:root {
  --bg: #050814;
  --bg-soft: #0a1020;
  --bg-panel: rgba(8, 14, 28, .74);
  --bg-panel-strong: rgba(7, 12, 24, .92);
  --line: rgba(255, 255, 255, .08);
  --line-soft: rgba(255, 255, 255, .05);
  --text: #f5f7fb;
  --muted: #9ba7bd;
  --accent: #ff5a62;
  --accent-2: #ff8b75;
  --cyan: #7de7ea;
  --cyan-soft: #7ed7ff;
  --gold: #ffd593;
  --shadow: 0 24px 60px rgba(0, 0, 0, .34);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: min(1200px, calc(100vw - 40px));
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 90, 98, .18), transparent 28%),
    radial-gradient(circle at 100% 0%, rgba(125, 231, 234, .14), transparent 28%),
    linear-gradient(180deg, #03060f 0%, #050916 38%, #040711 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .05;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .18));
  z-index: -3;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(640px circle at var(--mx, 50%) var(--my, 10%), rgba(255, 90, 98, .10), transparent 35%),
    radial-gradient(580px circle at 90% 0%, rgba(125, 231, 234, .06), transparent 34%);
  pointer-events: none;
  z-index: -2;
}

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

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

button {
  font: inherit
}

canvas#stars {
  position: fixed;
  inset: 0;
  z-index: -4;
  opacity: .85;
}

.cursor-glow {
  position: fixed;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 95, 103, .16), rgba(255, 95, 103, .06) 36%, rgba(125, 231, 234, .04) 58%, transparent 72%);
  filter: blur(10px);
  pointer-events: none;
  mix-blend-mode: screen;
  z-index: -1;
  transform: translate(-50%, -50%);
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: linear-gradient(180deg, rgba(4, 8, 18, .92), rgba(4, 8, 18, .66));
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  /* border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .10);
  background: linear-gradient(180deg, rgba(255, 90, 98, .24), rgba(255, 90, 98, .08));
  box-shadow: 0 0 28px rgba(255, 90, 98, .18), inset 0 1px 0 rgba(255, 255, 255, .08); */
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  inset: auto;
}

/* .brand-mark::before {
  width: 18px;
  height: 18px;
  left: 12px;
  top: 11px;
  border-radius: 6px;
  background: linear-gradient(180deg, #fff, rgba(255, 255, 255, .82));
  opacity: .9;
}

.brand-mark::after {
  width: 8px;
  height: 8px;
  left: 17px;
  top: 17px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(255, 90, 98, .36);
} */

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-copy strong {
  font-size: 18px;
  letter-spacing: -.03em;
}

.brand-copy span {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  text-transform: uppercase;
}

.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links a {
  padding: 11px 14px;
  border-radius: 999px;
  color: #d8e1f3;
  transition: .25s ease;
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, .05);
  border-color: rgba(255, 255, 255, .06);
  color: #fff;
}

.lang-switch {
  display: flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .09);
  background: rgba(255, 255, 255, .04);
}

.lang-switch button {
  appearance: none;
  border: 0;
  color: #d4def2;
  background: transparent;
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
}

.lang-switch button.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(255, 90, 98, .34), rgba(255, 90, 98, .18));
  box-shadow: 0 0 18px rgba(255, 90, 98, .16);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, .10);
  font-weight: 700;
  transition: .22s ease;
  white-space: nowrap;
}

.button.primary {
  color: #fff;
  background: linear-gradient(90deg, #ff6268, #ff836f);
  box-shadow: 0 12px 34px rgba(255, 90, 98, .24);
}

.button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(255, 90, 98, .30);
}

.button.secondary {
  background: rgba(255, 255, 255, .03);
}

.button.secondary:hover,
.button.subtle:hover {
  background: rgba(255, 255, 255, .06);
}

.button.subtle {
  background: rgba(255, 255, 255, .02);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .10);
  background: rgba(255, 255, 255, .04);
  color: #fff;
  cursor: pointer;
  font-size: 18px;
}

.mobile-panel {
  display: none;
  padding: 0 0 18px;
}

.mobile-panel .nav-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.mobile-panel .nav-links a {
  padding: 10px 10px
}

.mobile-panel.open {
  display: block
}

.main {
  padding-bottom: 110px;
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 0 56px;
}

.hero.compact {
  min-height: 560px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 10% 18% auto 18%;
  height: 360px;
  background: radial-gradient(circle at center, rgba(255, 90, 98, .16), transparent 52%);
  filter: blur(10px);
  pointer-events: none;
}

.hero-stack {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
}

.hero-icon {
  width: 94px;
  height: 94px;
  border-radius: 28px;
  margin: 0 auto 20px;
  background: linear-gradient(180deg, rgba(255, 90, 98, .22), rgba(255, 90, 98, .08));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 0 32px rgba(255, 90, 98, .22);
  position: relative;
}

.hero-icon::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 18px;
  /* background:
    radial-gradient(circle at 50% 35%, rgba(255,255,255,.85), rgba(255,255,255,.22) 34%, transparent 35%),
    linear-gradient(180deg, rgba(255,255,255,.12), transparent); */
  /* border:1px solid rgba(255,255,255,.10); */
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .03);
  color: #ffc3bf;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.wordmark,
.page-title {
  margin: 18px 0 14px;
  font-weight: 900;
  line-height: .96;
  letter-spacing: -.06em;
  background: linear-gradient(90deg, #ff5c61 10%, #ff9c80 46%, #eef2f5 72%, #8fe6ea 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.wordmark {
  font-size: clamp(64px, 12vw, 124px);
}

.page-title {
  font-size: clamp(48px, 8vw, 88px);
}

.subtitle {
  margin: 0 auto 18px;
  max-width: 760px;
  font-size: clamp(18px, 2.5vw, 28px);
  line-height: 1.7;
  color: #f3f6fb;
}

