:root {
  --peach: #f6c2ce;
  --peach-2: #f3a9bb;
  --peach-3: #e8899f;
  --blush: #fff1f4;
  --ink: #3a242c;
  --ink-soft: #6d4a55;
  --faint: #a07784;
  --neon: #6ef0e4;
  --neon-2: #ff7aa2;
  --tube: #2b161c;
  --line: rgba(232, 137, 159, 0.45);
  --max: 1100px;
  --foot-min: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--blush);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  font-weight: 400;
}
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; }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.kicker { font-size: 11px; letter-spacing: 0.22em; color: var(--faint); text-transform: uppercase; }
.h2 { margin: 8px 0 12px; font-size: 28px; font-weight: 500; letter-spacing: 0.06em; }
.lead { max-width: 640px; color: var(--ink-soft); }
.mega-num {
  font-size: 120px;
  font-weight: 500;
  line-height: 0.8;
  color: rgba(232, 137, 159, 0.18);
  letter-spacing: -0.04em;
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  color: var(--ink);
  background: linear-gradient(var(--blush), var(--blush)) padding-box,
              linear-gradient(120deg, var(--neon-2), var(--neon)) border-box;
  border: 1px solid transparent;
  letter-spacing: 0.12em;
  font-size: 13px;
}
.btn-dark {
  color: #fff7f8;
  background: linear-gradient(var(--tube), var(--tube)) padding-box,
              linear-gradient(120deg, var(--neon), var(--neon-2)) border-box;
}
.btn-fill { color: var(--tube); background: var(--neon); border: 0; }

/* 顶栏：透明 → 滚动实色 */
.index-top {
  position: absolute;
  top: 0; left: 0;
  z-index: 40;
  width: 100%;
  padding: 18px 0;
  background: transparent;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.index-top.is-solid {
  position: fixed;
  background: rgba(255, 241, 244, 0.94);
  border-bottom: 1px solid var(--line);
}
.index-top .top-inner {
  width: var(--max);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo img { width: 128px; }
.nav-main { display: flex; align-items: center; gap: 20px; flex: 1; font-size: 13px; letter-spacing: 0.08em; color: #fff; }
.index-top.is-solid .nav-main, .index-top.is-solid .link { color: var(--ink); }
.nav-main > li { position: relative; }
.nav-main a:hover { color: var(--neon); }
.mega {
  display: none;
  position: absolute;
  top: 120%;
  left: -16px;
  width: 560px;
  padding: 20px;
  background: var(--blush);
  color: var(--ink);
  border: 1px solid var(--line);
  z-index: 50;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}
.has-mega:hover .mega, .has-mega:focus-within .mega { display: grid; }
.mega h4 { margin: 0 0 8px; font-size: 12px; letter-spacing: 0.14em; }
.mega a { display: block; padding: 4px 0; color: var(--ink-soft); font-size: 13px; }
.top-cta { display: flex; gap: 10px; align-items: center; }
.top-cta .link { color: #fff; font-size: 13px; letter-spacing: 0.1em; }
.menu-toggle { display: none; width: 40px; height: 40px; border: 1px solid currentColor; background: transparent; color: #fff; margin-left: auto; }
.index-top.is-solid .menu-toggle { color: var(--ink); }

/* Hero 3D 双端 */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 130px 0 80px;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(255, 122, 162, 0.35), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(110, 240, 228, 0.18), transparent 46%),
    var(--tube);
  color: #fff7f8;
  overflow: hidden;
}
.hero-orbit {
  position: absolute;
  inset: 8% 10%;
  border: 1px solid rgba(255, 122, 162, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 24px rgba(110, 240, 228, 0.15), inset 0 0 40px rgba(255, 122, 162, 0.08);
}
.hero-inner { position: relative; z-index: 2; text-align: center; }
.notice {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 14px;
  border: 1px solid rgba(110, 240, 228, 0.45);
  color: var(--neon);
  font-size: 12px;
  letter-spacing: 0.1em;
}
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 500; letter-spacing: 0.14em; }
.hero .sub { margin: 0 0 22px; font-size: 18px; color: rgba(255, 247, 248, 0.7); }
.hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }

.stage {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 28px;
  perspective: 900px;
  min-height: 280px;
}
.device {
  background: #1a1014;
  border: 1px solid rgba(255, 122, 162, 0.4);
  box-shadow: 0 0 20px rgba(110, 240, 228, 0.2);
  overflow: hidden;
}
.laptop { width: 420px; height: 250px; transform: rotateY(-16deg) rotateX(8deg); border-radius: 10px; }
.phone { width: 148px; height: 260px; transform: rotateY(18deg) rotateX(6deg); border-radius: 22px; }
.device img { width: 100%; height: 100%; object-fit: cover; object-position: top; opacity: 0.92; }

/* 四大卖点 float */
.section { padding: 84px 0; position: relative; }
.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: 1px solid var(--line); background: #fff;
}
.sell-item h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; }
.sell-item p { margin: 0; text-align: left; color: var(--ink-soft); font-size: 13px; }

/* 横向滚动卡片 */
.hscroll { overflow-x: auto; display: flex; gap: 16px; padding-bottom: 12px; scroll-snap-type: x mandatory; }
.hcard {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px;
}
.hcard img { width: 100%; height: 150px; object-fit: cover; object-position: top; margin-bottom: 10px; }
.hcard h3 { margin: 0 0 6px; font-size: 16px; font-weight: 500; }
.hcard p { margin: 0; color: var(--ink-soft); font-size: 13px; }

