:root {
  --ink: #14212b;
  --muted: #5b6b78;
  --line: #d8e4e8;
  --paper: #fbfdfc;
  --soft: #eef6f3;
  --teal: #0a7c86;
  --teal-dark: #07515d;
  --blue: #174b7a;
  --indigo: #2f3d74;
  --gold: #b8872d;
  --danger: #9d2f3a;
  --shadow: 0 22px 60px rgba(15, 44, 63, 0.12);
  --radius: 8px;
  color-scheme: light;
  font-family: "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(216, 228, 232, 0.78);
  background: rgba(251, 253, 252, 0.94);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--teal-dark);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: #2c3b45;
  font-size: 14px;
}

.site-nav a {
  padding: 8px 2px;
}

.nav-pill,
.lang-switch,
.button {
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.nav-pill {
  padding: 9px 14px !important;
  background: #fff;
}

.lang-switch {
  padding: 9px 12px;
  background: #fff;
  color: var(--teal-dark);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.mobile-quick-links {
  display: none;
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  padding: clamp(56px, 9vw, 112px) clamp(20px, 5vw, 72px);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(251, 253, 252, 0.97), rgba(251, 253, 252, 0.8) 42%, rgba(251, 253, 252, 0.22));
}

.investor-hero::after {
  background: linear-gradient(90deg, rgba(20, 33, 43, 0.92), rgba(20, 33, 43, 0.74) 48%, rgba(20, 33, 43, 0.28));
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.investor-hero .hero-content {
  color: #fff;
}

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

.investor-hero .eyebrow,
.data-hero .eyebrow {
  color: #95e8ea;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.06;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 680px;
  color: #33434f;
  font-size: clamp(17px, 2vw, 20px);
}

.investor-hero .hero-copy {
  color: rgba(255, 255, 255, 0.86);
}

.hero-actions,
.footer-links,
.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.button.primary {
  border-color: var(--teal-dark);
  background: var(--teal-dark);
  color: #fff;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.88);
}

.button.danger {
  border-color: var(--danger);
  background: var(--danger);
  color: #fff;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 820px;
  margin: 42px 0 0;
}

.signal-strip div {
  min-height: 92px;
  padding: 18px;
  border: 1px solid rgba(216, 228, 232, 0.82);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.signal-strip dt {
  color: var(--gold);
  font-weight: 900;
}

.signal-strip dd {
  margin: 4px 0 0;
  color: #24333d;
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 5vw, 72px);
  scroll-margin-top: 88px;
}

.compact-section {
  padding-top: 48px;
  padding-bottom: 48px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 38px;
}

.section-heading.wide {
  max-width: 980px;
}

.intro-band {
  background: #fff;
}

.muted-section {
  background: var(--soft);
}

.three-column,
.service-grid,
.knowledge-grid,
.metric-grid,
.timeline-grid,
.risk-grid,
.finance-grid,
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card,
.service-grid article,
.metric-grid article,
.timeline-grid article,
.finance-grid article,
.team-grid article,
.risk-grid article,
.download-item,
.admin-panel,
.access-panel,
.locked-box,
.confidential-stamp,
.note-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 34px rgba(15, 44, 63, 0.06);
}

.feature-card,
.service-grid article,
.metric-grid article,
.timeline-grid article,
.finance-grid article,
.team-grid article,
.risk-grid article {
  padding: 24px;
}

.icon-badge,
.timeline-grid span,
.metric-grid span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
}

.feature-card p,
.service-grid p,
.application-item p,
.finance-grid p,
.risk-grid span,
.team-grid span,
.download-item p,
.metric-grid p,
.timeline-grid p {
  color: var(--muted);
}

.staged-section {
  background: linear-gradient(180deg, #fff 0%, #f1f8f7 100%);
}

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

.staged-growth article,
.partner-flow article,
.flow-detail,
.tech-panel,
.platform-detail {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 34px rgba(15, 44, 63, 0.06);
}

.staged-growth article,
.partner-flow article {
  position: relative;
  min-height: 210px;
  padding: 24px;
  overflow: hidden;
}

.staged-growth article::after,
.partner-flow article::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -46px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: rgba(10, 124, 134, 0.1);
}

.staged-growth span,
.partner-flow span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
}