.lead {
  margin: 0 auto;
  max-width: 850px;
  font-size: 18px;
  line-height: 1.9;
  color: var(--muted);
}

.hero-note {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 100%;
  padding: 12px 18px;
  margin: 28px auto 0;
  border-radius: 999px;
  background: rgba(5, 11, 22, .76);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.hero-note .badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ff6268, #ff846f);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.hero-note .copy {
  color: #dde7f8;
  font-size: 15px;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.metric-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.metric-card {
  padding: 20px;
  border-radius: 22px;
  background: rgba(8, 14, 28, .54);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.metric-card strong {
  display: block;
  font-size: 34px;
  margin-bottom: 6px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.section {
  padding: 86px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 14px 0 0;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.06;
  letter-spacing: -.04em;
}

.section-head p {
  margin: 0;
  max-width: 520px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

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

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

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

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

.card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(9, 15, 28, .72), rgba(7, 12, 24, .94));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, .06), transparent 28%);
  pointer-events: none;
}

.card h3,
.card h4 {
  margin: 0 0 10px;
  letter-spacing: -.03em;
}

.card h3 {
  font-size: 24px
}

.card h4 {
  font-size: 20px
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.claw-image-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 10px;
}

.claw-image-card img,
.claw-image-caption {
  display: block;
  opacity: .6;
  transition: opacity .25s ease;
}

.claw-image-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.claw-image-card img {
  width: 100%;
  min-height: 220px;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 10px);
}

.claw-image-card:hover img,
.claw-image-card:hover .claw-image-caption {
  opacity: 1;
}

.claw-image-caption {
  padding: 0 6px 4px;
  color: #f4f7fb;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  text-align: center;
  text-decoration: none;
}

.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  color: #ffc3bf;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.label .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 14px rgba(255, 90, 98, .34);
}

.split {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 28px;
  align-items: center;
}

.panel {
  padding: 30px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(7, 12, 24, .84), rgba(7, 12, 24, .96));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.panel h3 {
  margin: 0 0 14px;
  font-size: clamp(28px, 5vw, 42px);
  letter-spacing: -.04em;
  line-height: 1.08;
}

.panel p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

.placeholder-frame {
  padding: 10px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.placeholder-frame img {
  width: 100%;
  border-radius: 20px;
}

.pill-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.pill {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .04);
  color: #dce5f7;
  font-size: 13px;
}

.number-stack {
  display: grid;
  gap: 16px;
}

.number-card {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .03);
}

.number {
  width: 78px;
  height: 78px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -.05em;
  color: #fff;
  background: linear-gradient(180deg, rgba(255, 90, 98, .24), rgba(255, 90, 98, .08));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 0 24px rgba(255, 90, 98, .16);
}

.number-card h4 {
  margin: 4px 0 8px;
  font-size: 22px;
}

.number-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.stack-banner {
  padding: 34px;
  border-radius: 32px;
  background:
    linear-gradient(180deg, rgba(255, 90, 98, .12), rgba(125, 231, 234, .05)),
    rgba(7, 12, 24, .88);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.stack-banner h3 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5vw, 46px);
  letter-spacing: -.04em;
}

.stack-banner p {
  margin: 0;
  color: #edf3fb;
  font-size: 18px;
  line-height: 1.9;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 18px;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .03);
}

.timeline-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 90, 98, .18);
  color: #ffd6d1;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.timeline-item h4 {
  margin: 8px 0 8px;
  font-size: 24px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.quote-panel {
  padding: 32px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(7, 12, 24, .90), rgba(7, 12, 24, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.quote-panel p {
  margin: 0;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.35;
  letter-spacing: -.04em;
  color: #f4f7fb;
}

.quote-panel small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.footer {
  margin-top: 10px;
  padding: 32px 0 48px;
  border-top: 1px solid rgba(255, 255, 255, .06);
}

.footer-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: end;
}

.footer-brand p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-certificates {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 14px;
}

.footer-certificates-title {
  color: #f4f7fb;
  font-weight: 700;
}

.footer-certificates-list {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-certificates-list a {
  color: var(--muted);
  text-decoration: none;
  transition: .22s ease;
}

.footer-certificates-list a:hover {
  color: #f4f7fb;
}

.footer-socials {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.social-link {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #e9effa;
  transition: .22s ease;
}

.social-link:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, .08);
  box-shadow: 0 12px 24px rgba(0, 0, 0, .20);
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.footnote {
  font-size: 14px;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

[data-lang="zh"] .t-en,
[data-lang="en"] .t-zh {
  display: none !important;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0)
  }

  50% {
    transform: translateY(-10px)
  }
}

@media (max-width: 1100px) {
  .split {
    grid-template-columns: 1fr
  }

  .grid.cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr))
  }

  .grid.cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr))
  }
}

@media (max-width: 860px) {

  .nav-links,
  .nav-actions {
    display: none
  }

  .menu-toggle {
    display: block
  }

  .hero {
    min-height: auto;
    padding: 68px 0 54px;
  }

  .metric-grid,
  .grid.cols-2,
  .grid.cols-3,
  .grid.cols-4 {
    grid-template-columns: 1fr;
  }

  .certificate-carousel {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .certificate-carousel::-webkit-scrollbar {
    display: none;
  }

  .certificate-carousel .claw-image-card {
    flex: 0 0 min(86%, 360px);
    scroll-snap-align: center;
    scroll-snap-stop: always;
  }

  .section-head {
    display: block;
  }

  .section-head p {
    max-width: none;
    margin-top: 16px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .number-card {
    grid-template-columns: 1fr;
  }

  .footer-line {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .footer-right {
    justify-content: flex-start;
  }

