:root {
  color-scheme: light;
  --ink: #132026;
  --muted: #5f6f76;
  --paper: #f8faf8;
  --line: #dbe5dc;
  --panel: #ffffff;
  --deep: #0f1f24;
  --green: #bedb11;
  --green-dark: #728708;
  --cyan: #5fb8c9;
  --shadow: 0 18px 50px rgba(15, 31, 36, .12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.analytics-consent {
  position: fixed;
  z-index: 100;
  right: 18px;
  bottom: 18px;
  left: 18px;
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 20px;
  border: 1px solid rgba(219, 229, 220, .9);
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow);
}

.analytics-consent[hidden] {
  display: none;
}

.analytics-consent p {
  margin: 0 0 12px;
}

.analytics-consent__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.analytics-consent button {
  min-height: 42px;
  padding: 9px 16px;
  border: 1px solid var(--deep);
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.analytics-consent__accept {
  background: var(--deep);
  color: #fff;
}

.analytics-consent__reject {
  background: #fff;
  color: var(--deep);
}

.analytics-consent a {
  margin-left: auto;
  font-weight: 700;
}

.privacy-page {
  background: #eef4ef;
}

.privacy-document {
  width: min(920px, calc(100% - 36px));
  margin: 36px auto;
  padding: clamp(24px, 5vw, 58px);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.privacy-document h1 {
  max-width: none;
  margin: 20px 0 8px;
  font-size: clamp(34px, 6vw, 58px);
}

.privacy-document h2 {
  margin-top: 30px;
}

.privacy-document a {
  color: #365f69;
}

.privacy-back {
  font-weight: 800;
}

.site-header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: #fff;
  border-bottom: 1px solid rgba(219, 229, 220, .78);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 24px;
  min-width: 300px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 132px;
  min-width: 132px;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid rgba(95, 111, 118, .18);
  border-radius: 999px;
  background: #f3f7f4;
}

.language-switch button {
  min-width: 44px;
  min-height: 34px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #385058;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.language-switch button:hover,
.language-switch button:focus-visible,
.language-switch button.is-active {
  background: var(--deep);
  color: #fff;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(14px, 2.2vw, 34px);
  font-size: clamp(20px, 1.65vw, 26px);
  font-weight: 800;
  letter-spacing: 0;
}

.site-nav a {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  padding: 0 4px;
  border-bottom: 4px solid transparent;
  color: #26383d;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-bottom-color: var(--green);
  color: #000;
}

.nav-icon {
  justify-content: center;
  width: 58px;
  min-width: 58px;
  padding: 0;
  border: 1px solid rgba(19, 32, 38, .12);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 12px 26px rgba(15, 31, 36, .16);
  color: #0f1f24;
  font-size: 31px;
  line-height: 1;
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease;
}

.nav-icon img {
  display: block;
  width: 72%;
  height: 72%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.nav-contact img {
  width: 76%;
  height: 76%;
}

.nav-icon:hover,
.nav-icon:focus-visible {
  border-bottom-color: transparent;
  box-shadow: 0 16px 30px rgba(15, 31, 36, .22);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 130px clamp(22px, 6vw, 84px) 76px;
  background: var(--deep);
}

.hero-media,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
  object-position: center 36%;
  transform: scale(1.18);
  opacity: .90;
}

.hero-scrim {
  background:
    linear-gradient(90deg, rgba(8, 21, 25, .92) 0%, rgba(8, 21, 25, .70) 48%, rgba(8, 21, 25, .30) 100%),
    radial-gradient(circle at 74% 32%, rgba(190, 219, 17, .16), transparent 34%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(790px, 100%);
  color: #fff;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.section-dark .eyebrow {
  color: var(--green);
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 86px);
  line-height: .98;
  font-weight: 800;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: 0;
}

h3 {
  margin: 34px 0 14px;
  font-size: 22px;
  line-height: 1.25;
}

.hero-text {
  width: min(640px, 100%);
  color: rgba(255, 255, 255, .88);
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.42;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  margin-top: 16px;
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, .25);
  background: var(--green);
  color: #111a1c;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.section {
  padding: clamp(72px, 9vw, 132px) clamp(22px, 6vw, 84px);
  background: var(--paper);
}

.section-light {
  background: #fff;
}

.section-dark {
  background: var(--deep);
  color: #edf5f2;
}

.section-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 92px);
  align-items: start;
}

.section-heading {
  position: sticky;
  top: 112px;
}

.section-heading p {
  color: var(--muted);
}

.researchgate-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding: 12px 16px 12px 12px;
  border: 1px solid rgba(0, 204, 187, .34);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff, #eefaf8);
  box-shadow: 0 14px 34px rgba(15, 31, 36, .10);
  color: #123238;
  text-decoration: none;
}

.researchgate-link:hover,
.researchgate-link:focus-visible {
  border-color: #00ccbb;
  box-shadow: 0 18px 38px rgba(15, 31, 36, .16);
}

