:root {
  --ink: #13201f;
  --muted: #5d6b68;
  --line: #dce5e1;
  --paper: #f8fbf9;
  --surface: #ffffff;
  --green: #087f68;
  --green-dark: #075545;
  --amber: #d9952f;
  --coral: #d85c48;
  --blue: #1f6f8b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 14px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(19, 32, 31, .08);
  background: rgba(248, 251, 249, .94);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  white-space: nowrap;
}

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

nav {
  display: flex;
  gap: clamp(12px, 2vw, 28px);
  color: var(--muted);
  font-weight: 650;
}

nav a {
  text-decoration: none;
}

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

.hero {
  min-height: 76vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  align-items: end;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(68px, 11vh, 118px) clamp(18px, 6vw, 84px) clamp(34px, 7vh, 72px);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 18, 24, .95) 0%, rgba(7, 18, 24, .74) 44%, rgba(7, 18, 24, .24) 100%),
    url("assets/hero-office-sign.jpg") center 46% / cover no-repeat;
}

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

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--green);
  font-weight: 800;
  letter-spacing: 0;
}

.hero .eyebrow {
  color: #94ead4;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(18px, 2.4vw, 24px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 800;
}

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

.button.secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .36);
  background: rgba(255, 255, 255, .12);
}

.hero-panel {
  display: grid;
  gap: 12px;
  margin-bottom: 4px;
}

.hero-panel div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  background: rgba(8, 127, 104, .78);
}

.hero-panel strong {
  display: block;
  font-size: 34px;
  line-height: 1;
}

.hero-panel span {
  color: rgba(255, 255, 255, .86);
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.summary-strip span {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  text-align: center;
  background: var(--surface);
  font-weight: 800;
}

.section {
  padding: clamp(52px, 8vw, 92px) clamp(18px, 6vw, 84px);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
}

.section p {
  color: var(--muted);
  font-size: 17px;
}

.fact-list {
  border-left: 4px solid var(--green);
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(19, 32, 31, .08);
}

.fact-list dl {
  margin: 0;
}

.fact-list div {
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.fact-list div:last-child {
  border-bottom: 0;
}

dt {
  color: var(--muted);
  font-size: 14px;
}

dd {
  margin: 3px 0 0;
  font-weight: 800;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 28px;
}

.service-grid,
.case-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-card,
.case-card,
.pricing-grid article {
  min-height: 240px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.service-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--coral);
  font-size: 14px;
  font-weight: 900;
}

.case-card {
  display: flex;
  flex-direction: column;
}

.case-card strong {
  margin-top: auto;
  color: var(--green-dark);
}

.cases-preview {
  background: #eef6f2;
}

.disclaimer {
  margin: 22px 0 0;
  padding: 14px 18px;
  border-left: 4px solid var(--amber);
  background: #fff8ec;
}

.visual-section {
  background: #fff;
}

.proof-gallery {
  background: #f3f7fb;
}

.account-showcase {
  background: #fff;
}

.account-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}

.account-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}

.account-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: center top;
  background: #eef3f5;
}

.account-card figcaption {
  min-height: 94px;
}

.account-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--green-dark);
  font-size: 16px;
}

.account-card span {
  display: block;
  color: var(--muted);
  line-height: 1.45;
}

.media-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr .85fr;
  gap: 16px;
}

.media-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}

.media-card:first-child {
  grid-row: span 2;
}

.media-card img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
}

.media-card:first-child img {
  aspect-ratio: 4 / 3;
}

.steps {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

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

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

.image-frame {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}

.image-frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 34%;
}

figcaption {
  padding: 14px 16px;
  color: var(--muted);
  font-size: 14px;
}

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

.pricing-grid article {
  min-height: 170px;
  border-top: 4px solid var(--blue);
}

.text-link {
  display: inline-flex;
  margin-top: 22px;
  color: var(--green-dark);
  font-weight: 900;
}

.faq-preview {
  background: #13201f;
  color: #fff;
}

.faq-preview .section-kicker,
.faq-preview h2 {
  color: #fff;
}

details {
  border-top: 1px solid rgba(255, 255, 255, .18);
  padding: 18px 0;
}

summary {
  cursor: pointer;
  font-weight: 900;
  font-size: 19px;
}

details p {
  max-width: 980px;
  margin: 12px 0 0;
  color: rgba(255, 255, 255, .72);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px clamp(18px, 6vw, 84px);
  color: #fff;
  background: #0b1514;
}

.site-footer p,
.site-footer span,
.site-footer a {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, .72);
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer div:last-child {
  display: grid;
  gap: 4px;
  text-align: right;
}

.page-hero {
  padding: clamp(56px, 8vw, 92px) clamp(18px, 6vw, 84px);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(7, 18, 24, .94), rgba(7, 18, 24, .66)),
    url("assets/hero-office-sign.jpg") center 46% / cover no-repeat;
}

.page-hero h1 {
  max-width: 900px;
  font-size: clamp(38px, 6vw, 72px);
}

.content-band {
  padding: clamp(44px, 6vw, 76px) clamp(18px, 6vw, 84px);
}

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

.info-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.info-card ul {
  padding-left: 20px;
}

.price-image {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.price-image img {
  width: 100%;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 24px;
}

.contact-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-panel dl {
  margin: 0;
}

.contact-panel div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.contact-panel div:last-child {
  border-bottom: 0;
}

@media (max-width: 960px) {
  .hero,
  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 86px;
  }

  .summary-strip,
  .service-grid,
  .case-grid,
  .pricing-grid,
  .two-col,
  .account-grid,
  .media-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-panel {
    grid-template-columns: repeat(3, 1fr);
  }

  .media-card:first-child {
    grid-row: auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }

  h1 {
    font-size: 40px;
  }

  .hero {
    padding-top: 56px;
    background:
      linear-gradient(180deg, rgba(7, 18, 24, .96) 0%, rgba(7, 18, 24, .84) 54%, rgba(7, 18, 24, .72) 100%),
      url("assets/hero-office-sign.jpg") center top / cover no-repeat;
  }

  .summary-strip,
  .service-grid,
  .case-grid,
  .pricing-grid,
  .two-col,
  .account-grid,
  .hero-panel,
  .media-grid {
    grid-template-columns: 1fr;
  }

  .steps li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

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

  .site-footer div:last-child {
    text-align: left;
  }
}