:root {
  --paper: #f3e6cf;
  --paper-2: #efe0c4;
  --paper-3: #e7d3ae;
  --ink: #241d16;
  --ink-soft: #5d5246;
  --ink-faint: #8a7b68;
  --line: #cbb89a;
  --cyan: #5ed6ce;
  --pink: #e07a96;
  --amber: #e0b25c;
  --tube: #1c1713;
  --max: 1100px;
  --foot-min: 1180px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Serif SC", serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

.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='.85' 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; }

.dash {
  border: 0;
  border-top: 1px dashed var(--line);
  margin: 0;
}

.kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.h2 {
  margin: 8px 0 12px;
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.lead {
  max-width: 640px;
  color: var(--ink-soft);
  font-size: 15px;
}

.tube {
  background: var(--tube);
  color: var(--paper);
  box-shadow: 0 0 0 1px #3a322b, 0 0 12px rgba(94, 214, 206, 0.35), inset 0 0 10px rgba(224, 178, 92, 0.12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.12em;
  transition: 0.2s ease;
}

.btn:hover { background: var(--ink); color: var(--paper); }

.btn-fill {
  background: var(--ink);
  color: var(--paper);
}

.btn-fill:hover { background: #000; }

.btn-neon {
  border-color: var(--cyan);
  color: var(--tube);
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(94, 214, 206, 0.45);
}

.btn-neon:hover { background: #73ece4; }

.btn-ghost {
  border-color: rgba(243, 230, 207, 0.45);
  color: var(--paper);
}

.btn-ghost:hover { background: var(--paper); color: var(--ink); }

/* —— 顶栏叠在 Hero 上 —— */
.index-top {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 30;
  width: 100%;
  padding: 18px 0 14px;
  border-bottom: 1px dashed rgba(243, 230, 207, 0.35);
}

.index-top .top-inner {
  width: var(--max);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo img { width: 132px; height: auto; filter: brightness(1.15) saturate(0.85); }

.nav-main {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 1;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.nav-main > li { position: relative; }
.nav-main a { color: var(--paper); }
.nav-main a:hover { color: var(--cyan); }

.mega {
  display: none;
  position: absolute;
  top: 120%;
  left: -24px;
  width: 640px;
  padding: 22px;
  background: var(--paper);
  color: var(--ink);
  border: 1px dashed var(--line);
  z-index: 40;
}

.has-mega:hover .mega,
.has-mega:focus-within .mega { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; }

.mega a { color: var(--ink-soft); display: block; padding: 4px 0; font-size: 13px; }
.mega a:hover { color: var(--ink); }
.mega h4 { margin: 0 0 8px; font-size: 12px; font-weight: 500; letter-spacing: 0.16em; }

.top-cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.top-cta .link {
  color: var(--paper);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding: 8px 6px;
}
.top-cta .link:hover { color: var(--cyan); }

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--paper);
  background: transparent;
  color: var(--paper);
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 120px 0 72px;
  background: #1a1612;
  color: var(--paper);
  overflow: hidden;
}

.hero-mask {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 45%, rgba(94, 214, 206, 0.16), transparent 42%),
    radial-gradient(ellipse at 20% 80%, rgba(224, 122, 150, 0.12), transparent 46%),
    linear-gradient(180deg, rgba(26, 22, 18, 0.2), rgba(26, 22, 18, 0.72));
}

.globe {
  position: absolute;
  right: -8%;
  top: 12%;
  width: 620px;
  height: 620px;
  opacity: 0.55;
}

.globe svg { width: 100%; height: 100%; }
.spin { transform-origin: 200px 200px; animation: spin 36s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.hero-inner { position: relative; z-index: 2; }

.notice {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding: 6px 12px;
  border: 1px dashed rgba(243, 230, 207, 0.35);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.hero h1 {
  margin: 0 0 16px;
  font-size: 48px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
}

.hero .sub {
  margin: 0 0 32px;
  font-size: 18px;
  color: rgba(243, 230, 207, 0.72);
  font-weight: 400;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }

.selector {
  display: grid;
  grid-template-columns: 220px 1fr;
  border: 1px dashed rgba(243, 230, 207, 0.32);
  min-height: 220px;
}

.selector-nav button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border: 0;
  border-bottom: 1px dashed rgba(243, 230, 207, 0.22);
  background: transparent;
  color: rgba(243, 230, 207, 0.7);
  letter-spacing: 0.1em;
}

.selector-nav button.is-on,
.selector-nav button:hover {
  color: var(--cyan);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.selector-pane {
  padding: 28px 32px;
  border-left: 1px dashed rgba(243, 230, 207, 0.22);
}

.selector-pane h3 { margin: 0 0 8px; font-size: 20px; font-weight: 500; }
.selector-pane p { margin: 0 0 18px; color: rgba(243, 230, 207, 0.7); }
.pane { display: none; }
.pane.is-on { display: block; }

