:root {
  --navy: #092b4c;
  --navy-2: #0e3d68;
  --blue: #13669d;
  --cyan: #2ea6c9;
  --gold: #c9a24c;
  --gold-2: #f1d891;
  --ink: #14202c;
  --muted: #647487;
  --paper: #f5f8fb;
  --white: #ffffff;
  --line: rgba(9, 43, 76, 0.12);
  --line-light: rgba(255, 255, 255, 0.18);
  --shadow: 0 24px 70px rgba(9, 43, 76, 0.18);
  --radius: 8px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height, 78px);
  overflow-x: hidden;
}

body {
  margin: 0;
  max-width: 100vw;
  color: var(--ink);
  background: var(--paper);
  font-family: "Inter", "Noto Sans SC", "Microsoft YaHei UI", "PingFang SC", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

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

.container {
  width: min(calc(100% - 44px), var(--container));
  margin-inline: auto;
}

[data-lang] {
  display: none !important;
}

.lang-zh [data-lang="zh"],
.lang-en [data-lang="en"] {
  display: inline !important;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  background: rgba(9, 43, 76, 0.82);
  border-bottom: 1px solid var(--line-light);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  background: rgba(9, 43, 76, 0.96);
  box-shadow: 0 16px 38px rgba(3, 17, 31, 0.22);
}

.nav {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-mark {
  display: grid;
  gap: 2px;
  color: var(--white);
  line-height: 1;
}

.brand-mark strong {
  color: var(--gold-2);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark small {
  max-width: 190px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.9rem;
  font-weight: 800;
}

.nav-menu a {
  transition: color 180ms ease;
}

.nav-menu a:hover {
  color: var(--white);
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.lang-switch,
.nav-lang-mobile {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.nav-lang-mobile {
  display: none;
}

.lang-btn {
  min-width: 46px;
  border: 0;
  border-radius: 999px;
  padding: 8px 11px;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 900;
}

.lang-btn.active {
  color: var(--navy);
  background: var(--gold-2);
}

.nav-toggle {
  display: none !important;
}

.mobile-header-lang {
  display: none;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 20px;
  font-size: 0.94rem;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

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

.btn-primary {
  color: #08233d;
  background: linear-gradient(135deg, var(--gold-2), var(--gold));
  box-shadow: 0 18px 34px rgba(201, 162, 76, 0.24);
}

.btn-ghost,
.btn-outline {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.24);
}

.btn-light {
  color: var(--navy);
  background: var(--white);
}

.hero {
  position: relative;
  min-height: 820px;
  padding-top: var(--header-height, 78px);
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(115deg, rgba(6, 30, 54, 0.98) 0%, rgba(9, 43, 76, 0.92) 46%, rgba(19, 102, 157, 0.76) 100%),
    var(--navy);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: linear-gradient(90deg, #000, transparent 74%);
  pointer-events: none;
}

.hero::after {
  position: absolute;
  right: -160px;
  bottom: -260px;
  width: 680px;
  height: 680px;
  border: 1px solid rgba(241, 216, 145, 0.24);
  border-radius: 50%;
  content: "";
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  min-width: 0;
  min-height: calc(820px - var(--header-height, 78px));
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.66fr);
  align-items: center;
  gap: 54px;
  padding: 86px 0 98px;
}

.hero-copy {
  min-width: 0;
}

.hero-panel,
.section-copy,
.fields-intro,
.field-cloud,
.fields-content,
.audience-list,
.apply-copy {
  min-width: 0;
}

.programme-label,
.section-label {
  margin: 0 0 18px;
  color: var(--gold-2);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(3rem, 5.4vw, 5.55rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero-subtitle {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--gold-2);
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.hero-lead {
  max-width: 650px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-panel {
  width: 100%;
  max-width: 520px;
  min-width: 0;
  justify-self: end;
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel-logo {
  display: grid;
  min-height: 128px;
  grid-template-columns: 86px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 22px;
  background: var(--white);
  border-radius: var(--radius);
}

.panel-logo img {
  width: 86px;
  height: 86px;
  object-fit: contain;
}

.panel-logo span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.panel-logo div {
  min-width: 0;
}

.panel-logo strong {
  display: block;
  margin-top: 6px;
  color: var(--navy);
  font-size: 1.05rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
  word-break: normal;
  white-space: normal;
}

.stats-grid {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
}

.stats-grid div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
}

.stats-grid dt {
  color: var(--gold-2);
  font-size: 1.15rem;
  font-weight: 900;
}