  .footer-certificates,
  .footer-certificates-list {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100vw - 24px, 100%)
  }

  .footer-certificates,
  .footer-certificates-list {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .page-title {
    font-size: 52px
  }

  .wordmark {
    font-size: 60px
  }

  .subtitle {
    font-size: 18px
  }

  .lead {
    font-size: 16px
  }

  .hero-note {
    padding: 10px 12px;
    gap: 10px;
  }

  .hero-note .copy {
    font-size: 13px;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .card,
  .panel,
  .stack-banner,
  .timeline-item,
  .quote-panel,
  .metric-card {
    padding: 20px;
  }
}


/* -------- varied hero layouts (v5) -------- */
body[data-page="home"] .hero::before {
  inset: 6% 6% auto auto;
  height: 440px;
  background:
    radial-gradient(circle at 72% 32%, rgba(255, 90, 98, .18), transparent 38%),
    radial-gradient(circle at 24% 18%, rgba(125, 231, 234, .10), transparent 30%);
}

body[data-page="philosophy"] .hero::before {
  inset: 8% 10% auto 10%;
  height: 420px;
  background:
    radial-gradient(circle at 24% 34%, rgba(255, 90, 98, .18), transparent 36%),
    radial-gradient(circle at 78% 16%, rgba(169, 114, 255, .10), transparent 30%);
}

body[data-page="architecture"] .hero::before {
  inset: 8% 8% auto auto;
  height: 420px;
  background:
    radial-gradient(circle at 82% 26%, rgba(125, 231, 234, .12), transparent 34%),
    radial-gradient(circle at 28% 28%, rgba(255, 90, 98, .16), transparent 34%);
}

body[data-page="ecosystem"] .hero::before {
  inset: 10% 14% auto 14%;
  height: 430px;
  background:
    radial-gradient(circle at 74% 28%, rgba(255, 211, 147, .12), transparent 32%),
    radial-gradient(circle at 26% 24%, rgba(255, 90, 98, .16), transparent 34%);
}

body[data-page="about"] .hero::before {
  inset: 8% 12% auto auto;
  height: 430px;
  background:
    radial-gradient(circle at 78% 24%, rgba(255, 90, 98, .16), transparent 34%),
    radial-gradient(circle at 24% 22%, rgba(125, 231, 234, .08), transparent 28%);
}

.hero-home,
.hero-philosophy,
.hero-architecture,
.hero-ecosystem,
.hero-about {
  min-height: auto;
  padding: 94px 0 68px;
}

.hero-home-grid,
.hero-philosophy-grid,
.hero-architecture-grid,
.hero-ecosystem-grid,
.hero-about-grid {
  display: grid;
  gap: 28px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-home-grid {
  grid-template-columns: 1.06fr .94fr;
}

.hero-philosophy-grid {
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}

.hero-architecture-grid {
  grid-template-columns: .98fr 1.02fr;
}

.hero-ecosystem-grid {
  grid-template-columns: 1fr 1fr;
}

.hero-about-grid {
  grid-template-columns: 1fr .94fr;
  align-items: start;
}

.hero-copy-left {
  text-align: left;
  position: relative;
  z-index: 1;
}

.hero-copy-left .wordmark,
.hero-copy-left .page-title {
  text-align: left;
  margin-top: 16px;
}

.hero-copy-left .subtitle {
  margin: 0 0 18px;
  max-width: 760px;
  text-align: left;
}

.hero-copy-left .lead {
  margin: 0;
  max-width: 760px;
  text-align: left;
}

.hero-copy-left .hero-note {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  margin: 26px 0 0;
  border-radius: 24px;
  padding: 16px 18px;
}

.hero-copy-left .hero-note .copy {
  line-height: 1.7
}

.hero-copy-left .hero-actions {
  justify-content: flex-start;
}

.hero-pill-strip {
  justify-content: flex-start;
}

.mini-kicker,
.tiny-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .04);
  color: #ffd0cb;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* change */
/* .showcase-card,
.arch-visual,
.orbit-board,
.about-rail {
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(9, 15, 28, .84), rgba(7, 12, 24, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
} */

.showcase-card {
  padding: 18px;
}

.showcase-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.showcase-screen {
  padding: 10px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 255, 255, .08);
}

.showcase-screen img {
  width: 100%;
  border-radius: 18px;
}

.showcase-bottom {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.micro-panel,
.insight-card,
.arch-mini,
.thesis-card,
.orbit-node,
.about-role-card,
.about-boundary-card {
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .04);
  box-shadow: 0 16px 32px rgba(0, 0, 0, .16);
}

.micro-panel {
  padding: 16px;
}

.micro-panel span {
  display: block;
  margin-bottom: 8px;
  color: #ffc8c3;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.micro-panel strong {
  display: block;
  font-size: 18px;
  letter-spacing: -.03em;
  margin-bottom: 6px;
}

.micro-panel p,
.insight-card p,
.arch-mini p,
.thesis-card p,
.about-role-card p,
.about-boundary-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.hero-insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.insight-card {
  padding: 16px;
}

.insight-card strong {
  display: block;
  margin: 10px 0 6px;
  font-size: 20px;
  letter-spacing: -.04em;
}

.manifest-bar {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: linear-gradient(90deg, rgba(255, 90, 98, .14), rgba(125, 231, 234, .08));
  color: #eef4fb;
  font-size: 16px;
  line-height: 1.8;
}

.thesis-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-content: start;
}

.thesis-card {
  padding: 24px;
}

.thesis-card.large,
.thesis-card.wide {
  grid-column: span 2;
}

.thesis-card h3 {
  margin: 12px 0 10px;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -.04em;
}

.thesis-card:not(.large):not(.wide) h3 {
  font-size: 24px;
}

.arch-visual {
  padding: 20px;
}

.arch-visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  color: #c9d4e7;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.arch-layer-stack {
  display: grid;
  gap: 12px;
}

