:root {
  color-scheme: light;
  --ink: #15201b;
  --muted: #68746e;
  --line: #dce5df;
  --paper: #fbfcf8;
  --panel: #ffffff;
  --sage: #dfeee2;
  --green: #1f7a4c;
  --green-dark: #125633;
  --clay: #b97448;
  --blue: #315d86;
  --shadow: 0 24px 70px rgba(21, 32, 27, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, #eef4ef 0, #fbfcf8 420px),
    var(--paper);
  color: var(--ink);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 76px;
  padding: 0 clamp(20px, 5vw, 72px);
  display: flex;
  align-items: center;
  gap: 30px;
  background: rgba(251, 252, 248, 0.86);
  border-bottom: 1px solid rgba(220, 229, 223, 0.72);
  backdrop-filter: blur(18px);
}

.wordmark {
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 900;
  letter-spacing: 0;
}

.wordmark span {
  color: var(--green);
}

.site-header nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 26px;
  color: #47564f;
  font-size: 15px;
  font-weight: 800;
}

.site-header nav a {
  padding: 12px 0;
}

.site-header nav a:hover {
  color: var(--green-dark);
}

.header-action,
.button {
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  font-weight: 900;
  white-space: nowrap;
}

.header-action {
  background: #fff;
  color: var(--green-dark);
}

main {
  overflow: hidden;
}

.hero {
  min-height: calc(100vh - 116px);
  padding: clamp(34px, 5vw, 68px) clamp(20px, 5vw, 72px) 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.68fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.hero-copy {
  max-width: 820px;
}

.eyebrow,
.section-number {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.hero h1 {
  margin-top: 18px;
  font-size: clamp(42px, 5.8vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
  max-width: 900px;
}

.hero-copy p:not(.eyebrow) {
  margin-top: 24px;
  max-width: 680px;
  color: #53615a;
  font-size: 20px;
  line-height: 1.85;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button-primary {
  border-color: var(--green-dark);
  background: var(--green-dark);
  color: #fff;
}

.button-secondary {
  background: #fff;
  color: var(--green-dark);
}

.hero-panel {
  padding: 18px;
  border: 1px solid rgba(220, 229, 223, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.hero-panel img {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  border-radius: 6px;
}

.signal-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.signal-card {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: grid;
  align-content: center;
  gap: 12px;
  background: #fff;
}

.signal-card.active {
  background: var(--green-dark);
  color: #fff;
}

.signal-card span {
  color: inherit;
  opacity: 0.72;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.signal-card strong {
  font-size: 21px;
  line-height: 1.25;
}

.statement,
.compliance,
.company,
.contact,
.use-cases {
  padding: clamp(56px, 8vw, 108px) clamp(20px, 5vw, 72px);
}

.statement,
.compliance,
.company,
.contact {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 82px);
  align-items: start;
}

.statement h2,
.compliance h2,
.company h2,
.contact h2,
.use-cases h2 {
  margin-top: 14px;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.statement-copy {
  display: grid;
  gap: 22px;
  color: #4f5e56;
  font-size: 18px;
  line-height: 1.9;
}

.capabilities {
  padding: 0 clamp(20px, 5vw, 72px) clamp(56px, 8vw, 108px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.capabilities article,
.use-case-grid article {
  min-height: 230px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 16px 50px rgba(21, 32, 27, 0.05);
}

.capabilities span {
  color: var(--clay);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.capabilities h3 {
  margin-top: 36px;
  font-size: 25px;
}

.capabilities p,
.use-case-grid p,
.company-intro p,
.contact p,
.form-note {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.75;
}

.use-cases {
  background: #17261f;
  color: #fff;
}

.use-cases .section-number {
  color: #8ed3a8;
}

.use-case-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.use-case-grid article {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.13);
  box-shadow: none;
}

.use-case-grid b {
  font-size: 22px;
}

.use-case-grid p {
  color: #c9d7cf;
}

.compliance-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  list-style: none;
}

.compliance-list li {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 20px;
  background: #fff;
}

.compliance-list strong {
  color: var(--green-dark);
}

.compliance-list span {
  color: var(--muted);
  line-height: 1.75;
}

.company {
  background: var(--sage);
}

.entity-card {
  margin: 0;
  padding: 8px;
  border: 1px solid rgba(18, 86, 51, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
}

.entity-card div {
  padding: 22px;
  border-bottom: 1px solid rgba(18, 86, 51, 0.12);
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
}

.entity-card div:last-child {
  border-bottom: 0;
}

.entity-card dt {
  color: #5c6a62;
  font-size: 14px;
  font-weight: 900;
}

.entity-card dd {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
}

.contact {
  align-items: center;
}

.contact-form {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 16px;
  background: #fff;
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form span {
  color: #4e5c55;
  font-size: 14px;
  font-weight: 900;
}

input,
textarea {
  width: 100%;
  border: 1px solid #d8e3dc;
  border-radius: 6px;
  background: #fbfcf8;
  color: var(--ink);
  outline: 0;
}

input {
  height: 48px;
  padding: 0 14px;
}

textarea {
  padding: 14px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(31, 122, 76, 0.12);
}

.form-note {
  margin-top: 0;
  font-size: 13px;
}

.site-footer {
  padding: 38px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 24px;
  align-items: end;
  background: #fff;
}

.site-footer p {
  margin-top: 8px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: #44534b;
  font-weight: 800;
}

.copyright {
  grid-column: 1 / -1;
  font-size: 13px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(420px, calc(100vw - 48px));
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  padding: 14px 18px;
  border-radius: 8px;
  background: #15201b;
  color: #fff;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.2);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .hero,
  .statement,
  .compliance,
  .company,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .site-header {
    flex-wrap: wrap;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .site-header nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
  }
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 42px;
  }

  .hero-copy p:not(.eyebrow) {
    font-size: 17px;
  }

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

  .compliance-list li,
  .entity-card div {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .header-action {
    margin-left: auto;
  }
}