:root {
  --ink: #16211f;
  --muted: #61706b;
  --paper: #fbfcf7;
  --mist: #eef5f1;
  --jade: #0d7c66;
  --leaf: #b6d661;
  --coral: #e86f51;
  --line: rgba(22, 33, 31, 0.13);
  --shadow: 0 24px 70px rgba(17, 42, 36, 0.16);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 0%, rgba(182, 214, 97, 0.22), transparent 30rem),
    linear-gradient(180deg, #fbfcf7 0%, #f4f8f1 100%);
  font-family: "Noto Serif SC", "Songti SC", "Microsoft YaHei", serif;
  line-height: 1.65;
}

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

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

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 18px;
  left: 50%;
  width: min(1160px, calc(100% - 28px));
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius);
  background: rgba(251, 252, 247, 0.86);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 42px rgba(23, 43, 37, 0.12);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--jade), #173d36);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 17px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #32433e;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--coral);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 150px 0 78px;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("https://images.unsplash.com/photo-1541888946425-d81bb19240f5?auto=format&fit=crop&w=2200&q=82");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(13, 39, 34, 0.84) 0%, rgba(13, 39, 34, 0.56) 44%, rgba(13, 39, 34, 0.14) 100%),
    linear-gradient(0deg, rgba(13, 39, 34, 0.62), transparent 42%);
}

.hero-content {
  position: relative;
  width: min(940px, calc(100% - 40px));
  margin: 0 auto;
  color: #fff;
  animation: riseIn 760ms ease both;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--coral);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #d7f37a;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 20px;
  font-size: clamp(44px, 6vw, 82px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-content p:not(.eyebrow) {
  max-width: 710px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: "Microsoft YaHei", sans-serif;
  font-weight: 700;
}

.button.primary {
  color: #16332d;
  background: var(--leaf);
}

.button.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.09);
}

section {
  scroll-margin-top: 112px;
}

.section-band {
  background:
    linear-gradient(135deg, rgba(13, 124, 102, 0.09), rgba(232, 111, 81, 0.07)),
    var(--mist);
}

.intro {
  padding: 58px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
  letter-spacing: 0;
}

.intro p:last-child,
.section-heading p,
.profile-copy p,
.contact-grid p {
  color: var(--muted);
  font-family: "Microsoft YaHei", sans-serif;
}

.services,
.profile {
  padding: 86px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

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

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.service-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 12px 42px rgba(26, 48, 42, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-card img {
  height: 230px;
  object-fit: cover;
}

.service-card div {
  padding: 24px;
}

.service-card span {
  color: var(--coral);
  font-family: Georgia, serif;
  font-size: 34px;
  font-weight: 800;
}

.service-card h3 {
  margin: 6px 0 10px;
  font-size: 24px;
}

.service-card p,
.advantage-grid p {
  color: var(--muted);
  font-family: "Microsoft YaHei", sans-serif;
}

.advantages {
  padding: 78px 0;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.advantage-grid article {
  min-height: 220px;
  padding: 24px;
  border-left: 4px solid var(--jade);
  background: rgba(255, 255, 255, 0.58);
}

.advantage-grid strong {
  display: block;
  margin-bottom: 12px;
  font-size: 20px;
}

.profile-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 52px;
  align-items: start;
}

.profile-copy {
  position: sticky;
  top: 122px;
}

.profile-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 18px 54px rgba(26, 48, 42, 0.1);
}

.profile-table div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 22px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

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

.profile-table span {
  color: var(--muted);
  font-family: "Microsoft YaHei", sans-serif;
}

.profile-table strong {
  font-weight: 700;
}

.contact {
  padding: 78px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: center;
}

.contact-panel {
  display: grid;
  gap: 12px;
}

.contact-panel a,
.contact-panel div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.contact-panel span {
  color: var(--coral);
  font-family: "Microsoft YaHei", sans-serif;
  font-weight: 700;
}

.site-footer {
  padding: 30px 0;
  color: rgba(255, 255, 255, 0.75);
  background: #14231f;
  font-family: "Microsoft YaHei", sans-serif;
}

.footer-grid {
  display: grid;
  grid-template-columns: auto auto;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.site-footer p {
  margin: 0;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(22px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 920px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(251, 252, 247, 0.96);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px;
  }

  .intro-grid,
  .profile-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .profile-copy {
    position: static;
  }

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

@media (max-width: 680px) {
  .container,
  .hero-content {
    width: min(100% - 28px, 1160px);
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 88vh;
    padding: 126px 0 56px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-content p:not(.eyebrow) {
    font-size: 16px;
  }

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

  .service-card img {
    height: 190px;
  }

  .profile-table div,
  .contact-panel a,
  .contact-panel div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}