.arch-layer {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
}

.arch-layer:nth-child(2) {
  margin-left: 14px
}

.arch-layer:nth-child(3) {
  margin-left: 28px
}

.arch-layer:nth-child(4) {
  margin-left: 42px
}

.arch-layer:nth-child(5) {
  margin-left: 28px
}

.arch-layer:nth-child(6) {
  margin-left: 14px
}

.arch-layer-no {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(180deg, rgba(255, 90, 98, .28), rgba(125, 231, 234, .16));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 0 22px rgba(255, 90, 98, .14);
}

.arch-layer strong {
  display: block;
  font-size: 18px;
  letter-spacing: -.03em;
}

.arch-layer small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.arch-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.arch-mini {
  padding: 16px;
}

.arch-mini strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
  letter-spacing: -.03em;
}

.orbit-board {
  position: relative;
  min-height: 430px;
  padding: 28px;
  overflow: hidden;
}

.orbit-board::before,
.orbit-board::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .08);
}

.orbit-board::before {
  width: 330px;
  height: 330px;
}

.orbit-board::after {
  width: 460px;
  height: 460px;
  opacity: .45;
}

.orbit-center-card {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 220px;
  height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: 50%;
  padding: 24px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, .10), rgba(255, 255, 255, .03));
  border: 1px solid rgba(255, 255, 255, .10);
  box-shadow: 0 0 40px rgba(255, 90, 98, .18);
}

.orbit-center-card strong {
  display: block;
  font-size: 22px;
  letter-spacing: -.04em;
}

.orbit-center-card span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.orbit-node {
  position: absolute;
  max-width: 182px;
  padding: 14px 16px;
  text-align: center;
}

.orbit-node strong {
  display: block;
  font-size: 18px;
  letter-spacing: -.03em;
}

.orbit-node span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.node-1 {
  left: 2%;
  top: 14%;
}

.node-2 {
  right: 8%;
  top: 12%;
}

.node-3 {
  right: 2%;
  top: 50%;
  transform: translateY(-50%);
}

.node-4 {
  right: 10%;
  bottom: 10%;
}

.node-5 {
  left: 10%;
  bottom: 10%;
}

.node-6 {
  left: 2%;
  top: 50%;
  transform: translateY(-50%);
}

.orbit-caption {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 18px;
  text-align: center;
  color: #dbe6f8;
  font-size: 14px;
  line-height: 1.8;
}

.about-rail {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 18px 18px 18px 36px;
}

.about-rail::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(180deg, rgba(255, 90, 98, .9), rgba(125, 231, 234, .45));
}

.about-role-card {
  position: relative;
  padding: 22px 22px 22px 24px;
}

.about-role-card::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(255, 90, 98, .28);
}

.about-role-card .step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .06);
  color: #ffd0cb;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.about-role-card h3 {
  margin: 12px 0 10px;
  font-size: 28px;
  line-height: 1.12;
  letter-spacing: -.04em;
}

.about-boundary-card {
  padding: 18px 20px;
  background: rgba(255, 255, 255, .03);
  border-style: dashed;
}

.about-boundary-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
  letter-spacing: -.03em;
}

@media (max-width: 1100px) {

  .hero-home-grid,
  .hero-philosophy-grid,
  .hero-architecture-grid,
  .hero-ecosystem-grid,
  .hero-about-grid {
    grid-template-columns: 1fr;
  }

  .showcase-bottom,
  .hero-insight-grid,
  .arch-mini-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {

  .hero-home,
  .hero-philosophy,
  .hero-architecture,
  .hero-ecosystem,
  .hero-about {
    padding: 72px 0 54px;
  }

  .hero-copy-left .hero-note {
    border-radius: 20px;
  }

  .showcase-bottom,
  .hero-insight-grid,
  .thesis-board,
  .arch-mini-grid {
    grid-template-columns: 1fr;
  }

  .thesis-card.large,
  .thesis-card.wide {
    grid-column: auto;
  }

  .arch-layer:nth-child(2),
  .arch-layer:nth-child(3),
  .arch-layer:nth-child(4),
  .arch-layer:nth-child(5),
  .arch-layer:nth-child(6) {
    margin-left: 0;
  }

  .orbit-board {
    min-height: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 18px;
  }

  .orbit-board::before,
  .orbit-board::after,
  .orbit-caption {
    display: none;
  }

  .orbit-center-card,
  .orbit-node {
    position: static;
    transform: none;
    width: auto;
    height: auto;
    max-width: none;
  }

  .orbit-center-card {
    grid-column: 1 / -1;
    border-radius: 24px;
    padding: 22px;
  }

  .about-rail {
    padding-left: 28px;
  }

  .about-rail::before {
    left: 12px;
  }

  .about-role-card::before {
    left: -18px;
  }
}

@media (max-width: 560px) {

  .showcase-card,
  .arch-visual,
  .orbit-board,
  .thesis-card,
  .about-role-card,
  .about-boundary-card {
    padding: 18px;
  }

  .showcase-top {
    justify-content: flex-start;
  }

  .orbit-board {
    grid-template-columns: 1fr;
  }

  .about-rail {
    padding: 16px 14px 16px 26px;
  }

  .about-role-card h3,
  .thesis-card h3 {
    font-size: 24px;
  }
}


body.menu-open {
  overflow: hidden
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .03);
  color: #eef3ff;
  padding: 11px 16px;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: .22s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(180deg, rgba(255, 90, 98, .18), rgba(255, 90, 98, .08));
  border-color: rgba(255, 120, 137, .28);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 78, 106, .12);
}

