:root {
  color-scheme: light;
  --ink: #14201d;
  --muted: #60716c;
  --line: #d8e2dd;
  --paper: #f6f8f5;
  --white: #ffffff;
  --green: #0f7d5a;
  --green-dark: #095f45;
  --coral: #d95d39;
  --amber: #efb84f;
  --blue: #2c6fbb;
  --shadow: 0 16px 48px rgba(20, 32, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 6vw;
  border-bottom: 1px solid rgba(216, 226, 221, 0.8);
  background: rgba(246, 248, 245, 0.92);
  backdrop-filter: blur(14px);
}

.brand,
.nav,
.proof-row,
.panel-header,
.metric-grid {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--green);
  color: var(--white);
}

.nav {
  gap: 24px;
  color: var(--muted);
  font-size: 15px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 48px;
  min-height: calc(100vh - 68px);
  padding: 72px 6vw 56px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(15, 125, 90, 0.10), transparent 42%),
    linear-gradient(315deg, rgba(217, 93, 57, 0.13), transparent 35%),
    var(--paper);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 840px;
  margin: 0;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin: 18px 0 8px;
  font-size: 20px;
}

.lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 20px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.primary {
  background: var(--green);
  color: var(--white);
}

.primary:hover {
  background: var(--green-dark);
}

.secondary {
  border-color: var(--line);
  background: var(--white);
}

.wide {
  width: 100%;
}

.proof-row {
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.proof-row span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-size: 14px;
}

.workbench,
.price-box,
.lead-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.workbench {
  padding: 22px;
}

.panel-header {
  justify-content: space-between;
  margin-bottom: 16px;
  font-weight: 800;
}

.status {
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(15, 125, 90, 0.12);
  color: var(--green-dark);
  font-size: 13px;
}

.sample-card {
  margin-top: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.sample-card p {
  margin: 8px 0 0;
}

.highlighted {
  border-color: rgba(15, 125, 90, 0.35);
  background: rgba(15, 125, 90, 0.06);
}

.label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.metric-grid div {
  min-height: 92px;
  padding: 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.metric-grid strong {
  display: block;
  font-size: 30px;
  line-height: 1;
}

.metric-grid span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.section {
  padding: 78px 6vw;
}

.section-heading {
  max-width: 820px;
}

.section-heading p,
.section-copy {
  color: var(--muted);
  font-size: 18px;
}

.deliverables {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.research {
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.insight-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.insight-grid article {
  min-height: 150px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.insight-grid strong,
.insight-grid span {
  display: block;
}

.insight-grid strong {
  font-size: 20px;
}

.insight-grid span {
  margin-top: 10px;
  color: var(--muted);
}

.sample-output {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.sample-table {
  display: grid;
  max-width: 980px;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fbfcfb;
}

.sample-table div {
  display: grid;
  grid-template-columns: 170px 1fr;
  min-height: 62px;
  border-bottom: 1px solid var(--line);
}

.sample-table div:last-child {
  border-bottom: 0;
}

.sample-table strong,
.sample-table span {
  display: flex;
  align-items: center;
  padding: 14px 16px;
}

.sample-table strong {
  background: rgba(15, 125, 90, 0.08);
}

.sample-table span {
  color: var(--muted);
}

.deliverables article {
  min-height: 250px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.deliverables p {
  margin: 0;
  color: var(--muted);
}

.icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(44, 111, 187, 0.12);
  color: var(--blue);
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 36px;
  align-items: center;
  background: var(--ink);
  color: var(--white);
}

.split .eyebrow,
.split .section-copy {
  color: rgba(255, 255, 255, 0.72);
}

.price-box {
  padding: 24px;
  color: var(--ink);
}

.pricing-section {
  background: var(--ink);
  color: var(--white);
}

.pricing-section .eyebrow,
.pricing-section .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.featured-price {
  border-color: rgba(239, 184, 79, 0.75);
  box-shadow: 0 20px 56px rgba(239, 184, 79, 0.18);
}

.price-line {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.price-line span {
  color: var(--muted);
  font-weight: 800;
}

.price-line strong {
  font-size: 52px;
  line-height: 1;
}

.price-box ul {
  display: grid;
  gap: 10px;
  margin: 20px 0;
  padding-left: 20px;
  color: var(--muted);
}

.calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.slider-wrap {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.slider-wrap span {
  font-size: 20px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--coral);
}

.calc-result {
  grid-column: 2;
  color: var(--muted);
}

.calc-result strong {
  display: block;
  color: var(--coral);
  font-size: 34px;
}

.order {
  background: var(--white);
}

.lead-form {
  display: grid;
  gap: 18px;
  max-width: 900px;
  margin-top: 30px;
  padding: 24px;
  box-shadow: none;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  color: var(--ink);
  font: inherit;
  font-weight: 500;
}

input,
select {
  height: 48px;
  padding: 0 13px;
}

textarea {
  resize: vertical;
  padding: 13px;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(15, 125, 90, 0.16);
  border-color: var(--green);
}

.submit {
  width: fit-content;
  min-width: 220px;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--green-dark);
  font-weight: 800;
}

.form-status.error {
  color: #b73524;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 6vw;
  color: var(--muted);
}

@media (max-width: 920px) {
  .hero,
  .split,
  .calculator {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
  }

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

  .insight-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .calc-result {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 14px 5vw;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
  }

  .hero,
  .section {
    padding-left: 5vw;
    padding-right: 5vw;
  }

  h1 {
    font-size: 42px;
  }

  .lead {
    font-size: 17px;
  }

  .deliverables,
  .field-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .sample-table div {
    grid-template-columns: 1fr;
  }

  .sample-table strong {
    padding-bottom: 6px;
  }

  .footer {
    flex-direction: column;
  }
}