:root {
  color-scheme: light;
  --bg: #041910;
  --bg-soft: #0a2517;
  --panel: rgba(10, 29, 20, 0.82);
  --panel-light: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.12);
  --text: #ebfff5;
  --text-soft: rgba(235, 255, 245, 0.74);
  --green: #22c55e;
  --green-strong: #00d26a;
  --green-soft: rgba(34, 197, 94, 0.14);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.24);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(29, 228, 119, 0.28), transparent 26%),
    radial-gradient(circle at 80% 10%, rgba(34, 197, 94, 0.16), transparent 24%),
    linear-gradient(180deg, #03150d 0%, #071d13 32%, #f4fbf7 32%, #f5faf7 100%);
  color: #102116;
}

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

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

.page-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 12px 24px rgba(18, 179, 77, 0.28);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-soft);
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--green-strong);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.header-cta,
.button-primary {
  color: #03150d;
  background: linear-gradient(135deg, #71f08c 0%, #00d26a 100%);
  box-shadow: 0 16px 40px rgba(0, 210, 106, 0.24);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

main {
  display: block;
}

.hero,
.section,
.site-footer {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 40px;
  padding: 48px 0 88px;
  color: var(--text);
}

.hero-copy {
  padding: 42px 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #b5f8c8;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2 {
  margin: 20px 0 0;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(42px, 6vw, 76px);
}

.hero-text,
.section-heading p,
.feature-copy p,
.feature-copy li,
.workflow-grid p,
.showcase-copy p,
.scenario-grid p,
.pricing-layout p,
.pricing-benefits li,
.contact-panel p,
.site-footer p {
  color: var(--text-soft);
  line-height: 1.75;
}

.hero-text {
  max-width: 620px;
  margin: 24px 0 0;
  font-size: 18px;
}

.hero-actions,
.contact-actions,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin-top: 32px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.hero-metrics article,
.workflow-grid article,
.scenario-grid article,
.pricing-cards article,
.contact-grid article,
.showcase-card,
.feature-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-metrics article {
  padding: 24px;
}

.hero-metrics strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 32px;
}

.hero-metrics span {
  color: var(--text-soft);
  font-size: 14px;
}

.hero-visuals {
  position: relative;
  min-height: 780px;
  padding-top: 24px;
}

.floating-card {
  position: absolute;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.06));
  box-shadow:
    0 34px 90px rgba(0, 0, 0, 0.28),
    0 10px 28px rgba(8, 24, 15, 0.18);
  backdrop-filter: blur(12px);
}

.floating-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(3, 21, 13, 0.74);
  color: #ccffe0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.card-login {
  top: 54px;
  left: 32px;
  z-index: 3;
  width: 58%;
  height: 620px;
  transform: none;
}

.card-dialogue {
  right: 12px;
  bottom: 46px;
  z-index: 2;
  width: 41%;
  height: 320px;
  transform: rotate(5deg);
}

.card-vip {
  top: 18px;
  right: 34px;
  z-index: 4;
  width: 34%;
  height: 286px;
  transform: rotate(4deg);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  transform: translateY(-32px);
}

.signal-strip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 62px;
  padding: 0 12px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.96);
  color: #0d2015;
  font-weight: 600;
  box-shadow: 0 16px 48px rgba(6, 34, 19, 0.12);
}

.section {
  padding: 88px 0 0;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 32px;
  text-align: center;
}

.section-heading p {
  margin: 18px 0 0;
  color: rgba(16, 33, 22, 0.72);
}

.feature-grid,
.showcase-grid,
.scenario-grid,
.contact-grid {
  display: grid;
  gap: 22px;
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  padding: 26px;
  border: 1px solid rgba(15, 36, 24, 0.08);
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(7, 35, 19, 0.08);
}

.feature-copy h3,
.showcase-copy h3,
.workflow-grid h3,
.scenario-grid h3,
.pricing-benefits h3,
.contact-grid h3 {
  margin: 0;
  font-size: 24px;
}

.feature-copy p,
.showcase-copy p,
.workflow-grid p,
.scenario-grid p,
.pricing-layout p,
.pricing-benefits li,
.contact-panel p {
  color: rgba(16, 33, 22, 0.72);
}

.feature-copy ul,
.pricing-benefits ul {
  margin: 16px 0 0;
  padding-left: 20px;
}