.accent-word {
  background: linear-gradient(180deg, #ffe6ea 0%, #ff9aac 55%, #ff526d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.case-hero {
  min-height: auto;
  padding: 92px 0 44px;
}

.case-hero-inner {
  max-width: 980px;
}

.usecase-announcement {
  margin-top: 26px;
}

.featured-cases-section {
  padding-top: 34px;
}

.featured-lobster-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.featured-lobster-card {
  padding: 24px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(9, 15, 28, .84), rgba(7, 12, 24, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.featured-lobster-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.featured-emoji {
  font-size: 28px;
  line-height: 1;
}

.featured-label {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .04);
  font-size: 12px;
  color: #ffd6d1;
}

.featured-lobster-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
  letter-spacing: -.03em;
}

.featured-lobster-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.case-link,
.usecase-link,
.story-link,
.see-all-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: #ff7f93;
  font-weight: 700;
  font-size: 14px;
}

.case-link:hover,
.usecase-link:hover,
.story-link:hover,
.see-all-link:hover {
  color: #fff;
}

.case-filter-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.case-filter-head h2 {
  margin: 12px 0 0;
  font-size: clamp(28px, 4.8vw, 46px);
  line-height: 1.08;
  letter-spacing: -.04em;
}

.case-filter-row {
  margin-bottom: 22px;
}

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

.usecase-card {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(7, 12, 24, .84), rgba(6, 11, 22, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
  transition: .22s ease;
}

.usecase-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, .14);
}

.usecase-card.accent h3 {
  color: #ff6178;
}

.usecase-card.hidden,
.story-card.hidden {
  display: none;
}

.usecase-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.usecase-icon {
  font-size: 20px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
}

.usecase-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(14, 22, 44, .85);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #c7d7ff;
  font-size: 12px;
}

.usecase-card h3 {
  margin: 0 0 10px;
  font-size: 32px;
  line-height: 1.12;
  letter-spacing: -.04em;
}

.usecase-desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
  font-size: 15px;
}

.usecase-meta {
  margin-top: auto;
  padding-top: 18px;
  color: #8aa0c7;
  font-size: 13px;
  border-top: 1px solid rgba(255, 255, 255, .06);
}

.hero-blog {
  min-height: auto;
  padding: 94px 0 58px;
}

.hero-blog-grid {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 28px;
  align-items: center;
}

.featured-story {
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(9, 15, 28, .86), rgba(7, 12, 24, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.story-cover {
  padding: 12px;
}

.story-cover img {
  width: 100%;
  border-radius: 22px;
}

.story-cover.large {
  padding: 14px 14px 0;
}

.featured-story-copy {
  padding: 22px 24px 24px;
}

.featured-story-copy h3 {
  margin: 12px 0 12px;
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -.04em;
}

.featured-story-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

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

.story-card {
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(9, 15, 28, .84), rgba(7, 12, 24, .98));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.story-body {
  padding: 0 22px 22px;
}

.story-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #8ea5cc;
  font-size: 13px;
}

.story-tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #ffd6d1;
  font-size: 12px;
}

.story-card h3 {
  margin: 14px 0 10px;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -.03em;
}

.story-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

@media (max-width: 1200px) {
  .featured-lobster-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr))
  }

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

@media (max-width: 860px) {

  .hero-blog-grid,
  .case-filter-head {
    grid-template-columns: 1fr;
    display: block;
  }

  .case-filter-head .see-all-link {
    margin-top: 14px;
  }

  .featured-lobster-grid,
  .usecase-grid,
  .story-grid {
    grid-template-columns: 1fr;
  }
}


/* -------- typography refinement (v7) -------- */
:root {
  --font-sans-zh: "SF Pro SC", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --font-sans-en: Inter, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-display-zh: "SF Pro SC", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --font-display-en: Inter, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-ui-zh: "SF Pro SC", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --font-ui-en: Inter, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

html {
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans-zh);
  font-weight: 435;
  line-height: 1.74;
  font-synthesis-weight: none;
  font-synthesis-style: none;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
}

body[data-lang="zh"] {
  --font-body-active: var(--font-sans-zh);
  --font-display-active: var(--font-display-zh);
  --font-ui-active: var(--font-ui-zh);
  --body-tracking: .006em;
  --heading-tracking: -.028em;
  --heading-weight: 740;
  --body-weight: 435;
  --ui-weight: 620;
  --body-leading: 1.92;
}

body[data-lang="en"] {
  --font-body-active: var(--font-sans-en);
  --font-display-active: var(--font-display-en);
  --font-ui-active: var(--font-ui-en);
  --body-tracking: -.008em;
  --heading-tracking: -.050em;
  --heading-weight: 790;
  --body-weight: 440;
  --ui-weight: 620;
  --body-leading: 1.78;
}

body[data-lang] {
  font-family: var(--font-body-active);
  font-weight: var(--body-weight);
  letter-spacing: var(--body-tracking);
}

.t-zh {
  font-family: var(--font-sans-zh);
  letter-spacing: 0;
}

.t-en {
  font-family: var(--font-sans-en);
  letter-spacing: -.01em;
}

.brand-copy strong,
.wordmark,
.metric-card strong,
.number,
.footnote,
.case-source,
.post-meta,
.social-link {
  font-family: var(--font-sans-en);
}

h1,
h2,
h3,
h4,
h5,
h6,
.wordmark,
.page-title,
.section-head h2,
.panel h3,
.stack-banner h3,
.case-card h3,
.post-card h3,
.featured-post-copy h2,
.featured-story-copy h3,
.quote-panel p,
.number-card h4,
.timeline-item h4,
.about-role-card h3,
.arch-layer strong,
.orbit-center-card strong,
.orbit-node strong,
.brand-copy strong {
  font-family: var(--font-display-active);
  font-weight: var(--heading-weight);
  letter-spacing: var(--heading-tracking);
  text-wrap: balance;
}

p,
li,
.lead,
.subtitle,
.panel p,
.card p,
.section-head p,
.case-card p,
.post-card p,
.featured-post-copy p,
.featured-story-copy p,
.quote-panel small,
.timeline-item p,
.number-card p,
.about-role-card p,
.about-boundary-card p,
.story-card p {
  line-height: var(--body-leading);
  text-wrap: pretty;
}

