:root {
  --graphite: #2c2f34;
  --ash: #e6e8eb;
  --fog: #f3f4f6;
  --ink: #1f2226;
  --muted: #6a7078;
  --mark: rgba(212, 196, 160, 0.62);
  --glass: rgba(255, 255, 255, 0.34);
  --max: 1100px;
  --foot-min: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--ash);
  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; }

.fog {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 16% 12%, rgba(255, 255, 255, 0.5), transparent 42%),
    radial-gradient(ellipse at 88% 78%, rgba(44, 47, 52, 0.16), 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); }
.h2 {
  margin: 8px 0 18px;
  font-size: 28px;
  font-weight: 600;
  display: inline-block;
  background-image: linear-gradient(var(--mark), var(--mark));
  background-size: 100% 0.38em;
  background-repeat: no-repeat;
  background-position: 0 88%;
}
.lead { max-width: 640px; color: var(--muted); }

.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.flow {
  position: relative;
  isolation: isolate;
}
.flow::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(90deg, #7a8aa0, #d4c4a0, #8aa4c8, #7a8aa0);
  background-size: 220% 100%;
  animation: flow 4s linear infinite;
}
@keyframes flow { to { background-position: 220% 0; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  background: var(--graphite);
  color: #f4f5f6;
  cursor: pointer;
}
.btn-ghost { background: transparent; color: 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; }
.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(255, 255, 255, 0.9);
  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; }
.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; }

.dock {
  position: fixed;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 52px;
  padding: 10px 6px;
  border-radius: 18px;
}
.dock a {
  display: block;
  text-align: center;
  font-size: 11px;
  line-height: 1.3;
  padding: 8px 2px;
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 72px;
  overflow: hidden;
  background: #cfd3d8;
}
.globe { position: absolute; left: -80px; bottom: -140px; width: 540px; height: 540px; 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(230, 232, 235, 0.1), rgba(31, 34, 38, 0.28));
}
.slash {
  position: absolute;
  right: -8%;
  top: -12%;
  bottom: -12%;
  width: 54%;
  z-index: 2;
  background: rgba(255, 255, 255, 0.16);
  transform: skewX(-12deg);
  backdrop-filter: blur(8px);
}
.hero-split { position: relative; z-index: 3; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 36px; align-items: center; }
.float-banner { display: inline-block; margin-bottom: 14px; font-size: 12px; letter-spacing: 0.16em; }
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 600; }
.hero .sub { margin: 0 0 24px; font-size: 18px; color: rgba(31, 34, 38, 0.72); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-panel { padding: 24px; border-radius: 16px; }
.hero-panel h3 { margin: 0 0 8px; }
.hero-panel p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }

.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: #b8bcc2; border-radius: 12px; }
.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; grid-template-columns: 1.05fr 0.95fr; gap: 36px; align-items: center; margin-bottom: 72px; }
.zig.rev .copy { order: 2; }
.zig img { width: 100%; border-radius: 14px; background: #b8bcc2; }
.mini { display: flex; gap: 10px; margin-top: 12px; }
.mini img { width: 33%; height: 72px; object-fit: cover; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.icon-cell { padding: 18px 14px; min-height: 118px; background: var(--glass); border-radius: 12px; }
.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; border: 0; cursor: pointer; color: var(--muted); }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; background: #2a5a4a; border-radius: 12px; }

.miles { position: relative; padding-left: 28px; }
.miles::before { content: ""; position: absolute; left: 7px; top: 0; bottom: 0; width: 2px; background: rgba(31, 34, 38, 0.12); }
.mile { position: relative; margin-bottom: 28px; }
.mile::before { content: ""; position: absolute; left: -25px; top: 8px; width: 10px; height: 10px; border-radius: 50%; background: var(--graphite); }
.mile h3 { margin: 0 0 4px; font-size: 18px; }
.mile p { margin: 0; color: var(--muted); }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card { padding: 22px; min-height: 160px; background: var(--glass); border-radius: 12px; }
.card.private { border-radius: 16px; border: 1px solid rgba(31, 34, 38, 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: 10px; }

.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 22px; }
.review { padding: 22px; border-radius: 14px; min-height: 180px; }
.review strong { display: block; margin-top: 12px; 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: var(--glass); font-size: 13px; color: var(--muted); border-radius: 12px; }
.quote-card strong { display: block; margin-top: 10px; color: var(--ink); font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.compare article { padding: 28px; border-radius: 16px; min-height: 220px; }
.compare h3 { margin: 0 0 8px; font-size: 22px; }
.compare p, .compare li { color: var(--muted); }
.compare ul { padding-left: 18px; list-style: disc; margin: 0 0 16px; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 18px; }
.plat { text-align: center; padding: 14px 8px; background: var(--glass); border-radius: 10px; }

.faq-search { width: 100%; max-width: 520px; padding: 12px 16px; border: 0; border-radius: 10px; background: var(--glass); margin-bottom: 16px; }
.faq-list .item { padding: 14px 0; border-bottom: 1px solid rgba(31, 34, 38, 0.08); }
.faq-list h3 { margin: 0 0 6px; font-size: 16px; }
.faq-list p { margin: 0; color: var(--muted); font-size: 14px; }
.faq-list .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; }
body.sub .index-top { position: relative; background: rgba(230, 232, 235, 0.94); }
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-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: 900px; padding-bottom: 16px; }
.strip {
  background: #eceeef;
  font-size: 12px;
  color: #828282;
  padding: 14px 0;
  line-height: 1.8;
}

@media (max-width: 1180px) { .site-foot, .foot-inner { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .hero-split, .zig, .cards-3, .reviews, .compare { grid-template-columns: 1fr; }
  .zig.rev .copy { order: 0; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .dock { display: none; }
  .slash { 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; }
}