.staged-growth p,
.partner-flow p {
  color: var(--muted);
}

.interactive-flow {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(260px, 0.75fr) minmax(320px, 1fr);
  gap: 22px;
  align-items: stretch;
}

.flow-steps {
  display: grid;
  gap: 10px;
}

.flow-step,
.tech-tab,
.platform-row {
  border: 1px solid var(--line);
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 14px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-weight: 900;
}

.flow-step span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-size: 12px;
}

.flow-step.active,
.tech-tab.active,
.platform-row.active {
  border-color: rgba(10, 124, 134, 0.58);
  background: #f3fbfb;
}

.flow-visual {
  position: relative;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 50%, rgba(149, 232, 234, 0.42), transparent 38%),
    linear-gradient(145deg, #ffffff, #e6f4f4);
  overflow: hidden;
}

.flow-orbit {
  position: absolute;
  inset: 28px;
  border: 1px dashed rgba(10, 124, 134, 0.38);
  border-radius: 50%;
}

.flow-node {
  position: absolute;
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  border: 1px solid rgba(10, 124, 134, 0.28);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: var(--teal-dark);
  font-weight: 900;
  box-shadow: 0 12px 28px rgba(15, 44, 63, 0.1);
}

.flow-node:nth-child(1) {
  top: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.flow-node:nth-child(2) {
  top: 30%;
  right: -8px;
}

.flow-node:nth-child(3) {
  right: 12%;
  bottom: 0;
}

.flow-node:nth-child(4) {
  left: 12%;
  bottom: 0;
}

.flow-node:nth-child(5) {
  top: 30%;
  left: -8px;
}

.flow-node.active {
  background: var(--teal-dark);
  color: #fff;
  transform: scale(1.08);
}

.flow-node:nth-child(1).active {
  transform: translateX(-50%) scale(1.08);
}

.flow-detail,
.tech-panel,
.platform-detail {
  padding: 28px;
}

.flow-detail h3,
.tech-panel h3,
.platform-detail h3 {
  font-size: 26px;
}

.flow-detail p,
.tech-panel p,
.platform-detail p,
.platform-detail li {
  color: var(--muted);
}

.tech-interactive {
  display: grid;
  gap: 14px;
}

.tech-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.tech-tab {
  min-height: 54px;
  padding: 12px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-weight: 900;
  text-align: center;
}

.tech-panel span {
  display: inline-grid;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 8px;
  background: var(--teal-dark);
  color: #fff;
  font-weight: 900;
}

.platform-interactive {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(320px, 1.05fr);
  gap: 24px;
  align-items: start;
}

.platform-row {
  width: 100%;
  color: var(--ink);
}

.platform-detail {
  position: sticky;
  top: 96px;
}

.platform-detail ul {
  display: grid;
  gap: 10px;
  padding-left: 20px;
  margin: 18px 0 0;
}

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

.knowledge-center {
  background: #102f43;
  color: #fff;
}

.knowledge-center .eyebrow {
  color: #95e8ea;
}

.knowledge-center .section-heading p {
  color: rgba(255, 255, 255, 0.78);
}

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

.knowledge-panel {
  min-height: 330px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.16);
}

.knowledge-panel h3 {
  color: #fff;
  font-size: 25px;
}

.knowledge-panel p {
  color: rgba(255, 255, 255, 0.76);
}

.exosome-visual,
.bluexo-position {
  grid-column: span 2;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 28px;
  align-items: center;
}

.exosome-diagram {
  position: relative;
  min-height: 300px;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 50%, rgba(149, 232, 234, 0.28), transparent 44%),
    rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.cell-shell {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  width: 172px;
  height: 172px;
  place-items: center;
  border: 3px solid rgba(149, 232, 234, 0.8);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-weight: 900;
  transform: translate(-50%, -50%);
}

.cargo-dot {
  position: absolute;
  display: grid;
  width: 86px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(149, 232, 234, 0.55);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 900;
}

.cargo-dot:nth-of-type(2) {
  left: 10%;
  top: 26%;
}

.cargo-dot:nth-of-type(3) {
  right: 9%;
  top: 31%;
}

.cargo-dot:nth-of-type(4) {
  left: 18%;
  bottom: 18%;
}

.address-tag {
  position: absolute;
  right: 12%;
  bottom: 16%;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
  background: var(--gold);
  color: #fff;
  font-weight: 900;
}

