:root {
  --mustard: #c9b44b;
  --mustard-d: #8f7c22;
  --cement: #8a8680;
  --cement-d: #3f3c38;
  --paper: #d9d4cb;
  --ink: #2c2a26;
  --muted: #6a6560;
  --line: rgba(62, 58, 52, 0.18);
  --max: 1100px;
  --foot-min: 1180px;
  --hand: "Segoe Script", "Lucida Handwriting", "KaiTi", "STKaiti", cursive;
}
*, *::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; }
ul { margin: 0; padding: 0; list-style: none; }
.em { font-family: var(--hand); color: var(--mustard-d); font-weight: 400; }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.07;
  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='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}
.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.kicker { font-size: 11px; letter-spacing: 0.2em; color: var(--muted); text-transform: uppercase; }
.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: 42px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  background: var(--mustard);
  color: var(--cement-d);
  letter-spacing: 0.1em;
  font-size: 13px;
  cursor: pointer;
}
.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: #f3efe6;
  border: 1px solid rgba(201,180,75,0.45);
}
.btn-ink { background: var(--cement-d); color: #f3efe6; }

/* 居中浮动胶囊导航 */
.index-top {
  position: absolute;
  top: 18px;
  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;
  padding: 8px 14px 8px 16px;
  border-radius: 999px;
  background: rgba(63, 60, 56, 0.42);
  border: 1px solid rgba(201, 180, 75, 0.28);
  backdrop-filter: blur(10px);
}
.logo img { width: 118px; display: block; }
.nav-main { display: flex; align-items: center; gap: 16px; flex: 1; justify-content: center; font-size: 13px; color: #f3efe6; }
.nav-main > li { position: relative; }
.nav-main a:hover { color: var(--mustard); }
.mega {
  display: none;
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  padding: 18px;
  background: #ece8df;
  color: var(--ink);
  border-radius: 20px;
  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); font-size: 13px; }
.top-cta { display: flex; gap: 8px; align-items: center; }
.top-cta .link { color: #f3efe6; font-size: 12px; letter-spacing: 0.08em; }
.menu-toggle { display: none; margin-left: auto; border: 0; border-radius: 999px; background: var(--mustard); padding: 8px 12px; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 72px;
  overflow: hidden;
  background: #3f3c38;
  color: #f3efe6;
}
.globe {
  position: absolute;
  right: -6%;
  top: 8%;
  width: 640px;
  height: 640px;
  opacity: 0.45;
}
.spin { transform-origin: 200px 200px; animation: spin 40s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(63,60,56,0.15), rgba(63,60,56,0.78));
}
.float-banner {
  position: relative;
  z-index: 3;
  display: inline-flex;
  margin-bottom: 22px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(201,180,75,0.16);
  border: 1px solid rgba(201,180,75,0.4);
  color: var(--mustard);
  font-size: 12px;
  letter-spacing: 0.08em;
  animation: floaty 3.2s ease-in-out infinite;
}
@keyframes floaty { 50% { transform: translateY(-6px); } }
.hero-inner { position: relative; z-index: 2; }
.hero h1 { margin: 0 0 12px; font-size: 48px; font-weight: 500; letter-spacing: 0.08em; }
.hero .sub { margin: 0 0 28px; font-size: 18px; color: rgba(243,239,230,0.72); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* 四大卖点 */
.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; border-radius: 18px;
  border: 1px solid var(--line); background: #cfc9bd;
}
.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; }

/* 大图+玻璃卡 */
.glass-scene {
  position: relative;
  min-height: 420px;
  border-radius: 28px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
.glass-scene::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(63,60,56,0.55), rgba(63,60,56,0.12));
}
.glass-card {
  position: relative;
  z-index: 1;
  max-width: 380px;
  margin: 48px 40px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(217, 212, 203, 0.28);
  border: 1px solid rgba(243,239,230,0.35);
  backdrop-filter: blur(14px);
  color: #f3efe6;
}
.ftabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.ftabs button {
  border: 0; border-radius: 999px; padding: 8px 14px;
  background: rgba(63,60,56,0.08); color: var(--muted); cursor: pointer;
}
.ftabs button.is-on { background: var(--mustard); color: var(--cement-d); }
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 28px; align-items: center; }
.pane { display: none; }
.pane.is-on { display: block; }
.shot { width: 100%; min-height: 260px; object-fit: contain; display: none; background: #cfc9bd; border-radius: 18px; }
.shot.is-on { display: block; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.icon-cell { background: rgba(255,255,255,0.35); border-radius: 18px; 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: 10px; }
.more-box.is-on { display: grid; }
.fold-btn { display: block; margin: 20px auto 0; background: none; border: 0; border-radius: 999px; padding: 8px 16px; letter-spacing: 0.12em; cursor: pointer; }
.oa-banner { width: 100%; max-width: 460px; margin: 0 0 22px; border-radius: 18px; background: #2a5a4a; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card { padding: 24px; min-height: 160px; background: rgba(255,255,255,0.32); border-radius: 8px; }
.card.private { border-radius: 16px; border: 1px solid rgba(6,15,26,0.07); background: rgba(255,255,255,0.45); }
.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; border-radius: 14px; }

