:root {
  --bg: #f3f5ef;
  --bg-strong: #ffffff;
  --text: #10231c;
  --muted: #5b6b64;
  --line: rgba(16, 35, 28, 0.1);
  --primary: #13c3b0;
  --primary-deep: #0c766b;
  --accent: #d8ff57;
  --shadow: 0 24px 60px rgba(24, 42, 35, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --header-height: 84px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(19, 195, 176, 0.16), transparent 30%),
    linear-gradient(180deg, #fcfdf9 0%, var(--bg) 55%, #eef4ed 100%);
}

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

button {
  font: inherit;
}

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-shell {
  position: relative;
  overflow: hidden;
}

.section-frame,
.header-inner,
.footer-inner {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  backdrop-filter: blur(10px);
  background: rgba(252, 253, 249, 0.92);
  border-bottom: 1px solid rgba(16, 35, 28, 0.08);
  box-shadow: 0 6px 20px rgba(16, 35, 28, 0.04);
}

main {
  padding-top: var(--header-height);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #a8ffef);
  color: #063831;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.82rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  position: relative;
  padding: 9px 13px;
  border-radius: 999px;
  color: var(--muted);
  transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
  background: rgba(19, 195, 176, 0.12);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 0;
  padding: 0;
  border-radius: 14px;
  background: rgba(19, 195, 176, 0.1);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero {
  position: relative;
  padding: 48px 0 40px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(12, 118, 107, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 118, 107, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 95%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 34px;
  align-items: center;
  min-height: calc(100vh - var(--header-height) - 88px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: 10ch;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.96;
}

.hero-text {
  max-width: 42ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

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

.button.primary {
  background: var(--text);
  color: #f9fff8;
  box-shadow: var(--shadow);
}

.button.secondary {
  border: 1px solid rgba(16, 35, 28, 0.14);
  background: rgba(255, 255, 255, 0.68);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-points li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(16, 35, 28, 0.08);
  color: var(--muted);
}

.hero-panel {
  position: relative;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 10% -4% -4% 20%;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(216, 255, 87, 0.5), rgba(19, 195, 176, 0.2));
  filter: blur(18px);
  z-index: 0;
}

.signal-card,
.hero-summary,
.summary-card,
.feature-card,
.solution-panel,
.solution-timeline,
.case-card,
.news-item,
.about-panel,
.site-nav,
.menu-toggle {
  position: relative;
  z-index: 1;
}

.signal-card {
  margin: 0 0 18px auto;
  width: min(100%, 320px);
  padding: 16px 18px;
  border: 1px solid rgba(16, 35, 28, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(8px);
}

.signal-card span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.signal-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.15rem;
  line-height: 1.5;
}

.hero-summary {
  display: grid;
  gap: 14px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.summary-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(16, 35, 28, 0.08);
  box-shadow: var(--shadow);
}

.summary-card small {
  display: block;
  color: var(--muted);
  margin-bottom: 10px;
}

.summary-card strong {
  display: block;
  font-size: 1.18rem;
  line-height: 1.5;
  letter-spacing: -0.03em;
}

.summary-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.summary-card-primary {
  background: linear-gradient(160deg, rgba(16, 35, 28, 0.96), rgba(12, 118, 107, 0.95));
  color: #effff8;
}

.summary-card-primary small,
.summary-card-primary p {
  color: rgba(239, 255, 248, 0.72);
}

.summary-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 4px 2px 0;
}

.summary-tags span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(16, 35, 28, 0.08);
  color: var(--primary-deep);
  font-size: 0.88rem;
  font-weight: 700;
}

.section {
  padding: 88px 0;
}

.section-head {
  max-width: 720px;
}

.section-anchor-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section-intro {
  margin: 0;
  color: var(--text);
  max-width: 38ch;
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  line-height: 1.7;
  letter-spacing: -0.02em;
}

.card-grid,
.cases-grid {
  display: grid;
  gap: 22px;
  margin-top: 34px;
}

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

.feature-card,
.solution-panel,
.solution-timeline,
.case-card,
.news-item,
.about-panel {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(16, 35, 28, 0.08);
  box-shadow: var(--shadow);
}

.feature-card,
.solution-panel,
.case-card {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.feature-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-index {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: rgba(19, 195, 176, 0.12);
  color: var(--primary-deep);
  font-weight: 800;
}

