:root {
  --ink: #f7f4ff;
  --muted: #aab3d4;
  --deep: #0d1228;
  --panel: #171f42;
  --panel-2: #202a52;
  --pink: #ffb4d9;
  --blue: #9ed6ff;
  --yellow: #ffe6a8;
  --line: rgba(255,255,255,.12);
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--deep);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(13,18,40,.95);
  backdrop-filter: blur(12px);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .08em; }
.brand img { width: 42px; height: 42px; }
.brand-name { color: var(--pink); font-size: 1.2rem; }
.nav-links { display: flex; align-items: center; gap: 22px; color: var(--muted); font-size: .94rem; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-download, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 12px; padding: 10px 18px; font-weight: 700; border: 1px solid transparent; transition: transform .2s, background .2s; }
.nav-download, .button.primary { color: #1b1430; background: var(--pink); }
.button.secondary { color: var(--ink); border-color: var(--line); background: transparent; }
.button:hover, .nav-download:hover { transform: translateY(-2px); }
.hero { padding: 92px 0 70px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 64px; }
.eyebrow { color: var(--blue); letter-spacing: .14em; text-transform: uppercase; font-size: .78rem; font-weight: 700; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 4.6rem); max-width: 650px; }
h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
h3 { font-size: 1.2rem; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 600px; margin: 24px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-art { min-height: 360px; display: grid; place-items: center; position: relative; }
.hero-art::before, .hero-art::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(158,214,255,.3); }
.hero-art::before { width: 310px; height: 310px; }
.hero-art::after { width: 240px; height: 240px; border-color: rgba(255,180,217,.35); }
.phone { width: min(265px, 72vw); padding: 12px; border-radius: 32px; background: #070b1b; border: 1px solid #38436f; box-shadow: 0 26px 70px rgba(0,0,0,.45); transform: rotate(5deg); position: relative; z-index: 1; }
.phone img { width: 100%; border-radius: 23px; aspect-ratio: 377 / 670; object-fit: cover; }
.spark { position: absolute; width: 8px; height: 8px; background: var(--yellow); border-radius: 50%; box-shadow: 90px 55px 0 var(--pink), -86px 96px 0 var(--blue), 105px -85px 0 var(--blue); }
.section { padding: 80px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
.section-head p { color: var(--muted); max-width: 520px; margin: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 22px; min-height: 190px; }
.feature .tag { color: var(--pink); font-size: .78rem; font-weight: 700; }
.feature p { color: var(--muted); margin: 10px 0 0; font-size: .94rem; }
.shots { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; align-items: start; }
.shot { margin: 0; }
.shot img { width: 100%; max-width: 400px; margin: 0 auto; border-radius: 18px; border: 1px solid var(--line); background: var(--panel); }
.shot figcaption { color: var(--muted); font-size: .9rem; margin-top: 10px; }
.split { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.stat-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 28px; }
.stat { padding: 18px; border-left: 2px solid var(--pink); background: var(--panel); border-radius: 0 12px 12px 0; }
.stat strong { display: block; font-size: 1.8rem; color: var(--yellow); }
.stat span { color: var(--muted); font-size: .86rem; }
.link-list { display: grid; gap: 12px; }
.link-card { display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.link-card p { color: var(--muted); margin: 4px 0 0; font-size: .9rem; }
.link-card .arrow { color: var(--pink); font-size: 1.3rem; }
.prose { max-width: 820px; }
.prose p { color: var(--muted); margin: 16px 0; }
.prose h2 { margin: 40px 0 14px; }
.prose h3 { color: var(--pink); margin: 28px 0 6px; }
.steps { display: grid; gap: 14px; counter-reset: step; }
.step { counter-increment: step; display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 20px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.step::before { content: counter(step, decimal-leading-zero); color: var(--deep); background: var(--blue); width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; font-weight: 800; }
.step p { margin: 5px 0 0; color: var(--muted); }
.faq { display: grid; gap: 12px; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 12px 0 0; color: var(--muted); }
.cta { padding: 48px; background: var(--panel-2); border: 1px solid var(--line); border-radius: 20px; display: flex; justify-content: space-between; align-items: center; gap: 22px; }
.cta p { color: var(--muted); margin: 8px 0 0; }
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: .88rem; }
.footer-row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-row p { margin: 0; }
@media (max-width: 900px) { .hero-grid, .split { grid-template-columns: 1fr; } .hero-art { min-height: 300px; } .feature-grid { grid-template-columns: repeat(2,1fr); } .shots { grid-template-columns: repeat(2,1fr); } .nav-links { gap: 12px; } }
@media (max-width: 620px) { .wrap { width: min(var(--max), calc(100% - 28px)); } .nav { min-height: 68px; gap: 12px; } .brand img { width: 36px; height: 36px; } .nav-links { gap: 0; } .nav-links a:not(.nav-download) { display: none; } .nav-links .nav-download { display: inline-flex; padding: 8px 12px; font-size: .84rem; } .hero { padding: 62px 0 48px; } .hero p { font-size: 1rem; } .feature-grid, .shots, .stat-row { grid-template-columns: 1fr; } .section { padding: 56px 0; } .section-head { display: block; } .section-head p { margin-top: 12px; } .cta { padding: 28px 22px; display: block; } .cta .button { margin-top: 18px; } }