:root {
  --ink: #1b2130;
  --muted: #626b80;
  --line: #e8eaf2;
  --tint: #f7f8fc;
  --brand: #7b5cf0;
  --brand-2: #d644cd;
  --brand-3: #f5578a;
  --blue: #1677ff;
  --grad: linear-gradient(120deg, #7b5cf0 0%, #d644cd 52%, #f5578a 100%);
  --shadow: 0 12px 36px rgba(28, 32, 66, .08);
  --shadow-lg: 0 24px 70px rgba(28, 22, 70, .18);
  --radius: 18px;
  --wrap: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; }
h1, h2, h3 { margin: 0; line-height: 1.25; letter-spacing: -.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; border-radius: 6px; }
.wrap { width: calc(100% - 48px); max-width: var(--wrap); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: #fff; padding: 10px 16px; border-radius: 8px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(232, 234, 242, .9);
  transition: box-shadow .2s;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(28, 32, 66, .07); }
.nav { height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.brand img { border-radius: 10px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links > a { font-size: 14px; font-weight: 600; color: #414a60; transition: color .2s; }
.nav-links > a:hover { color: var(--brand); }
.nav-links .nav-cta {
  background: var(--ink); color: #fff; padding: 9px 18px; border-radius: 999px;
  font-size: 13.5px; transition: transform .2s, background .2s;
}
.nav-links .nav-cta:hover { background: var(--brand); transform: translateY(-1px); color: #fff; }
.nav-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; padding: 9px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; margin: 5px 0; transition: .2s; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px; font-size: 14.5px; font-weight: 700;
  border: 1px solid transparent; cursor: pointer; transition: transform .18s, box-shadow .18s, background .18s, opacity .18s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 26px rgba(123, 92, 240, .32); }
.btn-primary:hover { box-shadow: 0 16px 34px rgba(123, 92, 240, .42); }
.btn-ghost { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .34); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .18); }
.btn-outline { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-block { width: 100%; }
.btn.disabled { opacity: .55; pointer-events: none; filter: grayscale(.5); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: #171331; color: #fff; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.09) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .5;
}
.hero-glow {
  position: absolute; width: 760px; height: 760px; right: -180px; top: -320px;
  background: radial-gradient(circle, rgba(214, 68, 205, .5), rgba(123, 92, 240, .22) 45%, transparent 70%);
  filter: blur(10px); pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; align-items: center; padding: 88px 0 96px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-size: 12.5px; font-weight: 600;
  padding: 7px 14px; border-radius: 999px; background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18); color: #e8e2ff; letter-spacing: .02em;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #68e2b0; box-shadow: 0 0 0 4px rgba(104,226,176,.2); }
.eyebrow b { color: #fff; }
.hero h1 { font-size: clamp(38px, 4.6vw, 60px); font-weight: 800; margin: 22px 0 18px; letter-spacing: -.035em; }
.hero h1 span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 16px; line-height: 1.85; color: #c9c8dd; max-width: 520px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 26px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 13.5px; color: #d7d5e8; }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.tick { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: rgba(104,226,176,.16); color: #7ef0be; font-size: 11px; font-weight: 800; }
.hero-points b { color: #fff; }