.hero-stack .lead,
.hero-stack .subtitle,
.hero-stack p,
.section-head p,
.panel p,
.stack-banner p,
.quote-panel small,
.card p,
.case-card p,
.post-card p,
.timeline-item p,
.about-role-card p,
.about-boundary-card p,
.number-card p,
.featured-post-copy p,
.featured-story-copy p,
.story-card p {
  font-weight: var(--body-weight);
}

.kicker,
.label,
.pill,
.button,
.nav-links a,
.lang-switch button,
.hero-note .badge,
.hero-note .copy,
.case-tag,
.timeline-tag,
.post-chip,
.filter-btn,
.text-link,
.case-link,
.announcement .badge,
.announcement span:last-child,
.story-tag,
.story-meta {
  font-family: var(--font-ui-active);
  font-weight: var(--ui-weight);
}

body[data-lang="zh"] .kicker,
body[data-lang="zh"] .label,
body[data-lang="zh"] .pill,
body[data-lang="zh"] .nav-links a,
body[data-lang="zh"] .lang-switch button,
body[data-lang="zh"] .hero-note .badge,
body[data-lang="zh"] .case-tag,
body[data-lang="zh"] .timeline-tag,
body[data-lang="zh"] .post-chip,
body[data-lang="zh"] .post-meta,
body[data-lang="zh"] .story-tag,
body[data-lang="zh"] .story-meta {
  letter-spacing: .035em;
}

body[data-lang="en"] .kicker,
body[data-lang="en"] .label,
body[data-lang="en"] .pill,
body[data-lang="en"] .nav-links a,
body[data-lang="en"] .lang-switch button,
body[data-lang="en"] .hero-note .badge,
body[data-lang="en"] .case-tag,
body[data-lang="en"] .timeline-tag,
body[data-lang="en"] .post-chip,
body[data-lang="en"] .post-meta,
body[data-lang="en"] .story-tag,
body[data-lang="en"] .story-meta {
  letter-spacing: .085em;
}

body[data-lang="zh"] .page-title {
  font-size: clamp(44px, 7vw, 78px);
  line-height: 1.10;
}

body[data-lang="en"] .page-title {
  font-size: clamp(50px, 8vw, 90px);
  line-height: .98;
}

body[data-lang="zh"] .section-head h2,
body[data-lang="zh"] .panel h3,
body[data-lang="zh"] .stack-banner h3,
body[data-lang="zh"] .featured-post-copy h2,
body[data-lang="zh"] .featured-story-copy h3 {
  line-height: 1.12;
}

body[data-lang="en"] .section-head h2,
body[data-lang="en"] .panel h3,
body[data-lang="en"] .stack-banner h3,
body[data-lang="en"] .featured-post-copy h2,
body[data-lang="en"] .featured-story-copy h3 {
  line-height: 1.04;
}

body[data-lang="zh"] .subtitle {
  font-size: clamp(17px, 2.2vw, 24px);
}

body[data-lang="en"] .subtitle {
  font-size: clamp(18px, 2.5vw, 28px);
}

body[data-lang="zh"] .lead,
body[data-lang="zh"] .panel p,
body[data-lang="zh"] .card p,
body[data-lang="zh"] .section-head p,
body[data-lang="zh"] .timeline-item p,
body[data-lang="zh"] .post-card p,
body[data-lang="zh"] .case-card p,
body[data-lang="zh"] .featured-post-copy p,
body[data-lang="zh"] .featured-story-copy p,
body[data-lang="zh"] .story-card p {
  font-size: 16.25px;
}

body[data-lang="en"] .lead,
body[data-lang="en"] .panel p,
body[data-lang="en"] .card p,
body[data-lang="en"] .section-head p,
body[data-lang="en"] .timeline-item p,
body[data-lang="en"] .post-card p,
body[data-lang="en"] .case-card p,
body[data-lang="en"] .featured-post-copy p,
body[data-lang="en"] .featured-story-copy p,
body[data-lang="en"] .story-card p {
  font-size: 15.75px;
}

.brand-copy span,
.post-meta,
.kicker,
.label,
.case-tag,
.timeline-tag,
.post-chip,
.story-tag,
.story-meta {
  text-transform: uppercase;
}

body[data-lang="zh"] .brand-copy span,
body[data-lang="zh"] .post-meta,
body[data-lang="zh"] .kicker,
body[data-lang="zh"] .label,
body[data-lang="zh"] .case-tag,
body[data-lang="zh"] .timeline-tag,
body[data-lang="zh"] .post-chip,
body[data-lang="zh"] .story-tag,
body[data-lang="zh"] .story-meta {
  text-transform: none;
}

body[data-lang="zh"] .card h3,
body[data-lang="zh"] .card h4,
body[data-lang="zh"] .case-card h3,
body[data-lang="zh"] .post-card h3,
body[data-lang="zh"] .timeline-item h4,
body[data-lang="zh"] .number-card h4,
body[data-lang="zh"] .about-role-card h3,
body[data-lang="zh"] .story-card h3 {
  line-height: 1.20;
}

body[data-lang="en"] .card h3,
body[data-lang="en"] .card h4,
body[data-lang="en"] .case-card h3,
body[data-lang="en"] .post-card h3,
body[data-lang="en"] .timeline-item h4,
body[data-lang="en"] .number-card h4,
body[data-lang="en"] .about-role-card h3,
body[data-lang="en"] .story-card h3 {
  line-height: 1.12;
}

