:root {
  --bg: #050b14;
  --bg-soft: #0a1323;
  --bg-deep: #08101d;
  --surface: rgba(11, 20, 37, 0.76);
  --surface-strong: rgba(12, 22, 40, 0.92);
  --surface-muted: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f5f7fb;
  --text-soft: #97a6bf;
  --text-dim: #76839a;
  --gold: #d8b27a;
  --gold-strong: #f0cb91;
  --cyan: #78cbc5;
  --blue: #8eb3ff;
  --ink: #07111f;
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.34);
  --shadow-md: 0 18px 42px rgba(0, 0, 0, 0.24);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1180px, calc(100vw - 40px));
  --font-sans: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Canela", "Baskerville", "Times New Roman", "Songti SC", "Noto Serif SC", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  line-height: 1.65;
  background:
    radial-gradient(circle at 10% 15%, rgba(120, 203, 197, 0.18), transparent 24%),
    radial-gradient(circle at 88% 20%, rgba(216, 178, 122, 0.18), transparent 26%),
    radial-gradient(circle at 50% 120%, rgba(142, 179, 255, 0.1), transparent 34%),
    linear-gradient(180deg, #09111f 0%, var(--bg) 48%, #060c17 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent 85%);
  opacity: 0.55;
}

body::after {
  background: radial-gradient(circle at center, transparent 45%, rgba(0, 0, 0, 0.35) 100%);
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 1000;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(5, 11, 20, 0.42);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(5, 11, 20, 0.82);
  border-color: var(--line);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(145deg, var(--gold-strong) 0%, #b88a4e 100%);
  color: var(--ink);
  font-weight: 900;
  letter-spacing: 0.08em;
  box-shadow: 0 16px 38px rgba(214, 178, 122, 0.28);
}

.brand-copy {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  color: var(--text);
}

.brand-copy small {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 26px;
}

.site-nav a {
  color: var(--text-soft);
  font-size: 0.96rem;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  background: linear-gradient(145deg, var(--gold-strong) 0%, #c09258 100%);
  color: var(--ink) !important;
  font-weight: 700;
  box-shadow: 0 16px 34px rgba(214, 178, 122, 0.24);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero-section {
  position: relative;
  padding: 96px 0 76px;
}

.hero-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(18px);
  opacity: 0.75;
  pointer-events: none;
}

.hero-glow-left {
  left: -160px;
  top: -120px;
  background: radial-gradient(circle, rgba(120, 203, 197, 0.28) 0%, rgba(120, 203, 197, 0) 68%);
}

.hero-glow-right {
  right: -180px;
  top: 10px;
  background: radial-gradient(circle, rgba(216, 178, 122, 0.26) 0%, rgba(216, 178, 122, 0) 70%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: 56px;
  align-items: start;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: none;
}

.eyebrow::before,
.section-kicker::before {
  content: "";
  width: 38px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.hero-copy h1,
.section h2,
.hero-panel h2,
.contact-panel h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--text);
}

.hero-copy h1 {
  max-width: 10ch;
  font-size: clamp(2.8rem, 5.2vw, 5rem);
}

.hero-text,
.section-head p,
.section-copy p,
.journey-copy p,
.contact-panel p,
.program-card p,
.update-card p,
.faq-list p,
.signal-grid p,
.value-stack p,
.highlight-grid p,
.approach-timeline p,
.journey-board p,
.hero-panel p {
  color: var(--text-soft);
}

.hero-text {
  max-width: 60ch;
  margin: 28px 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  background: linear-gradient(145deg, var(--gold-strong) 0%, #be9157 100%);
  color: var(--ink);
  font-weight: 700;
  box-shadow: 0 18px 38px rgba(214, 178, 122, 0.22);
}

.btn-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 32px 0 0;
  list-style: none;
}

.hero-metrics li {
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-size: 0.95rem;
}

.hero-aside {
  position: relative;
  padding: 28px 0;
}

.hero-panel,
.contact-panel,
.value-stack article,
.program-card,
.update-card,
.highlight-grid article,
.signal-grid article,
.journey-board article,
.approach-timeline article,
.faq-list details {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 22, 39, 0.9) 0%, rgba(8, 14, 24, 0.88) 100%);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.hero-panel {
  position: relative;
  padding: 30px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.hero-panel::before,
.contact-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(145deg, rgba(216, 178, 122, 0.35), rgba(120, 203, 197, 0.18), rgba(255, 255, 255, 0.02));
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.panel-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(216, 178, 122, 0.18);
  background: rgba(216, 178, 122, 0.08);
  color: var(--gold-strong);
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-panel h2 {
  margin-top: 18px;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.journey-list {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.journey-list article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: start;
}

.journey-list span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--gold-strong);
  font-weight: 800;
}

.journey-list h3,
.program-card h3,
.update-card h3,
.highlight-grid h3,
.contact-panel h2,
.faq-list summary,
.signal-grid h2,
.value-stack strong,
.journey-board h3 {
  margin: 0;
}

