:root {
  color: #172033;
  background: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body { margin: 0; min-width: 320px; }

a { color: inherit; }

.overview,
.download-section,
.site-footer {
  width: 100%;
  padding-inline: 72px;
}

.page-frame { width: 100%; }

.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  padding-inline: 72px;
}

.brand { display: inline-flex; align-items: center; }

.brand img { display: block; width: 180px; height: 68px; object-fit: contain; }

.header-login {
  padding: 9px 14px;
  color: #1a477e;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid rgba(26, 71, 126, 0.2);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.56);
  backdrop-filter: blur(8px);
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.header-login:hover { color: #0f5fca; border-color: rgba(15, 95, 202, 0.38); background: rgba(255, 255, 255, 0.86); transform: translateY(-1px); }

.hero {
  position: relative;
  overflow: hidden;
  background: #f7fbff;
}

.hero__ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.site-header,
.hero__content,
.hero__footer { z-index: 1; }

.hero__content {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  padding: 120px 0;
}

.hero__footer {
  position: relative;
  height: 65px;
  background: url("assets/brand/hero-footer-gradient.png") center / 100% 100% no-repeat;
}

.hero__visual {
  position: relative;
  min-height: 356px;
  overflow: hidden;
  background: transparent;
  cursor: crosshair;
}

.hero__visual canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  min-width: 0;
  padding: 0 72px 0 0;
  text-align: right;
}

.hero__copy > * { animation: content-enter 620ms ease both; }
.hero__copy > :nth-child(2) { animation-delay: 80ms; }
.hero__copy > :nth-child(3) { animation-delay: 150ms; }
.hero__copy > :nth-child(4) { animation-delay: 220ms; }

.eyebrow { margin: 0; color: #1469da; font-size: 14px; font-weight: 650; line-height: 1.5; letter-spacing: 0; }
.hero__copy .eyebrow { font-size: 16px; }

h1, h2, h3, p { margin-top: 0; }

.hero h1 { margin: 10px 0 16px; color: #102d61; font-size: 84px; line-height: 1.1; letter-spacing: 0; }

.hero__summary { width: min(600px, 100%); margin-bottom: 0; color: #536783; font-size: 20px; line-height: 1.65; white-space: nowrap; }

.hero__actions { display: flex; align-items: center; flex-direction: column; gap: 9px; margin-top: 30px; }

.hero__actions .button { min-width: 208px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 164px;
  height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 160ms ease, transform 160ms ease;
}

.button--primary { color: #fff; background: #1677ff; }

.button--primary:hover { background: #095ed0; transform: translateY(-1px); }

.button--primary:focus-visible, .header-login:focus-visible { outline: 3px solid #8fc3ff; outline-offset: 3px; }

.download-meta { margin: 0; color: #677890; font-size: 14px; white-space: nowrap; }

.overview { display: grid; grid-template-columns: minmax(300px, 3fr) minmax(0, 5fr); gap: clamp(64px, 9.5vw, 120px); padding-top: 120px; padding-bottom: 120px; }

.overview__heading h2 { max-width: 370px; margin: 12px 0 0; font-size: clamp(27px, 3vw, 38px); line-height: 1.38; letter-spacing: 0; }

.feature-list { border-top: 1px solid #dce5f0; }

.feature { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 20px; padding: 25px 0; text-align: right; border-bottom: 1px solid #dce5f0; transition: padding-left 180ms ease, background-color 180ms ease; }

.feature:hover { padding-left: 12px; background: #f7fbff; }

.feature__number { justify-self: end; color: #1469da; font-size: 14px; font-weight: 700; line-height: 1.6; }

.feature h3 { margin-bottom: 6px; font-size: 18px; line-height: 1.45; }

.feature p { margin-bottom: 0; color: #64758c; font-size: 14px; line-height: 1.7; }

.download-section { display: flex; align-items: center; justify-content: space-between; gap: 48px; padding-top: 120px; padding-bottom: 120px; border-top: 1px solid #dce5f0; }

.download-section h2 { margin-bottom: 10px; font-size: clamp(26px, 3vw, 36px); line-height: 1.35; letter-spacing: 0; }

.download-section__copy { max-width: 610px; margin-bottom: 0; color: #64758c; font-size: 15px; line-height: 1.7; }

.site-footer { display: flex; justify-content: space-between; gap: 24px; padding-top: 22px; padding-bottom: 28px; color: #78869a; font-size: 12px; border-top: 1px solid #edf1f6; }

.site-footer a { text-decoration: none; }

.site-footer a:hover { color: #1369d8; }

@keyframes content-enter {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 720px) {
  .overview, .download-section, .site-footer { width: 100%; padding-inline: 20px; }
  .site-header { width: 100%; height: 64px; padding-inline: 20px; }
  .brand img { width: 116px; height: 44px; }
  .header-login { padding: 7px 10px; font-size: 13px; }
  .hero__content { grid-template-columns: 1fr; gap: 36px; padding: 60px 20px; }
  .hero__visual { min-height: 210px; }
  .hero__copy { align-items: flex-start; padding: 0; text-align: left; }
  .hero h1 { font-size: 48px; }
  .hero__summary { width: 100%; color: #485f7f; font-size: 16px; white-space: normal; }
  .hero__actions { align-items: center; gap: 11px; margin-top: 24px; }
  .overview { display: block; padding-top: 64px; padding-bottom: 64px; }
  .feature-list { margin-top: 34px; }
  .download-section { align-items: flex-start; flex-direction: column; gap: 24px; padding-top: 52px; padding-bottom: 52px; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
}