.feature-card h3,
.solution-panel h3,
.case-card h3,
.news-item h3 {
  margin: 18px 0 10px;
  font-size: 1.45rem;
}

.feature-card p,
.solution-panel p,
.case-card p,
.news-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.solutions-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 34px;
}

.solution-panel {
  min-height: 220px;
}

.solution-timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.solution-timeline div {
  padding: 22px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(19, 195, 176, 0.12), rgba(216, 255, 87, 0.25));
}

.solution-timeline span {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--primary-deep);
  font-weight: 800;
  font-size: 1.4rem;
}

.solution-timeline p {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
}

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

.case-card strong {
  display: block;
  margin-top: 22px;
  color: var(--primary-deep);
  font-size: 1.1rem;
}

.case-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(16, 35, 28, 0.06);
  color: var(--muted);
  font-size: 0.85rem;
}

.accent-card {
  background: linear-gradient(160deg, rgba(16, 35, 28, 0.96), rgba(12, 118, 107, 0.95));
  color: #effff8;
}

.accent-card p {
  color: rgba(239, 255, 248, 0.7);
}

.accent-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.accent-card li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.news-list {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.news-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 28px;
  border-radius: 24px;
  align-items: start;
}

.news-item time {
  display: inline-flex;
  padding-top: 8px;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: 0.06em;
}

.news-item h3 {
  margin-top: 0;
}

.news-label {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  margin-bottom: 10px;
  border-radius: 999px;
  background: rgba(19, 195, 176, 0.1);
  color: var(--primary-deep);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.86fr);
  gap: 24px;
  align-items: start;
}

.about-panel {
  display: grid;
  gap: 16px;
  padding: 24px;
  border-radius: var(--radius-lg);
}

.about-panel article {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(243, 245, 239, 0.9);
}

.about-panel small {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.site-footer {
  width: 100%;
  margin-top: 28px;
  padding: 28px 0;
  background: #10231c;
  color: #f2fbf8;
}

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

.footer-brand-block {
  display: grid;
  gap: 8px;
}

.footer-inner p {
  margin: 8px 0 0;
  color: rgba(242, 251, 248, 0.72);
}

.footer-copy {
  color: rgba(242, 251, 248, 0.56);
  font-size: 0.86rem;
}

.footer-meta {
  display: grid;
  justify-items: end;
  gap: 10px;
  color: rgba(242, 251, 248, 0.76);
  font-size: 0.94rem;
}

.footer-records {
  display: grid;
  gap: 6px;
  justify-items: end;
}

.footer-record-title {
  color: rgba(242, 251, 248, 0.92);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
}

.footer-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.footer-link:hover {
  color: #ffffff;
  opacity: 0.92;
}

.footer-record-note {
  color: rgba(242, 251, 248, 0.56);
  font-size: 0.86rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-inner,
  .about-layout,
  .solutions-layout,
  .products-grid,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 12ch;
  }

  .feature-card,
  .solution-panel {
    min-height: auto;
  }

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

@media (max-width: 820px) {
  :root {
    --header-height: 74px;
  }

  .section-frame,
  .header-inner,
  .footer-inner {
    width: min(100% - 32px, 1180px);
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: grid;
    gap: 6px;
    padding: 14px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.97);
    border: 1px solid rgba(16, 35, 28, 0.08);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 14px;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding-top: 28px;
  }

  .hero-inner {
    min-height: auto;
    gap: 24px;
  }

  .summary-card,
  .feature-card,
  .solution-panel,
  .solution-timeline,
  .case-card,
  .news-item,
  .about-panel {
    box-shadow: 0 18px 34px rgba(24, 42, 35, 0.06);
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  .footer-meta,
  .footer-records {
    justify-items: start;
  }
}

@media (max-width: 560px) {
  .hero h1 {
    font-size: clamp(2.3rem, 15vw, 3.8rem);
  }

  .hero-text,
  .section-intro,
  .summary-card p,
  .feature-card p,
  .solution-panel p,
  .case-card p,
  .news-item p {
    font-size: 0.98rem;
  }

  .solution-timeline {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .solution-timeline {
    grid-template-columns: 1fr;
  }

  .news-item {
    padding: 20px;
  }
}