/* —— 四大卖点 float —— */
.section { padding: 88px 0; }
.section-head { margin-bottom: 36px; }

.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 14px;
  border: 1px dashed var(--line);
  background: var(--paper-2);
  object-fit: cover;
  display: block;
}

.tile-shot {
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: top;
  margin: 12px 0 0;
  border: 1px dashed var(--line);
  background: var(--paper-2);
}

.ftabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.ftabs button {
  padding: 8px 14px;
  border: 1px dashed var(--line);
  background: transparent;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  font-size: 13px;
}

.ftabs button.is-on {
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: 0 0 10px rgba(94, 214, 206, 0.25);
}

.shot-col {
  min-height: 280px;
  border: 1px dashed var(--line);
  background: var(--paper-2);
  overflow: hidden;
}

.shot {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: contain;
  display: none;
  background: var(--paper-2);
}

.shot.is-on { display: block; }

.oa-banner {
  width: 100%;
  max-width: 520px;
  height: auto;
  margin: 0 0 28px;
  border: 1px dashed var(--line);
  background: #2a5a4a;
}

.hero-shot {
  width: 100%;
  max-height: 160px;
  object-fit: contain;
  margin-top: 12px;
  border: 1px dashed rgba(243, 230, 207, 0.28);
}

.sell-item h3 { margin: 0 0 8px; font-size: 16px; font-weight: 500; }
.sell-item p { margin: 0; color: var(--ink-soft); font-size: 13px; text-align: left; }

/* —— Bento —— */
.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.tile {
  padding: 28px;
  border: 1px dashed var(--line);
  background: rgba(255, 255, 255, 0.22);
  min-height: 160px;
}

.tile-lg { grid-column: span 7; }
.tile-sm { grid-column: span 5; }
.tile-md { grid-column: span 6; }
.tile-3 { grid-column: span 4; }
.tile-wide { grid-column: span 12; }

.tile h3 { margin: 10px 0 8px; font-size: 20px; font-weight: 500; }
.tile p { margin: 0; color: var(--ink-soft); }

.neon-edge { box-shadow: inset 0 0 0 1px rgba(94, 214, 206, 0.35), 0 0 18px rgba(94, 214, 206, 0.12); }
.pink-edge { box-shadow: inset 0 0 0 1px rgba(224, 122, 150, 0.35), 0 0 18px rgba(224, 122, 150, 0.1); }
.amber-edge { box-shadow: inset 0 0 0 1px rgba(224, 178, 92, 0.4), 0 0 18px rgba(224, 178, 92, 0.12); }

/* 三段相同版式 */
.split {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0;
  border-top: 1px dashed var(--line);
}

.split-visual {
  min-height: 280px;
  border: 1px dashed var(--line);
  background:
    linear-gradient(135deg, rgba(94, 214, 206, 0.12), transparent 42%),
    var(--paper-2);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

.fake-app {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 16px;
}

.bar { height: 8px; background: var(--paper-3); margin-bottom: 10px; }
.bar.w2 { width: 62%; }
.bar.w3 { width: 40%; background: var(--cyan); }

/* 宫格 */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px dashed var(--line);
}

.icon-cell {
  background: var(--paper);
  padding: 22px 18px;
  min-height: 132px;
}

.icon-cell strong { display: block; margin-bottom: 6px; font-weight: 500; }
.icon-cell span { color: var(--ink-soft); font-size: 13px; }

.more-box { display: none; margin-top: 1px; }
.more-box.is-on { display: grid; }

.fold-btn {
  display: block;
  margin: 24px auto 0;
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--ink);
  padding: 0 0 4px;
  letter-spacing: 0.16em;
}

/* 三列卡片 */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  padding: 27px 29px;
  min-height: 169px;
  border: 1px solid rgba(6, 15, 26, 0.07);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.35);
}

.card.private {
  border-radius: 16px;
  border: 1px solid rgba(6, 15, 26, 0.07);
}

.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.card p { margin: 0; color: var(--ink-soft); font-size: 14px; }

/* 数据左右分栏 */
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
}

.stat {
  display: flex;
  gap: 22px;
  align-items: center;
  padding: 36px 28px;
}

.stat + .stat { border-left: 1px dashed var(--line); }
.stat .num { font-size: 42px; font-weight: 500; letter-spacing: 0.04em; line-height: 1; }
.stat .mark {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px dashed var(--ink);
  display: grid;
  place-items: center;
  font-size: 12px;
}

/* 信任双栏 */
.trust {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}

.rate-row { display: flex; align-items: center; gap: 12px; margin: 10px 0; font-size: 13px; }
.rate-bar { flex: 1; height: 6px; background: var(--paper-3); }
.rate-bar i { display: block; height: 100%; background: var(--ink); }