.journey-list p,
.journey-board p,
.highlight-grid p,
.program-card p,
.update-card p,
.signal-grid p,
.value-stack p {
  margin: 8px 0 0;
}

.panel-note {
  margin-top: 24px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
}

.floating-card {
  position: absolute;
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(9, 18, 32, 0.94);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-md);
}

.floating-card strong {
  color: var(--text);
}

.floating-card span {
  color: var(--text-soft);
  font-size: 0.92rem;
}

.floating-card-top {
  top: 0;
  right: -30px;
}

.floating-card-bottom {
  bottom: -4px;
  left: -24px;
}

.signal-strip {
  padding: 10px 0 0;
}

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

.signal-grid article,
.program-card,
.update-card,
.highlight-grid article,
.journey-board article,
.value-stack article,
.approach-timeline article,
.faq-list details {
  padding: 28px;
  border-radius: var(--radius-lg);
}

.signal-grid h2,
.value-stack strong,
.program-card h3,
.update-card h3,
.highlight-grid h3,
.journey-board h3,
.faq-list summary {
  color: var(--text);
}

.section {
  padding: 112px 0 0;
}

.section:last-of-type {
  padding-bottom: 96px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  gap: 38px;
  align-items: start;
}

.split-layout-wide {
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
}

.section-copy h2,
.section-head h2,
.contact-panel h2 {
  font-size: clamp(2.1rem, 3.3vw, 3.4rem);
}

.section-copy p,
.journey-copy p {
  margin-top: 18px;
  max-width: 58ch;
}

.value-stack {
  display: grid;
  gap: 18px;
}

.value-stack strong {
  display: block;
  font-size: 1.16rem;
}

.section-head {
  max-width: 880px;
  margin-bottom: 34px;
}

.section-head p {
  margin: 18px 0 0;
}

.card-grid {
  display: grid;
  gap: 18px;
}

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

.program-card,
.update-card {
  min-height: 230px;
}

.program-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: rgba(216, 178, 122, 0.12);
  color: var(--gold-strong);
  font-weight: 800;
}

.approach-timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.approach-timeline article {
  position: relative;
  min-height: 212px;
}

.approach-timeline article::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(216, 178, 122, 0.9), rgba(120, 203, 197, 0.3));
}

.approach-timeline strong {
  display: block;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 1.16rem;
}

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

.journey-board h3 {
  font-family: var(--font-serif);
  font-size: 1.34rem;
}

.highlight-grid article {
  position: relative;
  min-height: 208px;
}

.highlight-grid article::after {
  content: "";
  position: absolute;
  inset: auto 28px 28px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(216, 178, 122, 0.95), rgba(120, 203, 197, 0.9));
}

.update-date {
  color: var(--gold-strong);
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin: 12px 0 0;
}

.contact-section {
  padding-bottom: 96px;
}

.contact-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.7fr);
  gap: 30px;
  padding: 36px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.contact-panel::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 178, 122, 0.22) 0%, rgba(216, 178, 122, 0) 70%);
  pointer-events: none;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-meta {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 8px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.contact-meta dt {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.contact-meta dd {
  margin: 8px 0 0;
  color: var(--text);
  font-weight: 600;
}

.site-footer {
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-brand,
.footer-copy {
  margin: 0;
}

.footer-brand {
  font-weight: 700;
  color: var(--text);
}

.footer-copy {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 0.96rem;
}

.icp-link {
  color: var(--text-soft);
  transition: color 0.2s ease;
}

.icp-link:hover,
.icp-link:focus-visible {
  color: var(--text);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@media (max-width: 1100px) {
  .hero-grid,
  .split-layout,
  .split-layout-wide,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .approach-timeline,
  .program-grid,
  .update-grid,
  .highlight-grid,
  .signal-grid,
  .contact-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .floating-card {
    position: static;
    margin-top: 18px;
  }

  .hero-aside {
    padding-bottom: 0;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 10px);
    display: grid;
    gap: 12px;
    padding: 18px;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(7, 14, 24, 0.96);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

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

  .site-nav a {
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
  }

  .header-cta {
    width: 100%;
  }

  .hero-section {
    padding-top: 72px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100vw - 28px, 100vw - 28px);
  }

  .header-inner {
    min-height: 76px;
  }

  .brand-copy small {
    font-size: 0.82rem;
  }

  .hero-copy h1 {
    max-width: 100%;
    font-size: clamp(2.6rem, 14vw, 4rem);
  }

  .hero-actions,
  .contact-actions,
  .contact-meta,
  .signal-grid,
  .program-grid,
  .update-grid,
  .highlight-grid,
  .approach-timeline,
  .journey-board {
    grid-template-columns: 1fr;
  }

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

  .hero-panel,
  .contact-panel,
  .signal-grid article,
  .program-card,
  .update-card,
  .highlight-grid article,
  .journey-board article,
  .value-stack article,
  .approach-timeline article,
  .faq-list details {
    padding: 22px;
  }

  .section {
    padding-top: 88px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}