.stats-grid dd {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-weight: 700;
}

.hero-visual {
  display: none;
}

.orbital-card,
.research-board {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(7, 32, 57, 0.72);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
}

.orbital-card {
  display: grid;
  gap: 8px;
  min-width: 220px;
  padding: 18px;
}

.orbital-card span,
.research-board span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.orbital-card strong,
.research-board strong {
  color: var(--white);
  font-size: 1rem;
}

.card-a {
  top: 18%;
  right: 13%;
}

.card-b {
  right: 27%;
  bottom: 18%;
}

.research-board {
  right: 6%;
  top: 43%;
  display: grid;
  width: 320px;
  grid-template-columns: 64px 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px;
}

.research-board img {
  padding: 8px;
  background: var(--white);
  border-radius: 50%;
}

.proof-strip {
  color: var(--white);
  background: var(--navy);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.proof-grid div {
  min-width: 0;
  padding: 28px 22px;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.proof-grid div:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.proof-grid span {
  display: block;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.78rem;
  font-weight: 800;
}

.proof-grid strong {
  display: block;
  margin-top: 5px;
  color: var(--gold-2);
  font-size: 1rem;
  line-height: 1.25;
}

.section {
  padding: 112px 0;
}

.split-layout,
.fields-layout,
.audience-grid,
.apply-layout {
  display: grid;
  grid-template-columns: 0.44fr 1fr;
  gap: 70px;
}

.overview {
  background: var(--white);
}

.overview-aside {
  display: grid;
  align-content: start;
  gap: 30px;
}

.overview-illustration {
  width: min(100%, 320px);
  padding: 18px;
  background: linear-gradient(145deg, #f8fbfd, #edf4f8);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(9, 43, 76, 0.08);
}

.overview-illustration svg {
  width: 100%;
  height: auto;
}

.section-copy h2,
.section-heading h2,
.fields-intro h2,
.audience-card h2,
.apply-copy h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0;
}

.section-copy p,
.fields-intro p,
.apply-copy p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin-top: 30px;
}

.feature-list p,
.audience-list p {
  position: relative;
  margin: 0;
  padding: 18px 18px 18px 48px;
  background: #f4f8fb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-weight: 700;
}

.feature-list p::before,
.audience-list p::before {
  position: absolute;
  left: 18px;
  top: 22px;
  width: 12px;
  height: 12px;
  background: var(--gold);
  content: "";
}

.outcomes {
  background: #eef4f8;
}

.section-heading {
  display: grid;
  gap: 18px;
  max-width: 820px;
}

.outcome-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 44px;
}

.outcome-grid article,
.process-steps article {
  min-width: 0;
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(9, 43, 76, 0.08);
}

.outcome-grid article span {
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 900;
}

.outcome-grid h3,
.process-steps h3 {
  margin: 18px 0 0;
  color: var(--navy);
  font-size: 1.2rem;
  line-height: 1.25;
}

.outcome-grid p,
.process-steps p {
  margin: 12px 0 0;
  color: var(--muted);
}

.fields {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(9, 43, 76, 0.98), rgba(14, 61, 104, 0.94)),
    var(--navy);
}

.fields .section-label,
.fields-intro h2 {
  color: var(--gold-2);
}

.fields-intro p {
  color: rgba(255, 255, 255, 0.72);
}

.field-cloud {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  gap: 10px;
}

.fields-content h3 {
  margin: 0 0 22px;
  color: var(--gold-2);
  font-size: clamp(1.6rem, 3vw, 3rem);
  font-weight: 900;
  line-height: 1;
}

.field-cloud span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0 16px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  font-weight: 800;
}

.audience {
  background: var(--white);
}

.audience-list {
  display: grid;
  gap: 12px;
}

.process {
  background: #eef4f8;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 44px;
}

.process-steps b {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--navy);
  background: var(--gold-2);
  border-radius: 50%;
  font-size: 1.1rem;
}

.apply {
  padding: 78px 0;
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(9, 43, 76, 0.96), rgba(19, 102, 157, 0.9)),
    var(--navy);
}

.apply-layout {
  grid-template-columns: minmax(0, 720px) minmax(260px, 1fr);
  align-items: center;
  gap: 44px;
}

.apply-copy h2 {
  max-width: 720px;
}

.apply-copy h2,
.apply .section-label {
  color: var(--white);
}

.apply-copy p {
  color: rgba(255, 255, 255, 0.76);
}

.apply-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
}

.site-footer {
  padding: 34px 0;
  color: rgba(255, 255, 255, 0.68);
  background: #061e36;
}