.quotes .quote {
  padding: 16px 0;
  border-top: 1px dashed var(--line);
  color: var(--ink-soft);
}

/* 走马灯 */
.marquee {
  overflow: hidden;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  padding: 18px 0;
}

.track {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: marquee 80s linear infinite;
}

.chip {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px dashed var(--line);
  font-size: 13px;
  letter-spacing: 0.06em;
}

@keyframes marquee { to { transform: translateX(-50%); } }

/* 下载 + 二维码 */
.download-duo {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
}

.qr {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  padding: 10px;
  border: 1px dashed var(--ink);
  background:
    repeating-linear-gradient(90deg, var(--ink) 0 6px, transparent 6px 12px),
    repeating-linear-gradient(0deg, var(--ink) 0 6px, transparent 6px 12px);
  background-size: 100% 12px, 12px 100%;
  background-color: var(--paper);
}

.qr-inner {
  width: 100%;
  height: 100%;
  background: var(--paper);
  display: grid;
  place-items: center;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.plat {
  padding: 18px 14px;
  border: 1px dashed var(--line);
  text-align: center;
}

/* FAQ */
.faq-search {
  width: 100%;
  margin-bottom: 18px;
  padding: 12px 14px;
  border: 1px dashed var(--line);
  background: transparent;
  font-size: 14px;
}

.faq-item { border-top: 1px dashed var(--line); padding: 16px 0; }
.faq-item h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; }
.faq-item p { margin: 0; color: var(--ink-soft); }
.faq-item.is-hide { display: none; }

/* 页脚 */
.site-foot {
  background: #f7f8f8;
  border-top: 1px dashed var(--line);
  min-width: var(--foot-min);
  padding: 48px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.foot-inner {
  width: var(--foot-min);
  max-width: calc(100% - 40px);
  margin: 0 auto;
}

.foot-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 36px;
}

.foot-nav h4 { margin: 0 0 12px; color: var(--ink); font-size: 13px; font-weight: 500; letter-spacing: 0.14em; }
.foot-nav a { display: block; padding: 4px 0; color: var(--ink-soft); }
.foot-nav a:hover { color: var(--ink); }

.legal {
  border-top: 1px dashed var(--line);
  padding: 16px 0 22px;
  color: #828282;
  font-size: 12px;
}

.crumbs { padding: 128px 0 0; font-size: 12px; color: var(--ink-faint); letter-spacing: 0.08em; }
.page-hero { padding: 24px 0 48px; }
.article { max-width: 760px; }
.article p { margin: 0 0 16px; color: var(--ink-soft); }
.article h2 { margin: 32px 0 12px; font-size: 22px; font-weight: 500; }

.page-hero h1 {
  margin: 8px 0 12px;
  font-size: 36px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

body.sub .index-top {
  position: absolute;
  background: var(--paper);
}

body.sub .index-top .nav-main a,
body.sub .top-cta .link { color: var(--ink); }
body.sub .index-top {
  border-bottom-color: var(--line);
}
body.sub .logo img { filter: none; }
body.sub .menu-toggle { border-color: var(--ink); color: var(--ink); }
body.sub .top-cta .btn-neon { color: var(--tube); }

body.sub .selector-nav button { color: var(--ink-soft); }
body.sub .selector-nav button.is-on,
body.sub .selector-nav button:hover { color: var(--ink); }
body.sub .selector-pane h3 { color: var(--ink); }
body.sub .selector-pane p { color: var(--ink-soft); }
body.sub .crumbs { padding-top: 108px; }

@media (max-width: 1180px) {
  .site-foot, .foot-inner { min-width: 0; width: 100%; }
}

@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .selector, .split, .trust, .download-duo, .stats, .cards-3 { grid-template-columns: 1fr; }
  .stat + .stat { border-left: 0; border-top: 1px dashed var(--line); }
  .sell-item { width: 43%; margin-bottom: 28px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .tile-lg, .tile-sm, .tile-md, .tile-3 { grid-column: span 12; }
  .globe { width: 360px; height: 360px; right: -20%; }
}

@media (max-width: 770px) {
  .menu-toggle { display: grid; place-items: center; margin-left: auto; }
  .nav-main, .top-cta { display: none; }
  .index-top.is-open .nav-main {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--tube);
    padding: 16px 20px 24px;
    gap: 14px;
  }
  body.sub .index-top.is-open .nav-main { background: var(--paper); }
  .index-top.is-open .top-cta {
    display: flex;
    position: absolute;
    top: calc(100% + 220px);
    left: 20px;
  }
  .has-mega:hover .mega { position: static; width: auto; display: block; }
  .hero { padding-top: 96px; }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
  .illust { width: 100%; max-width: 200px; }
}