:root {
  --blue: #2aabee;
  --blue-deep: #229ed9;
  --violet: #1c8ad4;
  --ink: #1e293b;
  --muted: #5c6680;
  --line: #e8edf7;
  --soft: #eef3ff;
  --cream: #eeebdb;
  --bg: #ffffff;
  --green: #42d77e;
  --orange: #ff8c4b;
  --radius: 22px;
  --shadow: 0 18px 50px rgba(59, 91, 219, 0.12);
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Noto Sans SC", "Overpass", system-ui, sans-serif;
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.skip {
  position: absolute; left: -999px;
}
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 9; }

/* header */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .02em; }
.brand img { width: 36px; height: 36px; border-radius: 50%; }
.nav-links { display: flex; gap: 28px; color: var(--muted); font-weight: 500; }
.nav-links a:hover { color: var(--blue-deep); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.menu-btn {
  display: none; border: 0; background: none; font-size: 26px; cursor: pointer;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; cursor: pointer; font-weight: 700;
  border-radius: 999px; padding: 12px 22px; font-size: 16px;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  color: #fff;
  background: linear-gradient(90deg, #2aabee 0%, #1c8ad4 100%);
  box-shadow: 0 10px 24px rgba(42,171,238,.28);
}
.btn-ghost {
  background: #fff; color: var(--blue-deep); border: 1px solid #d9e3ff;
}

/* hero */
.hero {
  position: relative; overflow: hidden;
  padding: 56px 0 28px;
}
.blob {
  position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none;
}
.blob-a { width: 220px; height: 220px; background: #8ec5ff; top: 40px; left: -80px; opacity: .55; }
.blob-b { width: 160px; height: 160px; background: #4f80ff; right: 8%; top: 18px; opacity: .35; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center;
  position: relative;
}
.kicker {
  display: inline-block; color: var(--blue-deep); font-weight: 700; margin-bottom: 10px;
}
h1 {
  font-family: Overpass, "Noto Sans SC", sans-serif;
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.18; margin: 0 0 16px; letter-spacing: -.02em;
}
h1 em { font-style: normal; color: var(--blue); }
.lead { color: var(--muted); font-size: 16px; max-width: 540px; margin: 0 0 22px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.dash {
  background: #fff; border-radius: 28px; box-shadow: var(--shadow);
  padding: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  position: relative;
}
.dash-side {
  position: absolute; right: -18px; top: 18px; display: flex; flex-direction: column; gap: 8px;
}
.chip {
  width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center;
  color: #fff; font-size: 11px; font-weight: 700; box-shadow: 0 6px 16px rgba(0,0,0,.12);
}
.chip svg { display: block; }
.panel { background: #f7f9ff; border-radius: 18px; padding: 16px; }
.panel h3 { margin: 0 0 8px; font-size: 14px; color: var(--muted); font-weight: 600; }
.donut {
  width: 140px; height: 140px; margin: 8px auto;
  border-radius: 50%;
  background: conic-gradient(#2aabee 0 42%, #42d77e 42% 70%, #ff8c4b 70% 88%, #94a3b8 88% 100%);
  mask: radial-gradient(circle 46px at center, transparent 46px, #000 47px);
  -webkit-mask: radial-gradient(circle 46px at center, transparent 46px, #000 47px);
}
.legend { font-size: 12px; color: var(--muted); display: grid; gap: 4px; }
.num { font-size: 22px; font-weight: 800; letter-spacing: -.03em; }
.up { color: var(--green); font-size: 12px; font-weight: 700; }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 70px; margin-top: 10px; }
.bars i { display: block; width: 18px; border-radius: 6px 6px 0 0; background: var(--blue); }
.apps { display: flex; justify-content: space-around; padding-top: 8px; text-align: center; font-size: 12px; color: var(--muted); }
.app-ico { width: 42px; height: 42px; border-radius: 50%; margin: 0 auto 6px; display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 700; }
.app-ico svg { display: block; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  padding: 18px 0 50px;
}
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 22px 18px;
  text-align: center; box-shadow: 0 8px 24px rgba(30,41,59,.04);
}
.stat b { display: block; font-size: 28px; color: var(--blue-deep); margin-bottom: 4px; }
.stat span { color: var(--muted); font-size: 14px; }

