:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #eef4fb;
  --surface-dark: #0f1726;
  --text: #142033;
  --text-soft: #526078;
  --text-inverse: rgba(255, 255, 255, 0.78);
  --line: rgba(20, 32, 51, 0.08);
  --line-strong: rgba(20, 32, 51, 0.14);
  --primary: #1459ff;
  --primary-deep: #0c44cb;
  --cyan: #29b6f6;
  --green: #14b86f;
  --orange: #ff8c42;
  --shadow-lg: 0 28px 90px rgba(15, 23, 38, 0.12);
  --shadow-md: 0 18px 48px rgba(15, 23, 38, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f9fbff 0%, #f2f6fb 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(20, 89, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 89, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 28%, transparent 85%);
  pointer-events: none;
  z-index: -2;
}

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

button,
a.button {
  cursor: pointer;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(249, 251, 255, 0.76);
  border-bottom: 1px solid rgba(20, 32, 51, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-weight: 700;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #5a8cff);
  box-shadow: 0 14px 28px rgba(20, 89, 255, 0.28);
}

.brand__text {
  font-size: 1.1rem;
  letter-spacing: -0.03em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--text-soft);
  font-size: 0.96rem;
}

.site-nav a {
  position: relative;
  transition: color 180ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

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

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.text-link {
  color: var(--text-soft);
  font-size: 0.94rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

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

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #3479ff);
  box-shadow: 0 18px 30px rgba(20, 89, 255, 0.24);
}

.button--primary:hover {
  box-shadow: 0 22px 38px rgba(20, 89, 255, 0.3);
}

.button--ghost {
  color: var(--primary);
  border: 1px solid rgba(20, 89, 255, 0.24);
  background: rgba(255, 255, 255, 0.7);
}

.button--light {
  color: var(--primary);
  background: #fff;
}

.button--outline-light {
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  border-radius: 99px;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 38px;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), rgba(20, 89, 255, 0.15));
}

.eyebrow--inverse {
  color: #dce8ff;
}

.eyebrow--inverse::before {
  background: linear-gradient(90deg, #dce8ff, rgba(220, 232, 255, 0.18));
}

.section-heading h2,
.cta-section h2 {
  margin: 18px 0 0;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  letter-spacing: -0.05em;
}

.section-heading p,
.cta-section p {
  color: var(--text-soft);
  line-height: 1.85;
}
.yt-hero__copy,
.yt-scene-card,
.yt-aside-card,
.yt-company__facts article,
.value-card {
  border: 1px solid rgba(20, 32, 51, 0.06);
  background: rgba(255, 255, 255, 0.88);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.mini-card {
  min-height: 110px;
  padding: 16px;
  border-radius: 24px;
}

.mini-card span {
  display: block;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.mini-card strong {
  display: block;
  margin-top: 10px;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.8rem;
}

.mini-card--blue {
  background: linear-gradient(180deg, rgba(20, 89, 255, 0.1), rgba(20, 89, 255, 0.04));
}

.mini-card--green {
  background: linear-gradient(180deg, rgba(20, 184, 111, 0.1), rgba(20, 184, 111, 0.04));
}

.mini-card--orange {
  background: linear-gradient(180deg, rgba(255, 140, 66, 0.1), rgba(255, 140, 66, 0.04));
}

.chart-card {
  padding: 20px;
  border-radius: 28px;
}

.chart-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.chart-card__head p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.chart-card__head strong {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
}

.chart-card__head span {
  font-family: "Space Grotesk", sans-serif;
  color: var(--green);
  font-size: 1.1rem;
  font-weight: 700;
}

.callout {
  position: absolute;
  left: -28px;
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(20, 32, 51, 0.06);
  box-shadow: var(--shadow-md);
  animation: floatCard 2.8s ease-in-out infinite;
}

.callout__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), #45d794);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.callout p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.76rem;
}

.callout strong {
  display: block;
  margin-top: 4px;
  font-size: 0.98rem;
}

.section {
  padding: 108px 0;
}

.section--white {
  background: rgba(255, 255, 255, 0.72);
}

.section--surface {
  background: linear-gradient(180deg, rgba(226, 236, 250, 0.7), rgba(244, 247, 251, 0.9));
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 38px;
}

.section-heading--center {
  justify-content: center;
  text-align: center;
}

.section-heading h2,
.detail-copy h2,
.about-copy h2,
.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.02;
}

.section-heading p {
  max-width: 720px;
  margin: 14px 0 0;
}

.section-heading__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.value-card h3,
.yt-feature-stack strong,
.yt-scene-card h3,
.yt-aside-card h3,
.site-footer h3 {
  display: block;
  font-weight: 700;
}
.value-card h3 {
  margin: 0;
  font-size: 1.08rem;
}
.value-card p,
.site-footer p,
.site-footer li {
  margin: 8px 0 0;
  color: var(--text-soft);
  line-height: 1.75;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.about-stats article {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(20, 32, 51, 0.06);
}

.about-stats strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  color: var(--primary);
}

.about-stats span {
  display: block;
  margin-top: 6px;
  color: var(--text-soft);
}

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

.value-card {
  padding: 28px;
  border-radius: 28px;
  box-shadow: var(--shadow-md);
}

.value-card--offset {
  transform: translateY(30px);
}

.value-card span {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  color: var(--primary);
  background: rgba(20, 89, 255, 0.08);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.cta-section {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.12), transparent 40%),
    linear-gradient(135deg, #0d44c8, #091d56 78%);
}

