:root {
  --green: #0e3b2e;
  --green-2: #1f6a4d;
  --green-3: #dbeade;
  --ink: #101613;
  --muted: #66746d;
  --line: #d6dfd8;
  --paper: #fbfcf8;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(14, 59, 46, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

body[data-lang="en"] {
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(14, 59, 46, 0.1);
  background: rgba(251, 252, 248, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 154px;
  height: 34px;
}

.brand img {
  display: block;
  width: auto;
  height: 34px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #29342f;
  font-size: 14px;
}

.nav a {
  position: relative;
  white-space: nowrap;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}

.lang-link {
  color: var(--green);
  font-weight: 700;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--green);
  padding: 8px 12px;
  border-radius: 6px;
}

.section {
  padding: clamp(72px, 10vw, 128px) clamp(20px, 6vw, 82px);
}

.section-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
  min-width: 0;
}

.hero {
  position: relative;
  min-height: calc(100vh - 78px);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
  padding-bottom: 72px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 76% 42%, rgba(31, 106, 77, 0.16), transparent 26%),
    radial-gradient(circle at 86% 70%, rgba(14, 59, 46, 0.11), transparent 28%);
  pointer-events: none;
}

.network {
  position: absolute;
  inset: auto -70px 20px auto;
  width: min(640px, 62vw);
  height: min(640px, 62vw);
  opacity: 0.55;
  pointer-events: none;
}

.network svg {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--green-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--green);
  font-size: clamp(44px, 7.2vw, 92px);
  line-height: 1.08;
  letter-spacing: 0;
  max-width: 980px;
  overflow-wrap: anywhere;
}

body[data-lang="en"] h1 {
  font-size: clamp(44px, 6.2vw, 88px);
}

.hero-lead {
  margin: 30px 0 0;
  max-width: 720px;
  color: #29342f;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.55;
  font-weight: 600;
}

.hero-note {
  max-width: 680px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--green);
  border-radius: 6px;
  font-weight: 700;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button.primary {
  background: var(--green);
  color: var(--white);
}

.button:hover {
  background: var(--green-2);
  border-color: var(--green-2);
  color: var(--white);
}

.section-title {
  max-width: 820px;
  margin-bottom: 42px;
}

.section-title h2 {
  margin: 0;
  color: var(--green);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.18;
}

.section-title p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

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

.grid > *,
.reports-grid > *,
.services-grid > *,
.detail-layout > *,
.contact-panel > * {
  min-width: 0;
}

.card,
.report-card,
.service-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(14, 59, 46, 0.13);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(14, 59, 46, 0.06);
}

.card {
  padding: 28px;
}

.card h3,
.service-card h3 {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 23px;
}

.card p,
.service-card p {
  margin: 0;
  color: #47544d;
  font-size: 16px;
  line-height: 1.8;
}

.reports-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.report-card {
  position: relative;
  display: flex;
  min-height: 330px;
  flex-direction: column;
  justify-content: space-between;
  padding: 26px;
  overflow: hidden;
}

.report-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(14, 59, 46, 0.08), transparent 46%);
  opacity: 0;
  transition: opacity 180ms ease;
}

.report-card:hover::before {
  opacity: 1;
}

.report-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: #edf4ef;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.report-card h3 {
  position: relative;
  margin: 0 0 16px;
  color: var(--green);
  font-size: 27px;
  line-height: 1.25;
  overflow-wrap: anywhere;
  word-break: normal;
}

.report-card dl {
  position: relative;
  display: grid;
  gap: 12px;
  margin: 0;
}

.report-card dt {
  color: var(--muted);
  font-size: 13px;
}

.report-card dd {
  margin: 4px 0 0;
  color: #26312c;
  font-size: 15px;
  line-height: 1.6;
}

.report-link {
  position: relative;
  margin-top: 24px;
  color: var(--green);
  font-weight: 800;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 38px;
  align-items: start;
}

.detail-main {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(26px, 5vw, 54px);
  box-shadow: var(--shadow);
}