.marquee { overflow: hidden; padding: 12px 0; }
.track { display: flex; gap: 10px; width: max-content; animation: marquee 70s linear infinite; }
.chip { flex: 0 0 auto; padding: 8px 14px; border-radius: 999px; background: rgba(63,60,56,0.08); font-size: 13px; }
.quote-card {
  flex: 0 0 228px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.42);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.quote-card strong { display: block; margin-top: 10px; color: var(--mustard-d); font-size: 12px; font-weight: 500; }
@keyframes marquee { to { transform: translateX(-50%); } }
.glass-card .ftabs button { color: #f3efe6; background: rgba(255,255,255,0.12); }
.glass-card .ftabs button.is-on { background: var(--mustard); color: var(--cement-d); }
.selector { display: grid; grid-template-columns: 200px 1fr; gap: 16px; }
.selector-nav button {
  display: block; width: 100%; margin: 0 0 8px; text-align: left;
  border: 0; border-radius: 999px; padding: 10px 16px;
  background: rgba(63,60,56,0.08); color: var(--muted); cursor: pointer;
}
.selector-nav button.is-on { background: var(--mustard); color: var(--cement-d); }
.selector-pane { padding: 22px; border-radius: 22px; background: rgba(255,255,255,0.4); min-height: 180px; }
.qr { width: 148px; height: 148px; margin: 0 auto; border-radius: 18px; background: repeating-linear-gradient(90deg,#2c2a26 0 8px,transparent 8px 16px), repeating-linear-gradient(#2c2a26 0 8px,transparent 8px 16px); background-size: 16px 16px; }
.qr-inner { width: 64%; height: 64%; margin: 18%; border-radius: 8px; background: var(--paper); display: flex; align-items: center; justify-content: center; font-size: 12px; }
.faq-item h3 { margin: 0; font-size: 16px; font-weight: 500; }
.faq-item p { margin: 6px 0 14px; color: var(--muted); }
@media (max-width: 930px) { .selector { grid-template-columns: 1fr; } }

.masonry { column-count: 3; column-gap: 14px; }
.brick { break-inside: avoid; margin: 0 0 14px; padding: 16px; border-radius: 18px; background: rgba(255,255,255,0.38); }
.brick .num { font-size: 28px; font-family: var(--hand); color: var(--mustard-d); }

.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.duo article { padding: 24px; border-radius: 22px; background: rgba(255,255,255,0.4); }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.plat { text-align: center; padding: 14px 8px; border-radius: 999px; background: rgba(63,60,56,0.08); }

.acc { border-top: 1px solid var(--line); }
.acc button { width: 100%; text-align: left; background: none; border: 0; padding: 14px 0; font-size: 16px; cursor: pointer; }
.acc .ans { display: none; padding: 0 0 14px; color: var(--muted); }
.acc.open .ans { display: block; }
.faq-search { width: 100%; margin: 0 0 12px; padding: 12px 16px; border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,0.5); }

.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: 108px 0 0; font-size: 12px; color: var(--muted); }
.page-hero { padding: 18px 0 36px; }
.page-hero h1 { margin: 8px 0 12px; font-size: 32px; font-weight: 500; }
body.sub .top-inner { background: rgba(217,212,203,0.9); }
body.sub .nav-main, body.sub .link { color: var(--ink); }

.site-foot { background: #f7f8f8; min-width: var(--foot-min); padding: 40px 0 24px; text-align: center; color: #6a6560; }
.foot-inner { width: var(--foot-min); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-nav { display: flex; justify-content: center; gap: 40px; text-align: left; margin-bottom: 22px; }
.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; margin: 0 auto; }

@media (max-width: 1180px) { .site-foot, .foot-inner { min-width: 0; width: 100%; } }
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .split, .duo, .cards-3 { grid-template-columns: 1fr; }
  .masonry { column-count: 1; }
  .sell-item { width: 43%; margin-bottom: 22px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .foot-nav { flex-wrap: wrap; justify-content: flex-start; }
}
@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: 110%; left: 20px; right: 20px;
    background: #ece8df; color: var(--ink); padding: 16px; border-radius: 18px; gap: 10px;
  }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
  .glass-card { margin: 24px 16px; }
}