:root {
  --ink: #0b1215;
  --ink-2: #121c20;
  --paper: #f7f3ea;
  --paper-2: #fffaf0;
  --gold: #d9b66b;
  --gold-2: #a97929;
  --mint: #84d8c3;
  --coral: #e9785e;
  --muted: #aab7b2;
  --text: #eef5f2;
  --dark-text: #1d292c;
  --line: rgba(217, 182, 107, 0.35);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Aptos, Arial, sans-serif;
  line-height: 1.65;
}

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

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

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  padding: 12px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(11, 18, 21, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  height: 64px;
}

.brand-logo {
  width: 240px;
  height: auto;
  max-height: 60px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: rgba(238, 245, 242, 0.78);
  font-size: 14px;
}

.nav-links a:hover {
  color: var(--gold);
}

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

.lang-toggle,
.header-cta {
  min-width: 44px;
  min-height: 40px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  background: var(--gold);
  color: #172022;
  font-weight: 700;
}

.section-band {
  padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.light-band {
  background: var(--paper);
  color: var(--dark-text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.78fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  min-height: calc(100vh - 72px);
}

.hero-copy,
.bioage-copy,
.partner-copy {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 6.4vw, 82px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-lede,
.section-heading p,
.bioage-copy p,
.partner-copy p,
.contact p {
  color: rgba(238, 245, 242, 0.78);
  font-size: clamp(16px, 1.6vw, 19px);
}

.light-band .section-heading p,
.light-band article p,
.light-band .lookup-result,
.light-band label {
  color: rgba(29, 41, 44, 0.72);
}

.hero-actions,
.input-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.primary-button,
.secondary-button,
.lookup-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 6px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-weight: 800;
}

.primary-button,
.lookup-form button {
  background: var(--gold);
  color: #162022;
  box-shadow: 0 12px 34px rgba(217, 182, 107, 0.24);
}

.secondary-button {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text);
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.metric-row div,
.difference-grid article,
.loop-grid article,
.technology-grid article,
.waven-points article,
.scenario-grid article,
.course-timeline article,
.plp-grid article,
.lookup-panel,
.compliance-grid p {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.metric-row div {
  min-height: 92px;
  padding: 16px;
}

.metric-row strong {
  display: block;
  color: var(--mint);
  font-size: 18px;
}

.metric-row span {
  color: rgba(238, 245, 242, 0.72);
  font-size: 14px;
}

.hero-media,
.visual-panel,
.waven-image {
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-media img {
  width: 100%;
  height: min(78vh, 860px);
  aspect-ratio: 4 / 5;
  object-fit: contain;
  object-position: center;
  background: transparent;
}

.section-heading {
  max-width: 860px;
  margin-bottom: 36px;
}

.difference {
  background:
    linear-gradient(135deg, rgba(217, 182, 107, 0.12), rgba(132, 216, 195, 0.04) 45%, rgba(233, 120, 94, 0.06)),
    var(--ink-2);
}

.difference-lead {
  max-width: 980px;
  margin-bottom: 34px;
}

.difference-lead p {
  color: rgba(238, 245, 242, 0.78);
  font-size: clamp(16px, 1.6vw, 19px);
}

.difference-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.difference-grid article {
  min-height: 240px;
  padding: 24px;
  border-color: rgba(217, 182, 107, 0.24);
  background: rgba(255, 255, 255, 0.055);
}

.difference-grid strong {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--mint);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.difference-grid p {
  color: rgba(238, 245, 242, 0.72);
}

.loop-grid,
.technology-grid,
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.loop-grid article,
.technology-grid article,
.scenario-grid article,
.course-timeline article,
.plp-grid article {
  min-height: 220px;
  padding: 22px;
}

.light-band .loop-grid article,
.light-band .technology-grid article,
.light-band .course-timeline article,
.light-band .plp-grid article,
.lookup-panel {
  border-color: rgba(11, 18, 21, 0.11);
  background: rgba(255, 255, 255, 0.62);
}

.loop-grid span,
.technology-grid span,
.course-timeline span,
.plp-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: rgba(217, 182, 107, 0.18);
  color: var(--gold-2);
  font-weight: 900;
}

.platform-spine {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid rgba(11, 18, 21, 0.12);
  border-radius: 8px;
  background: #fff;
}

.platform-spine div {
  min-height: 108px;
  padding: 20px 18px;
  border-right: 1px solid rgba(11, 18, 21, 0.1);
}

.platform-spine div:last-child {
  border-right: 0;
}

.platform-spine span {
  display: block;
  color: rgba(29, 41, 44, 0.58);
  font-size: 13px;
  font-weight: 700;
}

.platform-spine strong {
  display: block;
  margin-top: 8px;
  color: var(--dark-text);
  font-size: clamp(18px, 2vw, 24px);
}

.bioage,
.partner {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}

.visual-panel img {
  width: 100%;
  aspect-ratio: 1.32 / 1;
  object-fit: cover;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.pill-list span {
  border: 1px solid rgba(132, 216, 195, 0.35);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--mint);
  background: rgba(132, 216, 195, 0.08);
  font-size: 14px;
}