/* mock client window */
.hero-visual { position: relative; display: flex; justify-content: center; padding: 30px 0; }
.app-window {
  width: 316px; max-width: 100%; background: #eff3f9; border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-lg); transform: rotate(-1.5deg); border: 1px solid rgba(255,255,255,.32);
}
.app-bar { height: 40px; background: #fff; display: flex; align-items: center; gap: 8px; padding: 0 14px; font-size: 12px; font-weight: 700; color: #3d4555; }
.app-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--grad); }
.app-bar-right { margin-left: auto; color: #a8afbd; font-size: 11px; letter-spacing: -.08em; }
.app-body { padding: 14px; }
.app-member { display: flex; align-items: center; gap: 8px; background: #fff; border-radius: 10px; padding: 9px 11px; font-size: 11px; color: #6b7383; }
.app-badge { background: linear-gradient(120deg,#f7d488,#e5a94a); color: #513a08; padding: 3px 8px; border-radius: 6px; font-weight: 800; font-size: 10px; }
.app-dial {
  width: 168px; height: 168px; margin: 22px auto 16px; border-radius: 50%;
  background: conic-gradient(from 210deg, #7b5cf0, #d644cd, #f5578a, #7b5cf0);
  padding: 9px; box-shadow: 0 12px 30px rgba(123,92,240,.35);
}
.app-dial-inner { width: 100%; height: 100%; border-radius: 50%; background: #fff; display: grid; place-content: center; text-align: center; }
.app-power { color: var(--brand); margin: 0 auto; }
.app-dial-text { font-size: 13px; font-weight: 700; color: #3d4555; margin-top: 6px; }
.app-status { text-align: center; font-size: 11.5px; color: #6b7383; margin-bottom: 14px; }
.pulse { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #37c98a; margin-right: 5px; box-shadow: 0 0 0 3px rgba(55,201,138,.18); }
.app-row { display: flex; justify-content: space-between; background: #fff; border-radius: 9px; padding: 9px 11px; font-size: 11px; color: #8a92a3; margin-bottom: 8px; }
.app-row b { color: #3d4555; font-weight: 700; }
.app-foot { font-size: 11px; color: #9aa3b2; padding: 8px 2px 0; }
.float-card {
  position: absolute; display: flex; align-items: center; gap: 10px; background: #fff; color: var(--ink);
  border-radius: 13px; padding: 11px 15px; box-shadow: 0 14px 34px rgba(10,8,40,.28); font-size: 12px;
}
.float-card b { display: block; font-size: 12.5px; }
.float-card small { color: #8a92a3; font-size: 10.5px; }
.float-icon { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: #f0ecff; font-size: 15px; }
.float-top { left: 3%; top: -30px; }
.float-card-2 { right: 3%; bottom: -30px; }
.float-card-2 .float-icon { background: #ffeaf2; }

/* ---------- stats ---------- */
.stats { background: #fff; border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 30px 0; }
.stat { text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.03em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat b small { font-size: 14px; margin-left: 2px; }
.stat span { font-size: 13px; color: var(--muted); }

/* ---------- sections ---------- */
.section { padding: 92px 0; }
.section-tint { background: var(--tint); }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.kicker { display: block; font-size: 12.5px; font-weight: 800; letter-spacing: .14em; color: var(--brand); text-transform: uppercase; margin-bottom: 12px; }
.kicker-light { color: #c9b8ff; }
.section-head h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 15px; }

.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-size: 21px; margin-bottom: 20px; }
.icon-blue { background: #eaf2ff; color: #1677ff; }
.icon-pink { background: #ffeaf2; color: #e0457f; }
.icon-purple { background: #f0ecff; color: #7b5cf0; }
.icon-green { background: #e6f8f0; color: #1ea878; }
.card h3 { font-size: 17px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* tiers */
.tier-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 390px)); gap: 22px; justify-content: center; }
.tier { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 32px; }
.tier-featured { border: 2px solid transparent; background: linear-gradient(#fff,#fff) padding-box, var(--grad) border-box; box-shadow: var(--shadow); }
.tier-ribbon { position: absolute; top: -13px; left: 32px; background: var(--grad); color: #fff; font-size: 11.5px; font-weight: 700; padding: 5px 14px; border-radius: 999px; }
.tier-top { display: flex; align-items: center; justify-content: space-between; }
.tier-name { font-size: 21px; font-weight: 800; }
.tier-tag { font-size: 11.5px; color: var(--muted); background: var(--tint); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; }
.tier-featured .tier-tag { color: #fff; background: var(--grad); border-color: transparent; }
.tier-desc { color: var(--muted); font-size: 13.5px; margin: 8px 0 22px; }
.tier ul { display: grid; gap: 12px; margin-bottom: 26px; }
.tier li { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.tier li span { display: grid; place-items: center; width: 19px; height: 19px; border-radius: 50%; background: #eaf8f1; color: #1ea878; font-size: 11px; font-weight: 800; flex: none; }
.tier li.off { color: #a3aabd; }
.tier li.off span { background: #f2f3f7; color: #a3aabd; }
.tier .btn { width: 100%; }
.fine-print { text-align: center; color: #8a92a3; font-size: 12.5px; margin-top: 24px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.steps li { position: relative; padding: 26px 24px 24px; border-top: 2px solid var(--line); }
.steps li::before { content: ""; position: absolute; top: -2px; left: 0; width: 64px; height: 2px; background: var(--grad); }
.step-num { display: block; font-size: 13px; font-weight: 800; color: var(--brand); letter-spacing: .08em; margin-bottom: 12px; }
.steps h3 { font-size: 18px; margin-bottom: 10px; }
.steps p { color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* download */
.download { background: #171331; color: #fff; position: relative; overflow: hidden; }
.download::before { content: ""; position: absolute; width: 620px; height: 620px; left: -220px; bottom: -380px; background: radial-gradient(circle, rgba(123,92,240,.4), transparent 70%); }
.download-inner { position: relative; display: grid; grid-template-columns: 1fr 360px; gap: 64px; align-items: center; padding: 78px 0; }
.download h2 { font-size: clamp(28px, 3.2vw, 40px); margin: 10px 0 16px; }
.download-inner > div > p { color: #c9c8dd; max-width: 520px; line-height: 1.9; }
.download-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.download-meta span { font-size: 12.5px; color: #d7d5e8; background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.16); padding: 6px 13px; border-radius: 999px; }
.download-meta b { color: #fff; }
.download-box { background: #fff; color: var(--ink); border-radius: 20px; padding: 28px; text-align: center; box-shadow: var(--shadow-lg); }
.download-box img { margin: 0 auto 14px; border-radius: 13px; }
.download-box h3 { font-size: 18px; }
.download-box > p { color: var(--muted); font-size: 13px; margin: 8px 0 20px; min-height: 20px; }
.download-box .btn { margin-bottom: 12px; }
.download-alt { display: block; font-size: 13px; color: var(--brand); font-weight: 600; margin-bottom: 12px; }
.download-box small { display: block; color: #9aa3b2; font-size: 11.5px; line-height: 1.7; text-align: left; }