.feature-card img,
.showcase-card img {
  width: 100%;
  border-radius: 22px;
  background: linear-gradient(180deg, #082116, #04170f);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.workflow-grid article {
  padding: 28px;
  border: 1px solid rgba(12, 34, 22, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(242, 251, 246, 0.94)),
    var(--green-soft);
  box-shadow: 0 24px 60px rgba(7, 35, 19, 0.08);
}

.workflow-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 16px;
  background: rgba(34, 197, 94, 0.14);
  color: #119c4c;
  font-weight: 700;
}

.showcase-grid {
  grid-template-columns: 1.25fr 0.75fr 0.75fr;
  align-items: stretch;
}

.showcase-card {
  padding: 24px;
  border: 1px solid rgba(12, 34, 22, 0.08);
  background: linear-gradient(180deg, #0a2517 0%, #081b12 100%);
}

.showcase-copy {
  margin-bottom: 18px;
  color: var(--text);
}

.showcase-copy p {
  margin-top: 10px;
  color: rgba(235, 255, 245, 0.72);
}

.wide-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
  align-items: center;
}

.scenario-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.scenario-grid article {
  padding: 30px;
  border: 1px solid rgba(12, 34, 22, 0.08);
  background:
    linear-gradient(180deg, rgba(9, 31, 19, 0.98), rgba(7, 24, 15, 0.96)),
    var(--green-soft);
}

.scenario-grid h3,
.scenario-grid p {
  color: var(--text);
}

.scenario-grid p {
  color: rgba(235, 255, 245, 0.72);
}

.pricing-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items: stretch;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.pricing-cards article,
.pricing-benefits {
  padding: 28px;
  border: 1px solid rgba(12, 34, 22, 0.08);
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(7, 35, 19, 0.08);
}

.featured-plan {
  position: relative;
  border-color: rgba(0, 210, 106, 0.28);
  background: linear-gradient(180deg, rgba(34, 197, 94, 0.08), rgba(255, 255, 255, 0.98));
}

.plan-name {
  color: #188f49;
  font-size: 15px;
  font-weight: 700;
}

.plan-price {
  margin: 16px 0;
  color: #0e2315;
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.pricing-note {
  margin-top: 18px;
  font-size: 14px;
}

.contact-panel {
  padding: 36px;
  border-radius: 36px;
  background: linear-gradient(135deg, #072117 0%, #0d311f 100%);
  box-shadow: var(--shadow);
}

.align-left {
  max-width: 700px;
  margin: 0 0 28px;
  text-align: left;
}

.align-left h2,
.align-left p {
  color: var(--text);
}

.align-left p {
  color: rgba(235, 255, 245, 0.72);
}

.contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 24px;
}

.contact-grid article {
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-grid h3,
.contact-grid p,
.site-footer p,
.footer-links a {
  color: var(--text);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 48px 0 36px;
}

@media (max-width: 1080px) {
  .hero,
  .pricing-layout,
  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .hero-visuals {
    min-height: 760px;
  }

  .card-login {
    top: 46px;
    left: 18px;
    width: 60%;
    height: 560px;
  }

  .card-dialogue {
    right: 10px;
    bottom: 54px;
    width: 42%;
    height: 300px;
  }

  .card-vip {
    top: 22px;
    right: 18px;
    width: 34%;
    height: 250px;
  }

  .signal-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .feature-grid,
  .workflow-grid,
  .scenario-grid,
  .contact-grid,
  .pricing-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .site-header {
    flex-wrap: wrap;
    gap: 14px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    overflow-x: auto;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy {
    padding-top: 8px;
  }

  .hero-actions,
  .contact-actions,
  .footer-links,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-metrics,
  .feature-grid,
  .workflow-grid,
  .showcase-grid,
  .scenario-grid,
  .contact-grid,
  .pricing-cards,
  .signal-strip {
    grid-template-columns: 1fr;
  }

  .hero-visuals {
    min-height: auto;
    display: grid;
    gap: 18px;
    padding-top: 0;
  }

  .floating-card,
  .card-login,
  .card-dialogue,
  .card-vip {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    transform: none;
  }

  .feature-card,
  .showcase-card,
  .pricing-cards article,
  .pricing-benefits,
  .contact-panel {
    padding: 22px;
  }

  .wide-card {
    grid-template-columns: 1fr;
  }
}