:root {
  --ink: #202f2c;
  --muted: #5d6d66;
  --paper: #f6f5f0;
  --green: #245c4b;
  --green-dark: #153b31;
  --accent: #cd6b4f;
  --line: #dde2dc;
  --white: #fff;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.container {
  width: min(1160px, 92%);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: #fff;
  background: rgba(21, 59, 49, 0.82);
  backdrop-filter: blur(12px);
}

.site-header.scrolled {
  color: var(--ink);
  background: rgba(246, 245, 240, 0.96);
  box-shadow: 0 1px 0 var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 15px;
}

.nav-links a:not(.nav-cta) {
  padding: 8px 2px;
}

.nav-cta,
.btn {
  border: 0;
  border-radius: 6px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
}

.nav-cta {
  padding: 10px 16px;
  color: #fff;
  background: var(--accent);
}

.hero {
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(21, 59, 49, 0.3), rgba(21, 59, 49, 0.72)),
    url("assets/hero.jpg") center / cover;
}

.hero-inner {
  padding: 40px 0 110px;
}

.hero-copy,
.hero {
  max-width: 100%;
}

.eyebrow,
.kicker {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero .eyebrow {
  display: inline-flex;
  padding: 7px 13px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  color: #fff;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: 52px;
  line-height: 1.16;
}

h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.25;
}

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

.hero p,
.section-head p {
  max-width: 620px;
  margin: 16px 0 0;
  color: currentColor;
  opacity: 0.86;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  padding: 13px 20px;
  border: 1px solid transparent;
}

.btn-primary {
  color: #fff;
  background: var(--accent);
}

.btn-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-outline {
  color: var(--green);
  border-color: var(--green);
  background: transparent;
}

.band-light {
  background: #fff;
}

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

.band-soft {
  background: #ece9e1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 34px 0;
}

.stats-grid div {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--line);
  padding-left: 16px;
}

.stats-grid strong {
  color: var(--green);
  font-size: 28px;
  line-height: 1.2;
}

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

.section {
  padding: 92px 0;
}

.section-head {
  max-width: 780px;
  margin-bottom: 42px;
}

.section-head.light h2 {
  color: #fff;
}

.section-head p:first-child {
  margin-top: 0;
}

.service-grid,
.case-grid,
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-grid {
  grid-template-columns: repeat(4, 1fr);
}

.service-card,
.case-card,
.package-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 16px 42px rgba(31, 51, 44, 0.09);
}

.service-card {
  padding: 26px;
}

.service-index {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 6px;
  color: #fff;
  background: var(--green);
  font-weight: 800;
}

.case-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius) var(--radius) 0 0;
}

.case-info {
  padding: 20px;
}

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

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-grid li {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.process-grid span {
  display: block;
  margin-bottom: 12px;
  color: #f2b79d;
  font-size: 26px;
  font-weight: 800;
}

.process-grid h3 {
  color: #fff;
}

.process-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
}

.package-grid {
  align-items: stretch;
}

.package-card {
  display: flex;
  flex-direction: column;
  padding: 30px;
}

.package-card.featured {
  border: 2px solid var(--accent);
  transform: translateY(-8px);
}

.price {
  color: var(--accent);
  font-size: 28px;
  font-weight: 800;
}

.package-card ul {
  margin: 20px 0 28px;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.package-card li {
  margin-bottom: 10px;
}

.package-card .btn {
  margin-top: auto;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.split-visual {
  min-height: 340px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(21, 59, 49, 0.1), rgba(21, 59, 49, 0.5)),
    url("assets/project-3-plain.jpg") center / cover;
}

.check-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  margin-bottom: 12px;
  color: var(--muted);
}

.faq-wrap {
  max-width: 900px;
}

.faq-list details {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  margin-bottom: 12px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 12px 0 0;
  color: var(--muted);
}

.booking {
  color: #fff;
  background:
    linear-gradient(180deg, rgba(21, 59, 49, 0.88), rgba(21, 59, 49, 0.92)),
    url("assets/project-3-plain.jpg") center / cover;
}

.booking-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-line {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.9);
}

.booking-form {
  display: grid;
  gap: 14px;
  padding: 28px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
}

.booking-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.booking-form input,
.booking-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}

.form-tip {
  min-height: 22px;
  margin: 0;
  color: var(--green);
  font-weight: 700;
}

.footer {
  color: #d6ddd9;
  background: #10231f;
  padding: 30px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer p {
  margin: 0;
  font-size: 14px;
}

@media (max-width: 900px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .case-grid,
  .package-grid,
  .split-grid,
  .booking-inner {
    grid-template-columns: 1fr;
  }

  .package-card.featured {
    transform: none;
  }
}

@media (max-width: 720px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 28px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
  }

  .service-grid,
  .case-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 70px 0;
  }

  .nav-links {
    position: fixed;
    inset: 68px 0 auto;
    height: 0;
    overflow: hidden;
    flex-direction: column;
    gap: 18px;
    padding: 0 24px;
    background: var(--paper);
    color: var(--ink);
    transition: height 0.25s ease, padding 0.25s ease;
  }

  .nav-links.open {
    height: auto;
    padding: 24px 24px 30px;
  }

  .menu-toggle {
    display: grid;
    grid-template-rows: repeat(3, 2px);
    gap: 5px;
    width: 42px;
    height: 42px;
    place-content: center;
    border: 0;
    background: transparent;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 22px;
    height: 2px;
    background: currentColor;
  }
}