:root {
  color-scheme: light;
  --ink: #10151d;
  --muted: #5c6675;
  --soft: #eef2f6;
  --paper: #fbfaf7;
  --white: #ffffff;
  --red: #b83f3a;
  --teal: #0b7b7d;
  --amber: #b87918;
  --blue: #2c5f91;
  --line: rgba(16, 21, 29, 0.12);
  --shadow: 0 24px 70px rgba(16, 21, 29, 0.16);
  --radius: 8px;
  --content: min(1160px, calc(100vw - 40px));
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: var(--content);
  margin: 16px auto 0;
  padding: 12px 14px;
  background: rgba(251, 250, 247, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(16, 21, 29, 0.12);
  backdrop-filter: blur(18px);
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(251, 250, 247, 0.96);
  box-shadow: 0 12px 36px rgba(16, 21, 29, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  background: var(--ink);
  color: var(--white);
  border-radius: 6px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 15px;
  line-height: 1.2;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  min-height: 40px;
  padding: 9px 13px;
  border-radius: 6px;
  color: #26313f;
  font-size: 14px;
  font-weight: 650;
}

.site-nav a:hover {
  background: rgba(16, 21, 29, 0.07);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: clamp(650px, 86svh, 850px);
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero picture,
.hero img,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero img {
  object-fit: cover;
  object-position: 55% center;
  filter: saturate(0.95) contrast(1.05);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 12, 17, 0.88) 0%, rgba(8, 12, 17, 0.68) 34%, rgba(8, 12, 17, 0.2) 70%),
    linear-gradient(0deg, rgba(8, 12, 17, 0.74) 0%, rgba(8, 12, 17, 0.08) 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  width: var(--content);
  min-height: clamp(650px, 86svh, 850px);
  margin: 0 auto;
  padding: 132px 0 46px;
}

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

.hero .eyebrow {
  color: #78d8d5;
}

h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 1060px;
  margin: 0;
  font-size: clamp(44px, 6.7vw, 86px);
  line-height: 1.02;
  letter-spacing: 0;
  overflow-wrap: normal;
  word-break: keep-all;
}

.hero-lede {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 16px 38px rgba(184, 63, 58, 0.28);
}

.button.ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.button.beyond {
  border-color: rgba(120, 216, 213, 0.78);
  color: var(--white);
  background: rgba(11, 123, 125, 0.64);
  box-shadow: 0 16px 38px rgba(11, 123, 125, 0.28);
  backdrop-filter: blur(12px);
}

.button.dark {
  background: var(--ink);
  box-shadow: none;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(760px, 100%);
  margin: 38px 0 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-facts div {
  min-height: 94px;
  padding: 18px;
  background: rgba(11, 16, 24, 0.42);
  backdrop-filter: blur(12px);
}

.hero-facts dt {
  font-size: 30px;
  font-weight: 850;
  line-height: 1;
}

.hero-facts dd {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

.section {
  width: var(--content);
  margin: 0 auto;
  padding: 92px 0;
}

.intro-band {
  padding-top: 72px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: 44px;
  align-items: end;
  margin-bottom: 36px;
}

.section-heading.narrow {
  display: block;
  max-width: 760px;
}

.section-heading h2,
.spotlight-copy h2,
.workshop-copy h2,
.closing h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow),
.spotlight-copy p,
.workshop-copy p,
.closing p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

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

.value-card,
.module-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.value-card {
  min-height: 260px;
  padding: 26px;
}

.card-index {
  color: var(--red);
  font-size: 12px;
  font-weight: 850;
}

.value-card h3,
.module-card h3,
.tab-panel h3 {
  margin: 18px 0 10px;
  font-size: 24px;
  line-height: 1.22;
}

.value-card p,
.module-card p,
.tab-panel p {
  margin: 0;
  color: var(--muted);
}

.modules-section {
  border-top: 1px solid var(--line);
}

.module-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 42px;
}

.module-card {
  position: relative;
  min-height: 300px;
  padding: 24px;
  overflow: hidden;
}

.module-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: var(--accent, var(--teal));
}

.module-card span {
  color: var(--accent, var(--teal));
  font-size: 12px;
  font-weight: 850;
}

.module-card.is-featured {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
}