.researchgate-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  min-width: 46px;
  height: 46px;
  border-radius: 6px;
  background: #00ccbb;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}

.researchgate-link strong,
.researchgate-link small {
  display: block;
}

.researchgate-link strong {
  font-size: 17px;
  line-height: 1.15;
}

.researchgate-link small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
}

.section-dark .section-heading p {
  color: rgba(237, 245, 242, .72);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.feature-list p,
.text-flow,
.publications-flow,
.contact-block,
.map-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.feature-list p {
  min-height: 142px;
  margin: 0;
  padding: 24px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.text-flow,
.publications-flow {
  padding: clamp(28px, 4vw, 52px);
}

.section-dark .text-flow {
  border-color: rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .06);
  box-shadow: none;
}

.text-flow p,
.text-flow li,
.publications-flow li,
.contact-block p {
  color: #26383d;
  font-size: 17px;
}

.section-dark .text-flow p,
.section-dark .text-flow li {
  color: rgba(237, 245, 242, .84);
}

.text-flow ul {
  margin: 18px 0 28px;
  padding-left: 22px;
}

.text-flow li + li,
.publications-flow li + li {
  margin-top: 13px;
}

.note {
  margin-top: 34px;
  font-weight: 700;
}

.file-label {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-left: 4px solid var(--green);
  background: #eef4ee;
  font-weight: 700;
  text-decoration: none;
}

.publications-flow {
  max-height: 980px;
  overflow: auto;
  scrollbar-color: var(--green-dark) #edf2ee;
}

.publications-flow ol {
  margin: 0 0 42px;
  padding-left: 22px;
}

.publications-flow h3:first-child {
  margin-top: 0;
}

.section-contact {
  background: #eef3ef;
}

.contact-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(340px, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.contact-block {
  margin-top: 16px;
  padding: 24px;
}

.contact-block h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 18px;
}

.contact-block p:last-child {
  margin-bottom: 0;
}

.contact-block a {
  color: var(--green-dark);
  font-weight: 800;
}

.map-panel {
  overflow: hidden;
}

.map-panel iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
}

.map-panel p {
  margin: 0;
  padding: 18px 22px;
  color: #26383d;
  font-weight: 700;
}

.site-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px clamp(22px, 6vw, 84px);
  background: #121d20;
  color: rgba(255, 255, 255, .78);
}

.site-footer img {
  display: block;
  width: 58px;
  height: auto;
}

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

@media (max-width: 920px) {
  .site-header {
    position: sticky;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-block: 12px;
  }

  .brand {
    width: 112px;
    min-width: 112px;
  }

  .header-left {
    min-width: 0;
  }

  .site-nav {
    width: 100%;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 8px 18px;
    overflow: visible;
    padding-bottom: 4px;
    font-size: 18px;
  }

  .site-nav a {
    min-height: 46px;
  }

  .hero {
    min-height: 650px;
    padding-top: 86px;
  }

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

  .section-heading {
    position: static;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .publications-flow {
    max-height: none;
  }
}

@media (max-width: 560px) {
  .analytics-consent {
    right: 10px;
    bottom: 10px;
    left: 10px;
    padding: 16px;
  }

  .analytics-consent__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .analytics-consent button,
  .analytics-consent a {
    width: 100%;
    margin-left: 0;
    text-align: center;
  }

  .header-left {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .brand {
    width: 92px;
    min-width: 92px;
  }

  .site-nav {
    justify-content: space-between;
    font-size: 12px;
    gap: 4px;
  }

  .site-nav a {
    min-height: 40px;
    padding: 0 1px;
    border-bottom-width: 3px;
  }

  .nav-icon {
    width: 36px;
    min-width: 36px;
    min-height: 36px;
    font-size: 25px;
  }

  .language-switch button {
    min-width: 38px;
    min-height: 32px;
    font-size: 13px;
  }

  h1 {
    max-width: 10.5em;
    font-size: 36px;
    line-height: 1.04;
  }

  html[lang="zh-CN"] h1 {
    max-width: 8.2em;
    font-size: 44px;
    line-height: 1.05;
  }

  .hero {
    min-height: 610px;
    padding-top: 54px;
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-text {
    font-size: 18px;
  }

  .section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .text-flow,
  .publications-flow,
  .contact-block {
    padding: 22px;
  }

  .map-panel iframe {
    height: 340px;
  }

  .site-footer {
    align-items: flex-start;
  }
}

@media (max-width: 380px) {
  .language-switch {
    gap: 3px;
    padding: 4px;
  }

  .language-switch button {
    min-width: 34px;
    min-height: 30px;
    font-size: 12px;
  }

  .site-nav {
    font-size: 10px;
    gap: 3px;
  }

  .site-nav a {
    min-height: 36px;
  }

  .nav-icon {
    width: 32px;
    min-width: 32px;
    min-height: 32px;
  }

  h1 {
    font-size: 32px;
  }

  html[lang="zh-CN"] h1 {
    font-size: 40px;
  }
}