.application-orbit,
.challenge-grid,
.capability-wheel,
.position-flow {
  margin: 22px 0;
}

.application-orbit {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.application-orbit span,
.challenge-grid span,
.capability-wheel span,
.position-flow span,
.position-flow strong {
  display: grid;
  min-height: 72px;
  place-items: center;
  padding: 12px;
  border: 1px solid rgba(149, 232, 234, 0.35);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-align: center;
  font-weight: 900;
}

.application-orbit span:nth-child(3) {
  background: rgba(149, 232, 234, 0.2);
}

.challenge-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.challenge-grid span {
  min-height: 86px;
  background: rgba(184, 135, 45, 0.18);
  border-color: rgba(184, 135, 45, 0.42);
}

.capability-wheel {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.capability-wheel span {
  min-height: 96px;
  border-radius: 50%;
  background: rgba(149, 232, 234, 0.16);
}

.position-flow {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 12px;
  align-items: center;
}

.position-flow strong {
  min-height: 120px;
  background: #fff;
  color: var(--teal-dark);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.16);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(28px, 6vw, 84px);
  align-items: center;
}

.text-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--teal-dark);
  font-weight: 900;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.platform-map,
.partner-list,
.application-list,
.evidence-stack {
  display: grid;
  gap: 12px;
}

.platform-row,
.partner-list li,
.application-item,
.evidence-stack div {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.platform-row strong,
.platform-row em,
.partner-list strong,
.partner-list span,
.evidence-stack strong,
.evidence-stack span {
  display: block;
}

.platform-row span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-weight: 900;
}

.platform-row em,
.partner-list span,
.evidence-stack span {
  grid-column: 2;
  color: var(--muted);
  font-style: normal;
}

.platform-row.active {
  border-color: rgba(10, 124, 134, 0.48);
  background: #f3fbfb;
}

.partner-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

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

.application-item {
  display: block;
}

.knowledge-section {
  background: #102f43;
  color: #fff;
}

.knowledge-section .eyebrow {
  color: #95e8ea;
}

.knowledge-grid a {
  min-height: 150px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.knowledge-grid strong,
.knowledge-grid span {
  display: block;
}

.knowledge-grid span {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.74);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(28px, 6vw, 84px);
  align-items: start;
  background: #fff;
}

.contact-form,
.access-form,
.locked-box form,
.admin-panel form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: #33434f;
  font-size: 14px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px 13px;
}

textarea {
  resize: vertical;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--teal-dark);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #fff;
}

.site-footer p {
  margin: 4px 0 0;
  color: var(--muted);
}

.footer-button {
  border: 0;
  background: transparent;
  color: var(--teal-dark);
  cursor: pointer;
  font-weight: 800;
}

.investor-summary {
  background: #fff;
}

.metric-grid article strong {
  display: block;
  margin-bottom: 10px;
  font-size: 26px;
  line-height: 1.1;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.tab {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-weight: 900;
}

.tab.active {
  border-color: var(--teal-dark);
  background: var(--teal-dark);
  color: #fff;
}

.access-panel,
.locked-box,
.admin-panel {
  padding: 24px;
}

.access-form {
  display: none;
}

.access-form.active {
  display: grid;
}

.note-box {
  margin-top: 22px;
  padding: 16px;
}

.note-box span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: #eef3f4;
  color: var(--blue);
}

.locked-state {
  min-height: calc(100vh - 72px);
  display: grid;
  place-items: center;
  padding: 40px 20px;
  background: var(--soft);
}

.locked-box {
  width: min(640px, 100%);
}

.data-hero {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: center;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px);
  background: #102f43;
  color: #fff;
}

.data-hero p {
  color: rgba(255, 255, 255, 0.78);
}

.confidential-stamp {
  padding: 22px;
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: none;
}

.confidential-stamp span,
.confidential-stamp strong,
.confidential-stamp em {
  display: block;
}

.confidential-stamp strong {
  margin: 8px 0;
  font-size: 28px;
}

.confidential-stamp em {
  color: rgba(255, 255, 255, 0.7);
  font-style: normal;
}

