:root {
  --ink: #151832;
  --muted: #667085;
  --paper: #fffafc;
  --pink: #ff7ea8;
  --pink-deep: #e7558a;
  --cyan: #70d6e8;
  --blue: #31436f;
  --line: #f0dfe8;
  --lime: #d8f37a;
  --shadow: 0 18px 50px rgba(33, 34, 72, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 250, 252, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.nav {
  max-width: 1160px;
  margin: auto;
  min-height: 74px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 50px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 25px; color: var(--muted); font-size: 14px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--pink-deep); }
.nav-download { color: var(--ink) !important; background: var(--lime); padding: 8px 15px; border-radius: 999px; font-weight: 700; }
.container { max-width: 1160px; margin: auto; padding: 0 24px; }
.hero { padding: 78px 0 72px; background: linear-gradient(135deg, #fff8fb 0%, #eefbff 100%); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 68px; align-items: center; }
.eyebrow { color: var(--pink-deep); font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(42px, 6vw, 74px); max-width: 650px; }
.hero-copy { margin: 22px 0 0; max-width: 600px; color: var(--muted); font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 20px; border: 0; border-radius: 12px; font-weight: 800; cursor: pointer; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(231, 85, 138, .22); }
.button-primary { color: white; background: var(--pink-deep); }
.button-secondary { color: var(--ink); background: white; border: 1px solid var(--line); }
.micro { color: var(--muted); font-size: 13px; }
.hero-art { position: relative; min-height: 360px; }
.hero-art::before { content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: var(--cyan); opacity: .45; top: 26px; right: 25px; }
.hero-art::after { content: ""; position: absolute; width: 130px; height: 130px; border-radius: 50%; background: var(--pink); opacity: .55; bottom: 6px; left: 20px; }
.hero-art img { position: absolute; z-index: 1; width: min(70%, 280px); max-height: 360px; object-fit: cover; right: 70px; top: 0; border-radius: 24px; box-shadow: var(--shadow); transform: rotate(3deg); }
.section { padding: 84px 0; }
.section-tint { background: #f6fbfd; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 34px; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); }
.section-head p { margin: 0; max-width: 480px; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { min-height: 220px; padding: 26px; border: 1px solid var(--line); background: white; border-radius: 16px; box-shadow: 0 8px 24px rgba(33, 34, 72, .04); }
.feature-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; margin-bottom: 20px; color: var(--blue); background: #e4f8fb; font-size: 20px; font-weight: 900; }
.feature:nth-child(2) .feature-icon { background: #ffe5ef; color: var(--pink-deep); }
.feature:nth-child(3) .feature-icon { background: #eff7c8; color: #627500; }
.feature h3 { font-size: 21px; margin-bottom: 10px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: start; }
.gallery figure { margin: 0; padding: 12px; background: white; border: 1px solid var(--line); border-radius: 16px; }
.gallery img { width: 100%; max-width: 400px; margin: auto; border-radius: 10px; }
.gallery figcaption { padding: 10px 3px 0; font-size: 13px; color: var(--muted); }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: start; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 25px; }
.stat { padding: 17px; border-left: 3px solid var(--pink); background: white; }
.stat strong { display: block; font-size: 25px; }
.stat span { color: var(--muted); font-size: 12px; }
.quote { margin: 0; padding: 26px; border-radius: 16px; background: var(--ink); color: white; font-size: 20px; }
.quote cite { display: block; margin-top: 16px; color: #b6c2e5; font-size: 13px; font-style: normal; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.link-card { display: flex; min-height: 155px; flex-direction: column; justify-content: space-between; padding: 23px; background: white; border: 1px solid var(--line); border-radius: 16px; }
.link-card span { color: var(--pink-deep); font-size: 13px; font-weight: 700; }
.link-card h3 { font-size: 21px; }
.link-card p { margin: 0; color: var(--muted); font-size: 14px; }
.notice { padding: 19px 22px; border: 1px dashed #c8dceb; border-radius: 12px; background: #f2fbfe; color: var(--blue); }
.page-hero { padding: 70px 0 60px; background: #161a35; color: white; }
.page-hero .eyebrow { color: var(--cyan); }
.page-hero h1 { max-width: 780px; font-size: clamp(38px, 6vw, 64px); }
.page-hero p { max-width: 710px; margin: 22px 0 0; color: #cbd3ec; font-size: 17px; }
.article { max-width: 820px; }
.article h2 { margin: 42px 0 14px; font-size: 30px; }
.article h3 { margin: 24px 0 7px; font-size: 20px; }
.article p { color: #4d566d; }
.step-list { display: grid; gap: 15px; margin-top: 28px; }
.step { display: grid; grid-template-columns: 50px 1fr; gap: 18px; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.step-num { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--pink); color: white; font-weight: 900; }
.step h3 { margin: 0 0 5px; font-size: 19px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
details { padding: 18px 20px; border: 1px solid var(--line); border-radius: 12px; background: white; }
summary { cursor: pointer; font-weight: 800; }
details p { margin: 12px 0 0; color: var(--muted); }
.footer { padding: 44px 0 30px; background: #11142a; color: #d8ddf0; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 34px; }
.footer .brand { color: white; }
.footer .brand img { width: 120px; }
.footer h3 { margin-bottom: 12px; color: white; font-size: 15px; }
.footer p, .footer a { color: #aeb6d1; font-size: 13px; }
.footer-links { display: grid; gap: 7px; }
.copyright { margin-top: 35px; padding-top: 18px; border-top: 1px solid #2b3154; color: #8992b5; font-size: 12px; }
.to-top { position: fixed; right: 20px; bottom: 20px; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: white; color: var(--ink); cursor: pointer; box-shadow: var(--shadow); }
@media (max-width: 850px) {
  .nav { min-height: 66px; padding: 0 17px; }
  .nav-links { gap: 13px; font-size: 12px; }
  .nav-download { display: none; }
  .container { padding: 0 17px; }
  .hero { padding: 55px 0; }
  .hero-grid, .split { grid-template-columns: 1fr; gap: 34px; }
  .hero-art { min-height: 330px; }
  .hero-art img { right: 50%; transform: translateX(50%) rotate(3deg); }
  .feature-grid, .link-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 60px 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 13px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  h1 { font-size: 42px; }
  .brand img { width: 100px; }
  .nav-links a:nth-child(2) { display: none; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 9px; }
  .gallery figure { padding: 7px; }
  .gallery figcaption { font-size: 11px; }
  .stat-row { gap: 7px; }
  .stat { padding: 12px 9px; }
  .stat strong { font-size: 21px; }
  .footer-grid { grid-template-columns: 1fr; }
}