/* 三段 tab */
.ftabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 20px; }
.ftabs button {
  padding: 8px 14px; border: 0; letter-spacing: 0.08em; font-size: 13px; color: var(--ink-soft);
  background: linear-gradient(var(--blush), var(--blush)) padding-box,
              linear-gradient(120deg, var(--neon-2), var(--neon)) border-box;
  border: 1px solid transparent;
}
.ftabs button.is-on { color: var(--ink); box-shadow: 0 0 12px rgba(110, 240, 228, 0.25); }
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 36px; align-items: center; }
.pane { display: none; }
.pane.is-on { display: block; }
.shot-col { min-height: 280px; background: #fff; border: 1px solid var(--line); overflow: hidden; }
.shot { width: 100%; min-height: 280px; object-fit: contain; display: none; background: #fff; }
.shot.is-on { display: block; }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.icon-cell { background: #fff; padding: 20px 16px; min-height: 120px; }
.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; }
.more-box.is-on { display: grid; }
.fold-btn { display: block; margin: 22px auto 0; background: none; border: 0; border-bottom: 1px dashed var(--ink); letter-spacing: 0.14em; }
.oa-banner { width: 100%; max-width: 480px; margin: 0 0 24px; background: #2a5a4a; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { padding: 27px 29px; min-height: 169px; background: #fff; border: 1px solid rgba(6,15,26,0.07); }
.card.private { border-radius: 16px; }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.card p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.tile-shot { width: 100%; height: 130px; object-fit: cover; object-position: top; margin-top: 12px; }

/* 组织树 + 在线 */
.tree-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.tree { position: relative; padding: 20px 0; }
.tree-node {
  position: relative;
  margin: 10px auto;
  max-width: 240px;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
}
.tree-node .dot {
  display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: #39d39a;
  box-shadow: 0 0 8px #39d39a;
  margin-right: 6px;
}
.tree-row { display: flex; justify-content: center; gap: 16px; }

/* 徽章 */
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge {
  padding: 10px 16px;
  background: #fff;
  border: 1px solid var(--line);
  letter-spacing: 0.1em;
  font-size: 12px;
}

/* 走马灯 */
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 16px 0; }
.track { display: flex; gap: 10px; width: max-content; animation: marquee 80s linear infinite; }
.chip { flex: 0 0 auto; padding: 8px 14px; background: #fff; border: 1px solid var(--line); font-size: 13px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 堆叠下载卡 */
.stack { position: relative; min-height: 280px; }
.pack {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  padding: 22px;
  margin-bottom: -12px;
}
.pack:nth-child(1) { transform: rotate(-1.2deg); z-index: 3; }
.pack:nth-child(2) { transform: rotate(1.1deg); z-index: 2; }
.pack:nth-child(3) { transform: rotate(-0.4deg); z-index: 1; }
.pack h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 16px; }
.plat { padding: 16px 10px; text-align: center; background: #fff; border: 1px solid var(--line); }

/* 聊天气泡 FAQ */
.chat { max-width: 720px; }
.bubble { max-width: 86%; padding: 12px 16px; margin: 10px 0; border-radius: 16px; }
.q { background: #fff; border: 1px solid var(--line); }
.a { background: linear-gradient(135deg, rgba(255,122,162,0.18), rgba(110,240,228,0.18)); margin-left: auto; }
.faq-search {
  width: 100%; margin-bottom: 16px; padding: 12px 14px;
  border: 1px solid var(--line); background: #fff;
}
.faq-item.is-hide { display: none; }

.article { max-width: 760px; }
.article p { margin: 0 0 16px; color: var(--ink-soft); }
.article h2 { margin: 28px 0 12px; font-size: 22px; font-weight: 500; }
.crumbs { padding: 120px 0 0; font-size: 12px; color: var(--faint); letter-spacing: 0.08em; }
.page-hero { padding: 20px 0 40px; }
.page-hero h1 { margin: 8px 0 12px; font-size: 34px; font-weight: 500; letter-spacing: 0.06em; }

body.sub .index-top { position: absolute; background: rgba(255, 241, 244, 0.94); }
body.sub .nav-main, body.sub .link, body.sub .menu-toggle { color: var(--ink); }

.site-foot {
  background: transparent;
  padding: 0 0 28px;
  min-width: var(--foot-min);
}
.foot-float {
  width: var(--foot-min);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  background: #f7f8f8;
  border: 1px solid var(--line);
  padding: 36px 28px 18px;
  transform: translateY(-18px);
}
.foot-nav { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 24px; }
.foot-nav h4 { margin: 0 0 10px; font-size: 13px; letter-spacing: 0.12em; color: var(--ink); }
.foot-nav a { display: block; padding: 3px 0; color: var(--ink-soft); font-size: 13px; }
.legal { border-top: 1px dashed var(--line); padding-top: 12px; color: #828282; font-size: 12px; }

@media (max-width: 1180px) {
  .site-foot, .foot-float { min-width: 0; width: 100%; }
}
@media (max-width: 930px) {
  .hero h1 { font-size: 32px; }
  .laptop { width: 280px; height: 170px; }
  .phone { width: 110px; height: 190px; }
  .split, .tree-wrap, .cards-3 { grid-template-columns: 1fr; }
  .sell-item { width: 43%; margin-bottom: 24px; }
  .icon-grid, .platforms { grid-template-columns: 1fr 1fr; }
  .mega-num { font-size: 72px; }
}
@media (max-width: 770px) {
  .menu-toggle { display: grid; place-items: center; }
  .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; gap: 12px;
  }
  .index-top.is-solid.is-open .nav-main { background: var(--blush); }
  .sell-item { width: 100%; margin-left: 0; }
  .sell-row { margin-left: 0; }
  .stage { flex-direction: column; align-items: center; }
  .laptop, .phone { transform: none; }
}