:root {
  --bg: #ffffff;
  --surface: #f7faf9;
  --surface-strong: #eef6f4;
  --text: #111820;
  --muted: #5a6872;
  --line: #d7e3e0;
  --teal: #087d7f;
  --teal-dark: #066466;
  --amber: #f1b44c;
  --shadow: 0 18px 45px rgba(18, 32, 38, 0.09);
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 0 36px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

.brand {
  flex: 1;
  text-decoration: none;
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.nav a,
.footer a,
.text-link {
  text-decoration: none;
}

.nav a:hover,
.footer a:hover,
.text-link:hover {
  color: var(--teal);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  border: 1px solid var(--teal);
  text-decoration: none;
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 10px 22px rgba(8, 125, 127, 0.18);
}

.header-cta:hover,
.button.primary:hover {
  background: var(--teal-dark);
}

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

.section {
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
  padding: 70px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(440px, 1.08fr);
  gap: 54px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding-top: 48px;
}

.hero-copy h1 {
  margin: 0 0 26px;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.14;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 600px;
  margin: 0 0 34px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: var(--surface);
}

.hero-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}

.section-heading h2,
.pack-copy h2,
.final-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
}

.section-heading p,
.pack-copy p,
.final-cta p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.text-link {
  color: var(--teal);
  font-weight: 800;
  white-space: nowrap;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.article-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.article-card h3 {
  min-height: 90px;
  margin: 22px 0 12px;
  font-size: 19px;
  line-height: 1.45;
}

.article-card p {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.75;
}

.article-card a {
  color: var(--teal);
  font-weight: 800;
  text-decoration: none;
}

.icon-box {
  width: 42px;
  height: 42px;
  color: var(--teal);
}

.document-icon {
  border: 2px solid currentColor;
  border-radius: 4px;
  position: relative;
}

.document-icon::before,
.document-icon::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: currentColor;
}

.document-icon::before {
  top: 14px;
}

.document-icon::after {
  top: 24px;
}

.chat-icon {
  border: 2px solid currentColor;
  border-radius: 50%;
  position: relative;
}

.chat-icon::after {
  content: "";
  position: absolute;
  left: 8px;
  bottom: -5px;
  width: 10px;
  height: 10px;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  background: #fff;
  transform: rotate(-20deg);
}

.chart-icon {
  display: grid;
  grid-template-columns: repeat(3, 8px);
  align-items: end;
  gap: 5px;
}

.chart-icon::before,
.chart-icon::after,
.chart-icon {
  content: "";
}

.chart-icon::before,
.chart-icon::after {
  display: block;
  width: 8px;
  border: 2px solid currentColor;
  border-top: none;
}

.chart-icon::before {
  height: 26px;
}

.chart-icon::after {
  height: 34px;
}

.pack-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.75fr);
  gap: 54px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.sample-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 0.72fr);
  gap: 46px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.sample-copy h2 {
  margin: 0 0 16px;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.24;
}

.sample-copy p {
  margin: 0 0 26px;
  color: var(--muted);
  line-height: 1.85;
}

.eyebrow {
  margin-bottom: 12px !important;
  color: var(--teal) !important;
  font-size: 14px;
  font-weight: 850;
}

.sample-panel {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.sample-panel h3 {
  margin: 0 0 18px;
  font-size: 22px;
}

.sample-panel ul {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sample-panel li {
  position: relative;
  padding-left: 28px;
  line-height: 1.7;
}

.sample-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}

.price {
  margin: 30px 0 22px;
  font-size: 60px;
  font-weight: 850;
  line-height: 1;
}

.price span {
  margin-left: 8px;
  font-size: 22px;
}

.small-note {
  margin-top: 16px !important;
  font-size: 13px !important;
}

.included {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.included h3,
.table-panel h3,
.pdca-panel h3 {
  margin: 0 0 18px;
  font-size: 22px;
}

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

.included li {
  position: relative;
  padding-left: 28px;
  line-height: 1.7;
}

.included li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--teal);
  border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-list li {
  padding-top: 4px;
}

.flow-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 26px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}

.flow-list h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.flow-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.metrics-section {
  border-top: 1px solid var(--line);
}

