:root {
  --bg: #f4fbf7;
  --bg-strong: #e8f7ef;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --text: #103123;
  --muted: #557064;
  --line: rgba(16, 49, 35, 0.12);
  --green: #10b35a;
  --green-deep: #0b8f47;
  --green-soft: rgba(16, 179, 90, 0.12);
  --shadow: 0 20px 50px rgba(14, 59, 37, 0.12);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Inter", "Noto Serif SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(16, 179, 90, 0.15), transparent 34%),
    radial-gradient(circle at top right, rgba(16, 179, 90, 0.08), transparent 28%),
    linear-gradient(180deg, #f8fdf9 0%, var(--bg) 48%, #eef8f2 100%);
}

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

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

.site-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 34px;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.78));
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 34px rgba(12, 48, 31, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.brand-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 20px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(16, 49, 35, 0.08);
}

.brand-text {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.brand-badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.brand-text strong {
  font-size: 1.32rem;
  line-height: 1.08;
  letter-spacing: 0.03em;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.92rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-weight: 600;
}

.nav a {
  position: relative;
  padding: 6px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green), var(--green-deep));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.menu-button {
  display: none;
  border: 1px solid var(--line);
  background: white;
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--text);
  font: inherit;
  font-weight: 700;
}

.section {
  margin-top: 26px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 28px;
  align-items: center;
  min-height: calc(100vh - 130px);
  padding: 30px 0 10px;
}

.hero-copy h1,
.section-heading h2,
.banner h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  letter-spacing: 0.02em;
}

.hero-copy h1 {
  font-size: clamp(2.6rem, 5vw, 4.9rem);
  line-height: 1.05;
  max-width: 11ch;
  margin-top: 10px;
}

.eyebrow {
  margin: 0;
  color: var(--green-deep);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lead {
  max-width: 62ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--green), var(--green-deep));
  box-shadow: 0 14px 26px rgba(16, 179, 90, 0.24);
}

.btn-secondary {
  color: var(--text);
  border-color: rgba(16, 49, 35, 0.14);
  background: rgba(255, 255, 255, 0.7);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.hero-metrics article,
.info-card,
.stat-card,
.content-card,
.contact-card,
.banner {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(16px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-metrics article {
  padding: 18px 18px 20px;
}

.hero-metrics strong {
  display: block;
  color: var(--green-deep);
  font-size: 1.6rem;
}

.hero-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.5;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 620px;
}

.logo-panel {
  width: min(100%, 520px);
  padding: 22px;
  border-radius: 36px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)),
    linear-gradient(180deg, rgba(16, 179, 90, 0.07), rgba(16, 179, 90, 0.02));
  border: 1px solid rgba(16, 49, 35, 0.08);
  box-shadow: 0 26px 60px rgba(10, 49, 30, 0.12);
  transform: rotate(-1.5deg);
}

.logo-panel img {
  width: 100%;
  height: auto;
  border-radius: 24px;
}

.floating-card {
  position: absolute;
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(16, 49, 35, 0.1);
  box-shadow: 0 18px 36px rgba(14, 59, 37, 0.12);
}

.floating-card span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.floating-card strong {
  font-size: 1rem;
}

.floating-card-a {
  left: 6px;
  top: 90px;
  animation: float 6s ease-in-out infinite;
}

.floating-card-b {
  right: 0;
  bottom: 96px;
  animation: float 7s ease-in-out infinite reverse;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 24px;
  align-items: start;
}

.section-heading {
  display: grid;
  gap: 10px;
}

.section-heading h2 {
  color: var(--green-deep);
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1.1;
  max-width: none;
  font-weight: 900;
}

.content-card {
  padding: 30px;
}

.content-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
  font-size: 1.02rem;
}

.content-card p + p {
  margin-top: 14px;
}

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

.info-card {
  padding: 22px;
  min-height: 240px;
}

.card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--green-soft);
  color: var(--green-deep);
  font-weight: 900;
}

.info-card h3 {
  margin: 18px 0 10px;
  font-size: 1.18rem;
}

.info-card p,
.stat-card span {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.stat-card {
  padding: 28px;
}

.stat-card strong {
  display: block;
  font-family: "Noto Serif SC", serif;
  font-size: 1.7rem;
  color: var(--green-deep);
  margin-bottom: 12px;
}

.banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px 30px;
  background:
    linear-gradient(135deg, rgba(16, 179, 90, 0.1), rgba(255, 255, 255, 0.72)),
    rgba(255, 255, 255, 0.82);
}

.banner h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
  line-height: 1.2;
  max-width: 16ch;
}

.contact-card {
  padding: 30px;
}

.contact-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.contact-list div {
  padding: 18px 18px 20px;
  border-radius: 22px;
  background: rgba(16, 179, 90, 0.05);
  border: 1px solid rgba(16, 179, 90, 0.09);
}

.contact-list span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.contact-list strong {
  font-size: 1.08rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 8px 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(85, 112, 100, 0.82);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.footer-meta span + span::before {
  content: "·";
  margin-right: 14px;
  color: rgba(85, 112, 100, 0.55);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (max-width: 1080px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 10px;
  }

  .hero-copy h1,
  .section-heading h2,
  .banner h2 {
    max-width: none;
  }

  .hero-visual {
    min-height: 540px;
    order: -1;
  }

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

  .stats-grid,
  .contact-list {
    grid-template-columns: 1fr;
  }

  .banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .topbar {
    border-radius: 24px;
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 16px 18px;
  }

  .menu-button {
    display: inline-flex;
    margin-left: auto;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-top: 10px;
  }

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

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 460px;
  }

  .floating-card-a {
    top: 10px;
    left: 0;
  }

  .floating-card-b {
    right: 0;
    bottom: 18px;
  }

  .content-card,
  .contact-card,
  .banner,
  .stat-card,
  .info-card {
    padding: 22px;
  }

  .site-shell {
    width: min(100% - 22px, 1180px);
  }
}

@media (max-width: 560px) {
  .topbar {
    padding: 12px 14px;
  }

  .brand-logo {
    width: 64px;
    height: 64px;
  }

  .brand-text strong {
    font-size: 1.15rem;
  }

  .hero-copy h1 {
    font-size: clamp(2.15rem, 12vw, 3.1rem);
  }

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

  .hero-visual {
    min-height: 380px;
  }

  .logo-panel {
    padding: 14px;
  }

  .floating-card {
    font-size: 0.92rem;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .footer-meta span + span::before {
    margin-right: 12px;
  }
}
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.82fr) minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  margin-top: 24px;
}

.contact-contact {
  display: flex;
  align-items: center;
  min-height: 100%;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--green-soft);
  color: var(--green-deep);
  flex: 0 0 auto;
}

.contact-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.contact-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.contact-item strong {
  font-size: 1.18rem;
  line-height: 1.35;
}

.contact-item strong a {
  color: var(--green-deep);
  font-weight: 700;
  word-break: break-all;
}

.wechat-card {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 20px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(16, 49, 35, 0.12);
  box-shadow: 0 20px 50px rgba(14, 59, 37, 0.1);
}

.wechat-qr {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1 / 1.2;
  object-fit: contain;
  border-radius: 24px;
  background: white;
}

.wechat-card p {
  margin: 0;
  color: var(--muted);
  text-align: center;
  line-height: 1.7;
}

@media (max-width: 1080px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .wechat-card {
    padding: 18px;
  }

  .contact-item strong {
    font-size: 1.02rem;
  }

  .contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }
}