.detail-main h1 {
  font-size: clamp(34px, 5vw, 62px);
}

.detail-summary {
  margin: 30px 0;
  color: #2c3832;
  font-size: 19px;
  line-height: 1.85;
}

.quote {
  border-left: 4px solid var(--green);
  background: #f1f7f2;
  padding: 22px 24px;
  color: var(--green);
  font-size: 19px;
  line-height: 1.75;
  font-weight: 700;
}

.detail-side {
  position: sticky;
  top: 104px;
  background: #eef5ef;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.detail-side dl {
  margin: 0;
}

.detail-side dt {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.detail-side dt:first-child {
  margin-top: 0;
}

.detail-side dd {
  margin: 6px 0 0;
  color: var(--green);
  font-weight: 800;
  line-height: 1.5;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  padding: 30px;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding: clamp(28px, 5vw, 54px);
  background: var(--green);
  color: var(--white);
  border-radius: 8px;
}

.contact-panel h2 {
  margin: 0 0 20px;
  font-size: clamp(30px, 4vw, 52px);
}

.contact-panel p,
.contact-panel li {
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
}

.contact-panel ul {
  margin: 0;
  padding-left: 20px;
}

.contact-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.contact-service-grid article {
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-service-grid h3 {
  margin: 0 0 12px;
  color: #ffffff;
  font-size: 18px;
}

.contact-service-grid ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.contact-service-grid li {
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

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

.contact-methods div {
  border-bottom: 1px solid rgba(255, 255, 255, 0.36);
  padding: 14px 0;
  color: rgba(255, 255, 255, 0.78);
}


.contact-methods span {
  display: block;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  margin-bottom: 6px;
}

.contact-methods strong {
  display: block;
  color: #ffffff;
  font-size: 18px;
  line-height: 1.45;
}
.site-footer {
  padding: 42px clamp(20px, 6vw, 82px);
  border-top: 1px solid var(--line);
}

.footer-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.footer-inner img {
  width: auto;
  height: 32px;
}

.footer-inner p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.not-found {
  min-height: 60vh;
}

@media (max-width: 900px) {
  .site-header {
    height: auto;
    min-height: 70px;
    flex-wrap: wrap;
    padding: 16px 20px;
  }

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

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 0 4px;
  }

  .nav.open {
    display: flex;
  }

  .brand {
    height: 30px;
  }

  .brand img {
    width: auto;
    height: 30px;
  }

  .hero {
    min-height: auto;
  }

  .network {
    width: 96vw;
    height: 96vw;
    opacity: 0.28;
    right: -34vw;
    bottom: 4vw;
  }

  .grid,
  .reports-grid,
  .services-grid,
  .detail-layout,
  .contact-panel {
    grid-template-columns: 1fr;
  }

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

  .detail-side {
    position: static;
  }

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

@media (max-width: 560px) {
  .section {
    padding: 62px 18px;
  }

  h1 {
    font-size: 29px;
    line-height: 1.14;
    max-width: min(100%, 11em);
    word-break: break-all;
    overflow-wrap: anywhere;
  }

  body[data-lang="zh"] h1,
  body[data-lang="zh"] .section-title h2 {
    word-break: break-all;
  }

  .section-title h2 {
    font-size: 25px;
    line-height: 1.22;
    max-width: min(100%, 12em);
    overflow-wrap: anywhere;
  }

  .hero-lead {
    font-size: 17px;
    max-width: min(100%, 18em);
    overflow-wrap: anywhere;
  }

  .hero-note {
    max-width: min(100%, 22em);
  }

  .hero-note,
  .section-title p,
  .card p,
  .service-card p,
  .report-card dd {
    overflow-wrap: anywhere;
  }

  .actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .report-card {
    min-height: auto;
    width: 100%;
    overflow: hidden;
    padding: 24px 26px;
  }

  .report-card h3 {
    font-size: 25px;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .report-card dd {
    font-size: 14px;
    word-break: break-all;
  }

  body[data-lang="en"] .report-card h3,
  body[data-lang="en"] .report-card dd,
  body[data-lang="en"] h1 {
    word-break: normal;
    overflow-wrap: anywhere;
  }
}