/* faq */
.faq-wrap { max-width: 860px; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; transition: border-color .2s, box-shadow .2s; }
.faq-list details[open] { border-color: #d9d0ff; box-shadow: var(--shadow); }
.faq-list summary { font-size: 15px; font-weight: 700; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 20px; font-weight: 400; color: var(--brand); line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { color: var(--muted); font-size: 13.5px; line-height: 1.9; margin-top: 14px; }
.support-card { margin-top: 26px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; background: var(--tint); border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; font-size: 13.5px; color: var(--muted); }
.support-card b { color: var(--ink); font-size: 15px; }

/* footer */
.site-footer { background: #101024; color: #b9b7ce; padding: 48px 0 36px; }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: start; }
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.footer-brand img { border-radius: 9px; }
.footer-brand b { display: block; font-size: 16px; }
.footer-brand small { color: #8c8aa8; font-size: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.copyright { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; font-size: 12.5px; color: #85839f; line-height: 1.8; }
.copyright small { font-size: 12px; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 48px; padding: 68px 0 76px; }
  .hero-visual { order: 2; }
  .float-top { left: 4%; }
  .float-card-2 { right: 4%; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .download-inner { grid-template-columns: 1fr 320px; gap: 36px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .hero-visual { min-width: 0; }
  .lead { max-width: 100%; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; left: 0; right: 0; top: 68px;
    background: #fff; padding: 14px 20px 20px; flex-direction: column; align-items: stretch; gap: 4px;
    border-bottom: 1px solid var(--line); box-shadow: 0 14px 28px rgba(28,32,66,.1);
  }
  .nav-links.open { display: flex; }
  .nav-links > a { padding: 10px 4px; }
  .nav-links .nav-cta { text-align: center; margin-top: 6px; }
  .hero h1 { font-size: 38px; }
  .hero-inner { padding: 56px 0 64px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 22px 0; }
  .stat:nth-child(2) { border-right: 0; }
  .section { padding: 64px 0; }
  .feature-grid, .steps, .tier-grid { grid-template-columns: 1fr; }
  .tier-grid { max-width: 440px; margin-inline: auto; }
  .download-inner { grid-template-columns: 1fr; padding: 60px 0; gap: 32px; }
  .download-box { max-width: 380px; }
  .footer-inner { grid-template-columns: 1fr; }
  .float-card { display: none; }
  .app-window { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}