover; }
.case-duo blockquote { margin: 0 0 12px; font-size: 24px; font-weight: 900; line-height: 1.5; }
.case-duo p { color: var(--muted); font-size: 13px; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; background: #fff; }
.card.private { border-radius: 16px; border: 1px solid rgba(21,33,27,0.12); }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 800; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }
.tile-shot { width: 100%; height: 128px; object-fit: cover; object-position: top; margin-top: 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: #fff; 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%); } }

.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.duo .card { text-align: center; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.plat { text-align: center; padding: 14px 8px; background: #fff; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq-card { padding: 18px; background: #fff; }
.faq-card h3 { margin: 0 0 8px; font-size: 16px; font-weight: 800; }
.faq-card p { margin: 0; color: var(--muted); font-size: 13px; }

.article { max-width: 740px; }
.article p { margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.article h2 { margin: 26px 0 10px; font-size: 24px; font-weight: 900; }
.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: 34px; font-weight: 900; }
body.sub .index-top { position: relative; background: rgba(241,239,232,0.96); }
body.sub .crumbs { padding-top: 12px; }

.site-foot { background: #f7f8f8; min-width: var(--foot-min); padding: 40px 0 0; color: #6a6560; }
.foot-inner { width: var(--foot-min); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-logo { width: 170px; margin-bottom: 12px; }
.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; }
.copy { border-top: 1px solid #e5e5e5; margin-top: 16px; padding: 14px 0; font-size: 12px; color: #828282; }

@media (max-width: 1180px) { .site-foot, .foot-inner { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .hero-duo, .cards-3, .duo, .faq-grid, .case-duo { grid-template-columns: 1fr; }
  .stat4 { grid-template-columns: 1fr 1fr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .side-l, .side-r { display: none; }
  .foot-nav { flex-wrap: wrap; }
}
@media (max-width: 770px) {
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
}