.footer-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.58fr);
  align-items: start;
  gap: 28px 48px;
}

.footer-layout div {
  display: grid;
  gap: 2px;
}

.footer-layout strong {
  color: var(--gold-2);
  font-size: 1.4rem;
}

.footer-layout span {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.footer-layout p {
  margin: 0;
  text-align: right;
}

.footer-layout a {
  color: var(--gold-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-disclaimer {
  grid-column: 1 / -1;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.84rem;
  line-height: 1.6;
  text-align: left;
}

.floating-actions {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 30;
  display: grid;
  gap: 10px;
}

.floating-btn {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.24);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
}

.floating-btn.whatsapp {
  background: #128c7e;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (max-width: 1080px) {
  .nav-menu {
    gap: 18px;
  }

  .hero-layout,
  .split-layout,
  .fields-layout,
  .audience-grid,
  .apply-layout {
    grid-template-columns: 1fr;
  }

  .hero-layout {
    min-height: 0;
    padding-top: 74px;
  }

  .hero-visual {
    opacity: 0.42;
  }

  .hero-panel {
    max-width: 620px;
    justify-self: start;
  }

  .outcome-grid,
  .process-steps,
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .apply-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 30px), var(--container));
  }

  .nav {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 72px;
    gap: 12px;
    padding: 10px 0 12px;
  }

  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 0 0;
    color: var(--white);
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    scrollbar-width: none;
  }

  .nav-menu::-webkit-scrollbar {
    display: none;
  }

  .nav-menu a {
    flex: 0 0 auto;
    padding: 8px 10px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.07);
    font-size: 0.76rem;
  }

  .nav-menu a:hover {
    background: rgba(255, 255, 255, 0.08);
  }

  .nav-cta {
    display: none;
  }

  .header-actions {
    display: none !important;
  }

  .header-actions .nav-cta {
    display: none;
  }

  .header-actions .lang-switch {
    display: inline-flex !important;
    width: 96px !important;
  }

  .header-actions .lang-btn {
    min-width: 38px;
    padding: 7px 8px;
    font-size: 0.72rem;
  }

  .nav-lang-mobile {
    display: none;
  }

  .mobile-header-lang {
    position: fixed;
    top: 16px;
    left: 250px;
    z-index: 140;
    display: inline-flex;
    width: 96px;
    padding: 4px;
    border: 1px solid var(--line-light);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
  }

  .mobile-header-lang .lang-btn {
    min-width: 38px;
    padding: 7px 8px;
    font-size: 0.72rem;
  }

  @media (max-width: 360px) {
    .mobile-header-lang {
      left: 214px;
    }
  }

  .brand-mark strong {
    font-size: 1.65rem;
  }

  .brand-mark small {
    max-width: 150px;
    font-size: 0.62rem;
  }

  .hero {
    min-height: auto;
  }

  .hero-layout {
    padding: 62px 0 72px;
    gap: 34px;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(2.2rem, 9.8vw, 2.8rem);
    line-height: 1.08;
    word-break: break-all;
    overflow-wrap: anywhere;
  }

  .lang-en .hero h1 {
    font-size: clamp(1.55rem, 7vw, 1.9rem);
    line-height: 1.16;
    word-break: normal;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    max-width: 260px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-copy,
  .hero-panel,
  .hero-subtitle,
  .hero-lead {
    width: 100%;
    max-width: calc(100vw - 30px);
    overflow-wrap: anywhere;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-visual {
    display: none;
  }

  .hero-panel {
    padding: 18px;
  }

  .panel-logo {
    grid-template-columns: 64px minmax(0, 1fr);
    padding: 18px;
  }

  .panel-logo img {
    width: 64px;
    height: 64px;
  }

  .panel-logo strong {
    font-size: 0.9rem;
    max-width: 20ch;
    word-break: break-word;
  }

  .overview-illustration {
    width: 100%;
    max-width: 300px;
  }

  .proof-grid,
  .outcome-grid,
  .process-steps {
    grid-template-columns: 1fr;
  }

  .proof-grid div,
  .proof-grid div:last-child {
    border-right: 0;
    border-left: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .section {
    padding: 76px 0;
  }

  .split-layout,
  .fields-layout,
  .audience-grid,
  .apply-layout {
    gap: 28px;
  }

  .field-cloud span {
    max-width: 100%;
  }

  .footer-layout {
    display: grid;
  }

  .footer-layout p {
    text-align: left;
  }
}