:root {
  --ink: #10201b;
  --muted: #5d6b66;
  --line: #dfe6e0;
  --paper: #f6f4ed;
  --paper-strong: #fffdf7;
  --green: #1f6f55;
  --green-dark: #174b3d;
  --amber: #c98b24;
  --steel: #2f4d5a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  color: #fff;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 13px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  font-size: 14px;
}

nav a {
  color: rgba(255, 255, 255, 0.86);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 122px clamp(20px, 6vw, 84px) 72px;
  color: #fff;
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(11, 24, 20, 0.88) 0%, rgba(13, 32, 27, 0.72) 42%, rgba(16, 32, 27, 0.26) 100%),
    linear-gradient(0deg, rgba(16, 32, 27, 0.72) 0%, rgba(16, 32, 27, 0) 44%);
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
}

.hero .eyebrow {
  color: #f3b74d;
}

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

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

h1 {
  margin-bottom: 16px;
  font-size: 96px;
  line-height: 0.94;
  font-weight: 900;
}

h2 {
  margin-bottom: 0;
  font-size: 42px;
  line-height: 1.1;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.lead {
  width: min(650px, 100%);
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 21px;
  line-height: 1.7;
}

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

.primary-action,
.secondary-action,
.contact-panel a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  font-weight: 800;
}

.primary-action {
  padding: 12px 20px;
  background: #f3b74d;
  color: #18231f;
}

.secondary-action {
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
}

.section {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 6vw, 84px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.45fr) minmax(0, 1fr);
  gap: 32px;
  margin-bottom: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  min-height: 250px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-strong);
}

.service-index {
  display: block;
  margin-bottom: 52px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.service-card p,
.process-copy p,
.contact-panel p {
  color: var(--muted);
  line-height: 1.75;
}

.process-band {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 0.78fr);
  gap: clamp(28px, 6vw, 74px);
  background: #e9eee7;
}

.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  position: relative;
  padding: 22px 0 22px 52px;
  border-bottom: 1px solid #cbd7cf;
  color: var(--muted);
  line-height: 1.7;
}

.process-list li::before {
  counter-increment: process;
  content: counter(process, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 24px;
  color: var(--amber);
  font-weight: 900;
}

.process-list span {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 900;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 34px;
  align-items: center;
  background: var(--green-dark);
  color: #fff;
}

.contact-panel {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-panel a {
  width: 100%;
  margin-top: 12px;
  padding: 12px 16px;
  background: #fff;
  color: var(--green-dark);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px clamp(20px, 6vw, 84px);
  background: #10201b;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

@media (max-width: 820px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: 82vh;
    padding-top: 106px;
  }

  h1 {
    font-size: 68px;
  }

  h2 {
    font-size: 34px;
  }

  .lead {
    font-size: 18px;
  }

  .section-heading,
  .process-band,
  .contact-band,
  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 0;
  }

  .service-index {
    margin-bottom: 28px;
  }
}

@media (max-width: 520px) {
  .site-header {
    gap: 12px;
    padding: 14px 16px;
  }

  .brand small {
    display: none;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .section {
    padding-right: 28px;
    padding-left: 28px;
  }

  h1 {
    font-size: 52px;
  }

  h2 {
    font-size: 26px;
    line-height: 1.18;
  }

  .hero-actions a {
    width: 100%;
  }

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