@media (max-width: 860px) {
  body[data-lang="zh"] .page-title {
    font-size: clamp(38px, 10vw, 58px)
  }

  body[data-lang="en"] .page-title {
    font-size: clamp(40px, 10vw, 62px)
  }

  body[data-lang="zh"] .section-head h2 {
    line-height: 1.16
  }
}

@media (max-width: 560px) {
  .brand-copy strong {
    font-size: 17px;
  }

  .brand-copy span {
    font-size: 10px;
    letter-spacing: .08em;
  }

  body[data-lang="zh"] .subtitle,
  body[data-lang="en"] .subtitle {
    font-size: 17px;
  }

  body[data-lang="zh"] .lead,
  body[data-lang="zh"] .panel p,
  body[data-lang="zh"] .card p,
  body[data-lang="zh"] .case-card p,
  body[data-lang="zh"] .post-card p,
  body[data-lang="zh"] .timeline-item p,
  body[data-lang="zh"] .section-head p,
  body[data-lang="zh"] .featured-post-copy p,
  body[data-lang="zh"] .featured-story-copy p,
  body[data-lang="zh"] .story-card p,
  body[data-lang="en"] .lead,
  body[data-lang="en"] .panel p,
  body[data-lang="en"] .card p,
  body[data-lang="en"] .case-card p,
  body[data-lang="en"] .post-card p,
  body[data-lang="en"] .timeline-item p,
  body[data-lang="en"] .section-head p,
  body[data-lang="en"] .featured-post-copy p,
  body[data-lang="en"] .featured-story-copy p,
  body[data-lang="en"] .story-card p {
    font-size: 15.25px;
  }
}


/* v7 refined motion */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(var(--scroll-progress, 0));
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--cyan));
  box-shadow: 0 0 18px rgba(255, 90, 98, .24);
  z-index: 80;
  pointer-events: none
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 10% 8% 10%;
  height: 220px;
  background: radial-gradient(circle at 50% 50%, rgba(255, 90, 98, .10), transparent 56%);
  filter: blur(18px);
  pointer-events: none;
  animation: pulseField 9s ease-in-out infinite
}

.card,
.panel,
.stack-banner,
.timeline-item,
.quote-panel,
.metric-card,
.thesis-card,
.about-role-card,
.about-boundary-card,
.number-card,
.featured-lobster-card,
.usecase-card,
.story-card,
.featured-story,
.placeholder-frame,
.arch-visual {
  position: relative;
  overflow: hidden;
  transition: transform .34s ease, border-color .34s ease, box-shadow .34s ease
}

.card::after,
.panel::after,
.stack-banner::after,
.timeline-item::after,
.quote-panel::after,
.metric-card::after,
.thesis-card::after,
.about-role-card::after,
.about-boundary-card::after,
.number-card::after,
.featured-lobster-card::after,
.usecase-card::after,
.story-card::after,
.featured-story::after,
.placeholder-frame::after,
.arch-visual::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 56%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .06), transparent);
  transform: skewX(-22deg);
  pointer-events: none;
  transition: left .75s ease
}

@media (hover:hover) and (pointer:fine) {

  .card:hover,
  .panel:hover,
  .stack-banner:hover,
  .timeline-item:hover,
  .quote-panel:hover,
  .metric-card:hover,
  .thesis-card:hover,
  .about-role-card:hover,
  .about-boundary-card:hover,
  .number-card:hover,
  .featured-lobster-card:hover,
  .usecase-card:hover,
  .story-card:hover,
  .featured-story:hover,
  .placeholder-frame:hover,
  .arch-visual:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, .14);
    box-shadow: 0 30px 72px rgba(0, 0, 0, .42)
  }

  .card:hover::after,
  .panel:hover::after,
  .stack-banner:hover::after,
  .timeline-item:hover::after,
  .quote-panel:hover::after,
  .metric-card:hover::after,
  .thesis-card:hover::after,
  .about-role-card:hover::after,
  .about-boundary-card:hover::after,
  .number-card:hover::after,
  .featured-lobster-card:hover::after,
  .usecase-card:hover::after,
  .story-card:hover::after,
  .featured-story:hover::after,
  .placeholder-frame:hover::after,
  .arch-visual:hover::after {
    left: 120%
  }
}

.placeholder-frame img,
.story-cover img,
.featured-story .story-cover.large img,
.media-card img {
  animation: floatMedia 11s ease-in-out infinite;
  will-change: transform
}

.story-cover,
.placeholder-frame,
.media-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02))
}

.media-strip {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 18px
}

.media-card {
  padding: 10px;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
  overflow: hidden
}

.media-card img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  border-radius: 18px
}

.section-tight {
  padding-top: 8px;
  padding-bottom: 28px
}

.story-card .story-cover img {
  transition: transform .6s ease, filter .6s ease
}

.story-card:hover .story-cover img,
.featured-story:hover .story-cover img,
.placeholder-frame:hover img,
.media-card:hover img {
  transform: scale(1.035);
  filter: saturate(1.05)
}

.usecase-card,
.featured-lobster-card,
.story-card {
  backdrop-filter: blur(10px)
}

.hero-note,
.announcement,
.manifest-bar {
  animation: floatBadge 8s ease-in-out infinite
}

.hero-icon,
.hero .hero-icon,
.hero .hero-icon::before {
  animation: pulseIcon 7s ease-in-out infinite
}

