:root {
  color-scheme: light;
  --ink: #161918;
  --muted: #5f6763;
  --subtle: #f6f8f3;
  --paper: #ffffff;
  --line: #dfe7e1;
  --teal: #08766f;
  --coral: #d75a43;
  --shadow: 0 22px 70px rgba(20, 31, 28, 0.16);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  letter-spacing: 0;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  padding: 10px 14px;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(223, 231, 225, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 760;
}

.brand-logo {
  width: 56px;
  height: 29px;
  flex: 0 0 auto;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 6px 18px rgba(0, 40, 42, 0.12);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover {
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 78svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 104px clamp(20px, 5vw, 72px) 64px;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.hero-overlay {
  background:
    linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.97) 0%,
      rgba(255, 255, 255, 0.86) 44%,
      rgba(255, 255, 255, 0.18) 76%,
      rgba(255, 255, 255, 0) 100%
    ),
    linear-gradient(180deg, rgba(255, 255, 255, 0) 72%, #fff 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: 4.4rem;
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 2.45rem;
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
  line-height: 1.25;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-copy {
  width: min(560px, 100%);
  margin-bottom: 0;
  color: #38413d;
  font-size: 1.14rem;
}

.section {
  padding: 86px clamp(20px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 40px;
  align-items: end;
  max-width: 1160px;
  margin: 0 auto 38px;
}

.section-heading .eyebrow {
  margin-bottom: 6px;
}

.audience-section {
  background: var(--subtle);
}

.use-case-list {
  display: grid;
  gap: 24px;
  max-width: 1160px;
  margin: 0 auto;
}

.use-case-row {
  display: grid;
  grid-template-columns: minmax(280px, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 48px rgba(20, 31, 28, 0.06);
}

.use-case-row-reverse {
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
}

.use-case-row-reverse .use-case-media {
  order: 2;
}

.use-case-media {
  overflow: hidden;
  border-radius: 8px;
  background: #dfe7e1;
  aspect-ratio: 4 / 3;
}

.use-case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.use-case-content {
  padding: clamp(8px, 2vw, 20px);
}

.case-label {
  margin-bottom: 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 780;
  text-transform: uppercase;
}

.use-case-content h3 {
  margin-bottom: 16px;
  font-size: 1.65rem;
}

.use-case-content p {
  margin-bottom: 18px;
  font-size: 1.02rem;
}

.use-case-content ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
}

.use-case-content li {
  position: relative;
  padding-left: 18px;
  line-height: 1.65;
}

.use-case-content li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
}

.status-section {
  background: #111715;
  color: #fff;
}

.status-copy {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.status-logo {
  width: min(190px, 42vw);
  height: auto;
  margin: 0 auto 30px;
  border-radius: 16px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.25);
}

.status-section .eyebrow {
  color: #f2b84b;
}

.status-section h2 {
  margin-bottom: 18px;
}

.status-section p {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 980px) {
  .site-header {
    position: sticky;
  }

  .hero {
    min-height: 72svh;
    padding-top: 76px;
  }

  .hero-media {
    object-position: 62% center;
  }

  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.05rem;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: center;
    padding: 14px 18px;
  }

  .brand {
    font-size: 0.96rem;
  }

  .brand-logo {
    width: 46px;
    height: 26px;
  }

  .nav-links {
    gap: 16px;
    font-size: 0.88rem;
  }

  .hero {
    min-height: 68svh;
    padding: 48px 18px 44px;
  }

  .hero-overlay {
    background:
      linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.97) 0%,
        rgba(255, 255, 255, 0.86) 60%,
        rgba(255, 255, 255, 0.24) 100%
      ),
      linear-gradient(180deg, rgba(255, 255, 255, 0) 70%, #fff 100%);
  }

  h1 {
    font-size: 2.78rem;
    line-height: 1.05;
  }

  h2 {
    font-size: 1.82rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .section {
    padding: 58px 18px;
  }

  .use-case-list {
    grid-template-columns: 1fr;
  }

  .use-case-row,
  .use-case-row-reverse {
    grid-template-columns: 1fr;
    gap: 18px;
    min-height: auto;
    padding: 14px;
  }

  .use-case-row-reverse .use-case-media {
    order: 0;
  }

  .use-case-content {
    padding: 8px 8px 12px;
  }

  .use-case-content h3 {
    font-size: 1.36rem;
  }

  .site-footer {
    flex-direction: column;
  }
}