.cta-section__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-section p {
  max-width: 760px;
  margin: 18px auto 0;
  color: var(--text-inverse);
}

.cta-section__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.site-footer {
  padding: 78px 0;
  color: #d8e1ee;
  background: var(--surface-dark);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.8fr repeat(3, 1fr);
  gap: 28px;
}

.brand--footer .brand__mark {
  box-shadow: none;
}

.site-footer__brand p {
  max-width: 460px;
}

.site-footer h3 {
  margin: 0 0 18px;
  color: #fff;
  font-size: 1rem;
}

.site-footer ul,
.footer-meta {
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-footer li + li {
  margin-top: 10px;
}

.site-footer a:hover {
  color: #fff;
}

.reveal {
  animation: revealUp 620ms ease both;
}

.reveal--delay {
  animation-delay: 120ms;
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-9px);
  }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translateY(26px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@media (max-width: 860px) {
  .site-header__inner {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav,
  .site-header__actions .text-link {
    display: none;
  }

  .site-nav.is-open {
    display: grid;
    order: 4;
    width: 100%;
    gap: 16px;
    padding: 12px 0 4px;
  }

  .site-nav.is-open a {
    padding: 8px 0;
  }

  .site-header__actions {
    margin-left: auto;
  }

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

  .value-card--offset {
    transform: none;
  }
}

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

  .section {
    padding: 82px 0;
  }

  .button {
    width: 100%;
  }

  .section-heading__actions,
  .cta-section__actions {
    width: 100%;
  }

  .value-card {
    padding: 22px;
  }
}

.yt-hero {
  padding: 56px 0 42px;
}

.yt-hero__copy,
.yt-scene-card,
.yt-aside-card,
.yt-company__facts article {
  border: 1px solid rgba(20, 32, 51, 0.08);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-md);
}

.yt-hero__copy {
  padding: 34px;
  border-radius: 30px;
}

.yt-hero__copy--solo {
  max-width: 860px;
}

.yt-hero__copy h1 {
  margin: 18px 0 0;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(2.8rem, 5vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.yt-hero__copy p,
.yt-feature-stack p,
.yt-scene-card p,
.yt-timeline p,
.yt-company__copy p,
.yt-contact p {
  color: var(--text-soft);
  line-height: 1.85;
}

.yt-hero__copy p {
  margin: 22px 0 0;
}

.yt-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.yt-hero__ticker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.yt-hero__ticker article {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(20, 89, 255, 0.06), rgba(255, 255, 255, 0.88));
}

.yt-hero__ticker strong,
.yt-company__facts strong {
  display: block;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.7rem;
}

.yt-hero__ticker span,
.yt-company__facts span {
  display: block;
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

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

.yt-scene-card {
  padding: 28px;
  border-radius: 26px;
}

.yt-scene-card span {
  display: inline-flex;
  min-height: 32px;
  padding: 0 12px;
  align-items: center;
  border-radius: 999px;
  background: rgba(20, 89, 255, 0.08);
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 700;
}

.yt-scene-card h3,
.yt-aside-card h3 {
  margin: 16px 0 0;
  font-size: 1.3rem;
}

.yt-scene-card ul,
.yt-aside-card ul {
  padding-left: 18px;
  margin: 18px 0 0;
  color: var(--text-soft);
  line-height: 1.9;
}

.yt-split {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: start;
}

.yt-split h2,
.yt-company__copy h2,
.yt-contact h2 {
  margin: 16px 0 0;
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.yt-feature-stack {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.yt-feature-stack article {
  padding: 20px 22px;
  border-left: 4px solid var(--primary);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 0 18px 18px 0;
}

.yt-feature-stack strong {
  display: block;
  font-size: 1.05rem;
}

.yt-feature-stack p {
  margin: 8px 0 0;
}

.yt-aside-card {
  padding: 24px;
  border-radius: 24px;
}

.yt-aside-card + .yt-aside-card {
  margin-top: 18px;
}

.yt-aside-card--dark {
  background: linear-gradient(145deg, #10214d, #0b55d5);
  color: #fff;
}

.yt-aside-card--dark p {
  color: rgba(255, 255, 255, 0.78);
  margin: 12px 0 0;
}

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

.yt-timeline article {
  position: relative;
  padding: 24px 20px 20px;
  border-top: 3px solid var(--primary);
  background: rgba(255, 255, 255, 0.78);
  border-radius: 0 0 22px 22px;
}

.yt-timeline span {
  display: block;
  font-weight: 700;
  font-size: 1.02rem;
}

.yt-timeline p {
  margin: 10px 0 0;
}

.yt-news-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.yt-news-strip a {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(20, 32, 51, 0.08);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease;
}

.yt-news-strip a:hover {
  transform: translateY(-2px);
  border-color: rgba(20, 89, 255, 0.3);
}

.yt-company {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: 28px;
  align-items: start;
}

.yt-company__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.yt-company__facts article {
  padding: 24px;
  border-radius: 24px;
}

.yt-contact {
  color: #fff;
  background: linear-gradient(135deg, #0c44cb, #091d56 78%);
}

.yt-contact__inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.yt-contact p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.78);
  margin: 16px 0 0;
}

.yt-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 1100px) {
  .yt-split,
  .yt-company,
  .yt-contact__inner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .yt-scene-grid,
  .yt-timeline,
  .yt-news-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .yt-hero__ticker,
  .yt-scene-grid,
  .yt-timeline,
  .yt-news-strip,
  .yt-company__facts {
    grid-template-columns: 1fr;
  }
}