.accent-red {
  --accent: var(--red);
}

.accent-teal {
  --accent: var(--teal);
}

.accent-amber {
  --accent: var(--amber);
}

.accent-blue {
  --accent: var(--blue);
}

.spotlight {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: 46px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: #25303d;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(11, 123, 125, 0.12);
}

.spotlight-media,
.proof-grid figure,
.workshop-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(16, 21, 29, 0.1);
}

.spotlight-media img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

figcaption {
  padding: 14px 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.proof-section {
  border-top: 1px solid var(--line);
}

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

.proof-grid img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #172039;
}

.beyond-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.74fr) minmax(0, 1.26fr);
  gap: 38px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.beyond-copy h2 {
  margin: 0;
  font-size: clamp(30px, 3.8vw, 48px);
  line-height: 1.14;
  letter-spacing: 0;
}

.beyond-points {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.beyond-points p {
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: #26313f;
}

.beyond-points strong {
  color: var(--blue);
}

.beyond-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 18px 48px rgba(16, 21, 29, 0.1);
}

.beyond-media img {
  aspect-ratio: 1734 / 1010;
  object-fit: contain;
  background: #f7f9fd;
}

.workshop {
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1.08fr);
  gap: 48px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.workshop-media img {
  aspect-ratio: 5 / 4;
  object-fit: contain;
  background: #eef1ff;
}

.tabs {
  margin-top: 28px;
}

.tab-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(16, 21, 29, 0.05);
}

.tab {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #344154;
  font: inherit;
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

.tab.is-active {
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 8px 18px rgba(16, 21, 29, 0.08);
}

.tab-panel {
  min-height: 190px;
  margin-top: 12px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.tab-panel h3 {
  margin-top: 0;
}

.closing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: min(1160px, calc(100vw - 40px));
  margin-bottom: 64px;
  padding: 44px;
  border-radius: var(--radius);
  background: #f2f5f4;
  border: 1px solid var(--line);
}

.closing div {
  max-width: 800px;
}

.contact-line {
  font-weight: 750;
}

.contact-line a {
  color: var(--teal);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: var(--content);
  margin: 0 auto;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .section-heading,
  .spotlight,
  .beyond-section,
  .workshop {
    grid-template-columns: 1fr;
  }

  .value-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

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

  .module-card.is-featured {
    transform: none;
  }

  .workshop-media img {
    aspect-ratio: 5 / 4;
  }

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

@media (max-width: 760px) {
  :root {
    --content: min(100vw - 28px, 1160px);
  }

  body {
    font-size: 15px;
  }

  .site-header {
    margin-top: 10px;
    padding: 10px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .brand strong {
    max-width: 180px;
    white-space: normal;
    font-size: 14px;
  }

  .brand small {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(251, 250, 247, 0.98);
    box-shadow: 0 18px 44px rgba(16, 21, 29, 0.16);
  }

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

  .site-nav a {
    min-height: 44px;
  }

  .hero,
  .hero-content {
    min-height: 720px;
  }

  .hero img {
    object-position: 63% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(8, 12, 17, 0.88) 0%, rgba(8, 12, 17, 0.62) 58%, rgba(8, 12, 17, 0.34) 100%),
      linear-gradient(0deg, rgba(8, 12, 17, 0.76) 0%, rgba(8, 12, 17, 0.14) 48%);
  }

  .hero-content {
    padding-top: 102px;
    padding-bottom: 26px;
  }

  h1 {
    font-size: 48px;
    max-width: 420px;
    word-break: normal;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 22px;
  }

  .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 22px;
  }

  .hero-facts div {
    min-height: 92px;
    padding: 14px 10px;
  }

  .hero-facts dt {
    font-size: 26px;
  }

  .hero-facts dd {
    font-size: 11px;
    line-height: 1.35;
  }

  .section {
    padding: 68px 0;
  }

  .section-heading h2,
  .spotlight-copy h2,
  .beyond-copy h2,
  .workshop-copy h2,
  .closing h2 {
    font-size: 32px;
  }

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

  .module-card,
  .value-card {
    min-height: auto;
  }

  .tab-list {
    grid-template-columns: 1fr;
  }

  .tab-panel {
    min-height: 220px;
  }

  .closing {
    padding: 26px;
    margin-bottom: 36px;
  }

  .site-footer {
    flex-direction: column;
    padding-bottom: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}