:root {
  --aqua: #3f8f7d;
  --aqua-d: #26594d;
  --aqua-l: #c4ded6;
  --ink: #141d1a;
  --muted: #6c7a74;
  --paper: #edebe4;
  --max: 1100px;
  --foot-min: 1180px;
  --stroke: 3px solid #141d1a;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(63, 143, 125, 0.1), transparent 40%),
    linear-gradient(300deg, rgba(196, 222, 214, 0.5), transparent 46%),
    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; }
ul { margin: 0; padding: 0; list-style: none; }

.vert {
  writing-mode: vertical-rl;
  letter-spacing: 0.34em;
  color: rgba(38, 89, 77, 0.5);
  font-size: 13px;
}

.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(--aqua-d); }
.h2 { margin: 8px 0 18px; font-size: 28px; font-weight: 800; }
.lead { max-width: 640px; color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: var(--stroke);
  background: var(--aqua);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  box-shadow: 6px 6px 0 #141d1a;
}
.btn-ghost { background: #fff; color: var(--ink); }
.btn-xl { min-height: 66px; padding: 0 44px; font-size: 20px; }

.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; box-shadow: 3px 3px 0 #141d1a; }
.burger {
  width: 46px; height: 46px; border: var(--stroke); background: #fff; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.burger i { display: block; width: 20px; height: 3px; background: var(--ink); }

.drawer {
  position: fixed; inset: 0; z-index: 80; display: none;
  background: rgba(20, 29, 26, 0.94); color: #edebe4;
  padding: 90px 0 40px; overflow: auto;
}
.drawer.is-on { display: block; }
.drawer .close {
  position: absolute; top: 20px; right: 24px;
  border: 3px solid #edebe4; background: transparent; color: #edebe4;
  width: 46px; height: 46px; cursor: pointer; font-size: 18px;
}
.drawer-inner { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.drawer a { display: block; padding: 10px 0; font-size: 20px; font-weight: 800; border-bottom: 2px dashed rgba(237,235,228,0.3); }
.drawer h4 { margin: 0 0 8px; font-size: 13px; color: var(--aqua-l); }
.drawer .small a { font-size: 14px; font-weight: 400; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 110px 0 60px;
  overflow: hidden;
  background: linear-gradient(180deg, #cfe0d8, #bcd2c8);
}
.globe { position: absolute; left: 50%; top: 10%; width: 720px; height: 720px; margin-left: -360px; opacity: 0.16; 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(237,235,228,0.05), rgba(38,89,77,0.2)); }
.hero-inner { position: relative; z-index: 3; }
.hero-main {
  text-align: center; padding: 34px 24px; background: #fff; border: var(--stroke);
  box-shadow: 10px 10px 0 #141d1a; max-width: 720px; margin: 0 auto;
}
.float-banner { display: inline-block; margin-bottom: 14px; padding: 6px 14px; background: var(--paper); color: var(--ink); border: 2px solid var(--ink); font-size: 12px; }
.hero h1 { margin: 0 0 8px; font-size: 48px; font-weight: 900; line-height: 1.2; }
.hero .sub { margin: 0 0 20px; font-size: 17px; color: var(--aqua-d); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.hero-sub-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 720px; margin: 18px auto 0; }
.hero-sub-cards div { background: #fff; border: var(--stroke); padding: 14px; font-size: 13px; text-align: left; }
.hero-sub-cards strong { display: block; margin-bottom: 4px; }
.hero-side { position: absolute; right: 10px; top: 130px; z-index: 3; }

.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: #c4ded6; border: var(--stroke); }
.sell-item h3 { margin: 0 0 6px; font-size: 16px; }
.sell-item p { margin: 0; text-align: left; color: var(--muted); font-size: 13px; }

.zig { display: grid; gap: 26px; }
.zig-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.zig-row:nth-child(even) { direction: rtl; }
.zig-row > * { direction: ltr; }
.zig-row img { width: 100%; height: 240px; object-fit: cover; border: var(--stroke); }
.zig-row h3 { margin: 0 0 8px; font-size: 22px; font-weight: 900; }
.zig-row p { margin: 0; color: var(--muted); }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.icon-cell { padding: 16px 14px; min-height: 112px; border: var(--stroke); background: #fff; }
.icon-cell strong { display: block; margin-bottom: 6px; }
.icon-cell span { color: var(--muted); font-size: 13px; }
.more-box { display: none; margin-top: 10px; }
.more-box.is-on { display: grid; }
.fold-btn { display: block; margin: 20px auto 0; background: #fff; border: var(--stroke); cursor: pointer; padding: 8px 18px; font-weight: 800; }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; border: var(--stroke); }

.rings { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ring { text-align: center; }
.ring svg { width: 130px; height: 130px; }
.ring .bgc { stroke: #d8e4df; }
.ring .fgc { stroke: var(--aqua-d); stroke-linecap: round; }
.ring strong { display: block; font-size: 24px; margin-top: -4px; }
.ring span { color: var(--muted); font-size: 13px; }

.bigquote { text-align: center; max-width: 780px; margin: 0 auto; }
.bigquote blockquote { margin: 0; font-size: 30px; line-height: 1.5; font-weight: 900; color: var(--aqua-d); }
.bigquote p { color: var(--muted); }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; border: var(--stroke); background: #fff; }
.card.private { border-radius: 16px; border: 1px solid rgba(20,29,26,0.15); box-shadow: none; }
.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: 2px solid var(--ink); }

.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); border: var(--stroke); }
.quote-card strong { display: block; margin-top: 10px; color: var(--ink); font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.dl-hero { text-align: center; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 22px; }
.plat { text-align: center; padding: 14px 8px; border: var(--stroke); background: #fff; }

.faq-min { max-width: 760px; margin: 0 auto; }
.faq-min .qi { padding: 16px 0; border-bottom: 2px dashed rgba(20,29,26,0.3); }
.faq-min .qi:first-child { border-top: 2px dashed rgba(20,29,26,0.3); }
.faq-min h3 { margin: 0 0 6px; font-size: 16px; }
.faq-min 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(237,235,228,0.95); border-bottom: var(--stroke); }
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-logo { width: 160px; 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; }
.social { display: flex; gap: 10px; justify-content: center; margin: 8px 0 14px; }
.social span {
  width: 38px; height: 38px; border: 2px solid var(--ink); background: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 13px; color: var(--aqua-d); font-weight: 800;
}
.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%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .cards-3, .zig-row, .rings, .hero-sub-cards { grid-template-columns: 1fr; }
  .zig-row:nth-child(even) { direction: ltr; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .hero-side { display: none; }
  .foot-nav { flex-wrap: wrap; }
  .drawer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 770px) {
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
}