.evidence-stack div {
  grid-template-columns: 88px 1fr;
}

.milestone-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.milestone-table [role="row"] {
  display: grid;
  grid-template-columns: 0.7fr 1.4fr 1.25fr 1.25fr;
  border-top: 1px solid var(--line);
}

.milestone-table [role="row"]:first-child {
  border-top: 0;
}

.milestone-table span {
  padding: 15px;
  border-left: 1px solid var(--line);
}

.milestone-table span:first-child {
  border-left: 0;
  font-weight: 900;
}

.table-head {
  background: var(--teal-dark);
  color: #fff;
  font-weight: 900;
}

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

.risk-grid strong,
.risk-grid span,
.team-grid strong,
.team-grid span {
  display: block;
}

.download-permission {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.download-permission strong,
.download-permission span {
  display: block;
}

.download-permission span {
  color: var(--gold);
  font-weight: 900;
}

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

.download-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 20px;
}

.download-item span {
  color: var(--muted);
}

.locked-label {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-weight: 900;
}

.admin-panel {
  margin-top: 24px;
}

.admin-actions {
  margin-top: 16px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 980px) {
  .menu-toggle {
    display: block;
  }

  .mobile-quick-links {
    position: sticky;
    top: 66px;
    z-index: 24;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(251, 253, 252, 0.96);
    backdrop-filter: blur(14px);
    scrollbar-width: none;
  }

  .mobile-quick-links::-webkit-scrollbar {
    display: none;
  }

  .mobile-quick-links a {
    flex: 0 0 auto;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--teal-dark);
    font-size: 14px;
    font-weight: 900;
  }

  .site-nav {
    position: fixed;
    inset: 72px 14px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a,
  .site-nav button {
    width: 100%;
    text-align: left;
  }

  .hero {
    min-height: 760px;
  }

  .hero::after,
  .investor-hero::after {
    background: linear-gradient(180deg, rgba(251, 253, 252, 0.96), rgba(251, 253, 252, 0.86) 58%, rgba(251, 253, 252, 0.32));
  }

  .investor-hero::after {
    background: linear-gradient(180deg, rgba(20, 33, 43, 0.94), rgba(20, 33, 43, 0.82) 60%, rgba(20, 33, 43, 0.4));
  }

  .signal-strip,
  .three-column,
  .staged-growth,
  .interactive-flow,
  .platform-interactive,
  .partner-flow,
  .knowledge-story,
  .exosome-visual,
  .bluexo-position,
  .service-grid,
  .knowledge-grid,
  .metric-grid,
  .timeline-grid,
  .finance-grid,
  .application-list,
  .risk-grid,
  .split-section,
  .contact-section,
  .data-hero {
    grid-template-columns: 1fr;
  }

  .flow-visual {
    min-height: 320px;
  }

  .platform-detail {
    position: static;
  }

  .exosome-visual,
  .bluexo-position {
    grid-column: auto;
  }

  .application-orbit,
  .challenge-grid,
  .capability-wheel,
  .position-flow {
    grid-template-columns: 1fr;
  }

  .capability-wheel span {
    min-height: 72px;
    border-radius: var(--radius);
  }

  .data-hero {
    padding-top: 56px;
  }

  .milestone-table {
    overflow-x: auto;
  }

  .milestone-table [role="row"] {
    min-width: 820px;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 66px;
    padding-inline: 14px;
  }

  .site-nav {
    inset-top: 66px;
  }

  .hero {
    min-height: 720px;
    padding-inline: 18px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 28px;
  }

  .section {
    padding-inline: 18px;
  }

  .platform-row,
  .partner-list li,
  .evidence-stack div,
  .download-item,
  .download-permission,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .tech-tabs {
    grid-template-columns: 1fr;
  }

  .flow-node {
    width: 60px;
    height: 60px;
    font-size: 13px;
  }

  .knowledge-panel {
    min-height: 0;
    padding: 22px;
  }

  .exosome-diagram {
    min-height: 270px;
  }

  .platform-row em,
  .partner-list span,
  .evidence-stack span {
    grid-column: 1;
  }

  .download-item,
  .download-permission,
  .site-footer {
    display: grid;
  }
}