/* sections */
section { padding: 72px 0; }
.center { text-align: center; }
.sub { color: var(--muted); max-width: 640px; margin: 8px auto 0; }
h2 { font-size: clamp(26px, 3vw, 38px); line-height: 1.25; margin: 0; }
h2 em { font-style: normal; color: var(--blue); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.bullets { padding: 0; margin: 18px 0 0; list-style: none; }
.bullets li { position: relative; padding: 8px 0 8px 28px; color: var(--muted); }
.bullets li::before {
  content: ""; position: absolute; left: 0; top: 16px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--blue);
}

.funnel { width: min(420px, 100%); margin: 0 auto; }
.funnel .layer {
  color: #fff; text-align: center; padding: 16px 12px; margin: 0 auto 8px;
  background: linear-gradient(180deg, #6d8dff, #4f80ff);
  font-weight: 700; box-shadow: 0 8px 18px rgba(79,128,255,.18);
}
.funnel .l1 { width: 100%; border-radius: 18px 18px 10px 10px; }
.funnel .l2 { width: 86%; border-radius: 10px; background: linear-gradient(180deg, #5b74f0, #3b5bdb); }
.funnel .l3 { width: 72%; border-radius: 10px; background: linear-gradient(180deg, #4b63e4, #3a4fd0); }
.funnel .l4 { width: 58%; border-radius: 10px 10px 18px 18px; background: linear-gradient(180deg, #3b5bdb, #5432de); }
.people { display: flex; justify-content: center; gap: 8px; margin-top: 10px; opacity: .85; }

.grid-6 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.adv {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 22px; text-align: center; transition: transform .18s ease, box-shadow .18s;
}
.adv:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.adv .ico {
  width: 86px; height: 86px; margin: 0 auto 14px; border-radius: 50%;
  display: grid; place-items: center;
}
.adv .ico svg { width: 36px; height: 36px; display: block; }
.adv h3 { margin: 0 0 8px; font-size: 20px; }
.adv p { margin: 0; color: var(--muted); font-size: 14px; }

.why { background: linear-gradient(180deg, #f8faff, #fff); }
.why-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; margin-top: 28px; }
.why-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.why-card { background: #fff; border-radius: 18px; padding: 20px; border: 1px solid var(--line); }
.why-card h3 { margin: 0 0 6px; font-size: 18px; }
.why-card p { margin: 0; color: var(--muted); font-size: 14px; }
.cubes { border-radius: 28px; box-shadow: var(--shadow); width: 100%; height: auto; object-fit: cover; }

.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 32px; }
.prod {
  border-radius: 24px; padding: 28px 24px; color: #fff; min-height: 230px;
  display: flex; flex-direction: column; justify-content: space-between;
  background: linear-gradient(160deg, #5c6680, #3e4857);
}
.prod.tg { background: linear-gradient(160deg, #2aabee, #1c8ad4); }
.prod.wa { background: linear-gradient(160deg, #25d366, #128c7e); }
.prod h3 { margin: 0 0 8px; font-size: 22px; }
.prod p { margin: 0; opacity: .92; }
.prod a { color: #fff; font-weight: 700; margin-top: 16px; }

.faq { max-width: 820px; margin: 28px auto 0; }
details {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 18px; margin-bottom: 12px;
}
summary { cursor: pointer; font-weight: 700; }
details p { margin: 10px 0 0; color: var(--muted); }

.cta-band {
  background: linear-gradient(90deg, #2aabee, #1c8ad4);
  color: #fff; border-radius: 28px; padding: 42px 32px; text-align: center;
}
.cta-band .btn { background: #fff; color: var(--blue-deep); }
.cta-band .btn-ghost-light {
  background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.7);
}
.cta-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.foot-links a { color: var(--blue-deep); font-weight: 600; }

footer {
  padding: 36px 0 28px; color: var(--muted); border-top: 1px solid var(--line); font-size: 14px;
}
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 980px) {
  .hero-grid, .split, .why-grid { grid-template-columns: 1fr; }
  .stats, .grid-6, .products, .why-list { grid-template-columns: 1fr 1fr; }
  .dash-side { display: none; }
}
@media (max-width: 760px) {
  .nav-links, .nav-cta { display: none; }
  .nav.open .nav-links, .nav.open .nav-cta {
    display: flex; flex-direction: column; position: absolute; left: 0; right: 0; top: 72px;
    background: #fff; padding: 16px 20px 22px; border-bottom: 1px solid var(--line);
  }
  .menu-btn { display: block; }
  .stats, .grid-6, .products, .why-list { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
}