.waven-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.waven-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: contain;
  background: transparent;
}

.waven-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.waven-points article {
  min-height: 148px;
  padding: 24px;
  border-color: rgba(11, 18, 21, 0.1);
  background: rgba(255, 255, 255, 0.68);
}

.scenario-grid article {
  border-color: rgba(217, 182, 107, 0.2);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.025));
}

.scenario-grid p,
.compliance-grid p {
  color: rgba(238, 245, 242, 0.72);
}

.course-timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.course-live-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
}

.course-live-card {
  min-height: 160px;
  padding: 22px;
  border: 1px solid rgba(11, 18, 21, 0.11);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
}

.course-live-card h3 {
  margin-bottom: 8px;
}

.course-live-meta {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-2);
}

.course-live-empty {
  grid-column: 1 / -1;
  color: rgba(11, 18, 21, 0.6);
}

.alliances {
  background:
    linear-gradient(180deg, rgba(132, 216, 195, 0.05), rgba(11, 18, 21, 0)),
    var(--ink);
}

.alliance-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: 20px;
}

.team-panel,
.partner-panel {
  border: 1px solid rgba(217, 182, 107, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  padding: clamp(22px, 4vw, 34px);
}

.partner-panel {
  display: grid;
  gap: 24px;
}

.team-list,
.logo-grid {
  display: grid;
  gap: 12px;
}

.team-list span,
.logo-grid span {
  display: flex;
  align-items: center;
  min-height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 12px 14px;
  color: rgba(238, 245, 242, 0.84);
  background: rgba(255, 255, 255, 0.04);
}

.logo-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.plp-system {
  margin-top: clamp(42px, 6vw, 72px);
  border-top: 1px solid rgba(11, 18, 21, 0.12);
  padding-top: clamp(34px, 5vw, 54px);
}

.compact-heading {
  max-width: 920px;
}

.plp-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.certificate {
  scroll-margin-top: 72px;
}

.lookup-panel {
  max-width: 900px;
  padding: clamp(20px, 4vw, 34px);
}

.lookup-form label {
  display: block;
  margin-bottom: 12px;
  font-weight: 800;
}

.lookup-form input {
  flex: 1 1 260px;
  min-height: 52px;
  border: 1px solid rgba(11, 18, 21, 0.18);
  border-radius: 6px;
  padding: 0 14px;
  background: #fff;
  color: var(--dark-text);
}

.lookup-form button {
  border: 0;
  cursor: pointer;
}

.lookup-result {
  margin-top: 22px;
  border-top: 1px solid rgba(11, 18, 21, 0.12);
  padding-top: 22px;
}

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

.certificate-card div {
  min-height: 72px;
  border: 1px solid rgba(11, 18, 21, 0.1);
  border-radius: 6px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.78);
}

.certificate-card span {
  display: block;
  color: rgba(29, 41, 44, 0.58);
  font-size: 13px;
}

.certificate-card strong {
  display: block;
  color: var(--dark-text);
  font-size: 17px;
}

.status-valid {
  color: #2d745f;
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.compliance-grid p {
  min-height: 146px;
  padding: 22px;
}

.contact {
  background: var(--paper-2);
  color: var(--dark-text);
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  max-width: 1160px;
}

.contact p {
  color: rgba(29, 41, 44, 0.72);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: rgba(238, 245, 242, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 1080px) {
  .nav-links {
    display: none;
  }

  .hero,
  .bioage,
  .partner,
  .waven-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-media img {
    height: auto;
    max-height: none;
  }

  .loop-grid,
  .difference-grid,
  .technology-grid,
  .scenario-grid,
  .compliance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-timeline,
  .course-live-grid,
  .plp-grid,
  .waven-points,
  .logo-grid.compact,
  .platform-spine {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .alliance-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 72px;
    gap: 12px;
  }

  .brand span:last-child {
    font-size: 16px;
  }

  .brand-logo {
    width: 168px;
    max-height: 44px;
  }

  .header-cta {
    display: none;
  }

  .section-band {
    padding: 54px 18px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 30px;
  }

  .metric-row,
  .difference-grid,
  .loop-grid,
  .technology-grid,
  .scenario-grid,
  .course-timeline,
  .course-live-grid,
  .plp-grid,
  .waven-points,
  .compliance-grid,
  .certificate-card,
  .logo-grid,
  .logo-grid.compact,
  .platform-spine {
    grid-template-columns: 1fr;
  }

  .metric-row div,
  .difference-grid article,
  .loop-grid article,
  .technology-grid article,
  .scenario-grid article,
  .course-timeline article,
  .plp-grid article,
  .compliance-grid p {
    min-height: auto;
  }

  .platform-spine div {
    border-right: 0;
    border-bottom: 1px solid rgba(11, 18, 21, 0.1);
  }

  .platform-spine div:last-child {
    border-bottom: 0;
  }

  .waven-image img {
    min-height: auto;
  }

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