.reveal {
  transition-delay: var(--reveal-delay, 0ms)
}

@keyframes floatMedia {

  0%,
  100% {
    transform: translate3d(0, 0, 0)
  }

  50% {
    transform: translate3d(0, -8px, 0)
  }
}

@keyframes pulseField {

  0%,
  100% {
    opacity: .65;
    transform: scale(1)
  }

  50% {
    opacity: 1;
    transform: scale(1.03)
  }
}

@keyframes floatBadge {

  0%,
  100% {
    transform: translateY(0)
  }

  50% {
    transform: translateY(-4px)
  }
}

@keyframes pulseIcon {

  0%,
  100% {
    transform: translateY(0) scale(1)
  }

  50% {
    transform: translateY(-4px) scale(1.02)
  }
}

@media (max-width: 980px) {
  .media-strip {
    grid-template-columns: 1fr
  }

  .section-tight {
    padding-top: 0
  }
}

@media (prefers-reduced-motion: reduce) {

  .hero::after,
  .placeholder-frame img,
  .story-cover img,
  .featured-story .story-cover.large img,
  .media-card img,
  .hero-note,
  .announcement,
  .manifest-bar,
  .hero-icon,
  .hero .hero-icon::before {
    animation: none !important
  }

  .card,
  .panel,
  .stack-banner,
  .timeline-item,
  .quote-panel,
  .metric-card,
  .thesis-card,
  .about-role-card,
  .about-boundary-card,
  .number-card,
  .featured-lobster-card,
  .usecase-card,
  .story-card,
  .featured-story,
  .placeholder-frame,
  .arch-visual,
  .story-cover img,
  .placeholder-frame img,
  .media-card img {
    transition: none !important
  }
}


/* resources dropdown */
.nav-dropdown {
  position: relative
}

.nav-drop-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 999px;
  color: #d8e1f3;
  transition: .25s ease;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
}

.nav-drop-toggle .chev,
.mobile-submenu-toggle .chev {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  transition: transform .24s ease;
}

.nav-dropdown:hover .nav-drop-toggle,
.nav-dropdown.open .nav-drop-toggle,
.nav-dropdown.active .nav-drop-toggle,
.nav-drop-toggle.active,
.nav-drop-toggle:focus-visible {
  background: rgba(255, 255, 255, .05);
  border-color: rgba(255, 255, 255, .06);
  color: #fff;
}

.nav-dropdown:hover .nav-drop-toggle .chev,
.nav-dropdown.open .nav-drop-toggle .chev,
.nav-dropdown.active .nav-drop-toggle .chev {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 190px;
  padding: 12px 10px 10px 10px;
  display: grid;
  gap: 4px;
  border-radius: 18px;
  background: rgba(6, 11, 22, .96);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .42);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

.nav-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  color: #dce6ff;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a.active {
  background: rgba(255, 255, 255, .06);
  color: #fff;
}

.mobile-submenu {
  width: 100%;
}

.mobile-submenu-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .08);
  color: #fff;
  cursor: pointer;
}

.mobile-submenu.active .mobile-submenu-toggle,
.mobile-submenu-toggle.active {
  background: rgba(255, 255, 255, .05);
  border-color: rgba(255, 255, 255, .10);
}

.mobile-submenu.active .mobile-submenu-toggle .chev,
.mobile-submenu-panel.open~.mobile-submenu-toggle .chev,
.mobile-submenu-toggle.active .chev {
  transform: rotate(180deg);
}

.mobile-submenu-panel {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 10px 0 0 14px;
}

.mobile-submenu-panel.open {
  display: flex
}

.mobile-submenu-panel a {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .06);
}

.mobile-submenu-panel a.active {
  background: rgba(255, 255, 255, .07);
  color: #fff;
}

/* learning page */
.hero-learn {
  position: relative;
  padding-top: 84px;
}

.learn-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
  align-items: stretch;
}

.learn-side-panel {
  display: flex;
  align-items: stretch;
}

.learn-side-card {
  width: 100%;
  padding: 28px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(9, 17, 32, .76), rgba(7, 13, 25, .94));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.learn-side-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: rgba(255, 255, 255, .03);
  color: #ffd6dc;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.learn-side-card h3 {
  margin: 16px 0 14px;
  font-size: 30px;
  line-height: 1.18;
  letter-spacing: -.03em;
}

.learn-side-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  display: grid;
  gap: 10px;
  line-height: 1.8;
}

.learning-shell {
  max-width: 1040px
}

.day-list {
  display: grid;
  gap: 18px;
}

.day-card {
  display: grid;
  grid-template-columns: 120px 64px 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px 28px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(7, 13, 27, .82), rgba(7, 13, 25, .96));
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow);
}

.day-mark {
  display: grid;
  gap: 8px;
  align-self: start;
  padding-top: 2px
}

.day-no {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .14em;
  color: #ff8a80;
}

.day-cn {
  font-size: 13px;
  color: var(--muted)
}

.day-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  font-size: 30px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05);
}

.day-copy h3 {
  margin: 0 0 10px;
  font-size: 34px;
  letter-spacing: -.04em;
  line-height: 1.1;
}

.day-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  max-width: 760px;
}

@media (max-width: 860px) {
  .mobile-panel .nav-links {
    display: none;
    width: 100%
  }

  .mobile-panel.open .nav-links {
    display: flex
  }

  .learn-hero-grid,
  .day-card {
    grid-template-columns: 1fr
  }

  .day-card {
    gap: 14px;
    padding: 22px
  }

  .day-icon {
    width: 56px;
    height: 56px;
    font-size: 26px
  }

  .day-copy h3 {
    font-size: 28px
  }
}

@media (max-width: 560px) {
  .nav-dropdown-menu {
    left: auto;
    right: 0
  }

  .learn-side-card h3 {
    font-size: 26px
  }

  .day-copy h3 {
    font-size: 24px
  }

  .day-no {
    font-size: 13px
  }
}

body[data-lang="zh"] [data-lang-content="en"],
body[data-lang="en"] [data-lang-content="zh"] {
  display: none !important;
}