.metrics-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.85fr);
  gap: 28px;
}

.table-panel,
.pdca-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.table-panel {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.metrics-table {
  min-width: 520px;
}

th,
td {
  padding: 13px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-strong);
  font-weight: 800;
}

.pdca-panel dl {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.pdca-panel dl div {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.pdca-panel dt {
  color: var(--teal);
  font-weight: 850;
}

.pdca-panel dd {
  margin: 0;
  color: var(--muted);
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 32px;
  padding: 42px;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--surface-strong), #fff);
}

.footer {
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer span {
  flex: 1;
  color: var(--text);
  font-weight: 800;
}

.article-shell {
  width: min(100% - 40px, 860px);
  margin: 0 auto;
  padding: 68px 0 90px;
}

.article-page {
  color: var(--text);
}

.back-link,
.article-kind {
  color: var(--teal);
  font-size: 14px;
  font-weight: 850;
  text-decoration: none;
}

.article-kind {
  margin: 24px 0 18px;
}

.article-page h1 {
  margin: 0 0 28px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.2;
}

.article-page h2 {
  margin: 54px 0 18px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-size: 28px;
  line-height: 1.35;
}

.article-page h3 {
  margin: 36px 0 14px;
  font-size: 22px;
  line-height: 1.4;
}

.article-page h4 {
  margin: 28px 0 12px;
  font-size: 18px;
}

.article-page p,
.article-page li {
  color: #283640;
  font-size: 17px;
  line-height: 2;
}

.article-page ul,
.article-page ol {
  padding-left: 1.4em;
}

.article-page pre {
  overflow-x: auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f4f8f7;
  color: #142129;
  line-height: 1.7;
}

.article-page code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.article-cta {
  margin-top: 64px;
  padding: 34px;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--surface-strong), #fff);
}

.article-cta h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.launch-form {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 34px;
  align-items: start;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.launch-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
}

.launch-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.notify-form {
  display: grid;
  gap: 14px;
}

.notify-form label {
  display: grid;
  gap: 7px;
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
}

.notify-form input,
.notify-form select {
  min-height: 46px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  padding: 0 12px;
}

.notify-form button {
  min-height: 48px;
  border: 1px solid var(--teal);
  border-radius: 6px;
  background: var(--teal);
  color: #fff;
  font: inherit;
  font-size: 15px;
  font-weight: 850;
  cursor: pointer;
}

.notify-form button:hover {
  background: var(--teal-dark);
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.form-fallback {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.form-fallback a {
  color: var(--teal);
  font-weight: 850;
}

.hidden-field {
  display: none;
}

@media (max-width: 960px) {
  .site-header {
    flex-wrap: wrap;
    gap: 14px 20px;
    padding: 16px 24px;
  }

  .brand {
    flex-basis: 100%;
  }

  .nav {
    overflow-x: auto;
    gap: 18px;
    padding-bottom: 2px;
  }

  .header-cta {
    min-height: 42px;
    padding-inline: 16px;
    font-size: 13px;
  }

  .section {
    width: min(100% - 32px, 720px);
    padding: 52px 0;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 44px;
  }

  .hero-copy h1 {
    font-size: 42px;
  }

  .article-grid,
  .sample-section,
  .pack-section,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

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

  .final-cta {
    display: grid;
    padding: 30px;
  }

  .launch-form {
    grid-template-columns: 1fr;
    padding: 30px;
  }
}

@media (max-width: 620px) {
  .site-header {
    position: static;
  }

  .nav {
    width: 100%;
  }

  .header-cta {
    width: 100%;
  }

  .hero-copy h1 {
    font-size: 34px;
  }

  .hero-copy p {
    font-size: 16px;
  }

  .section-heading.split {
    display: grid;
  }

  .article-card {
    min-height: auto;
  }

  .article-card h3 {
    min-height: auto;
  }

  .price {
    font-size: 48px;
  }

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

  .footer {
    display: grid;
    padding: 22px 24px;
  }

  .article-shell {
    width: min(100% - 32px, 720px);
    padding-top: 42px;
  }

  .article-page p,
  .article-page li {
    font-size: 16px;
  }
}