:root {
  --bg: #ffffff;
  --panel: rgba(15, 23, 42, 0.04);
  --panel-strong: rgba(15, 23, 42, 0.06);
  --border: rgba(15, 23, 42, 0.10);
  --text: rgba(15, 23, 42, 0.92);
  --muted: rgba(15, 23, 42, 0.68);
  --muted2: rgba(15, 23, 42, 0.56);
  --brand: #4f46e5;
  --brand2: #06b6d4;
  --shadow: 0 18px 55px rgba(2, 6, 23, 0.12);
  --shadow-soft: 0 10px 28px rgba(2, 6, 23, 0.08);
  --radius: 18px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  text-decoration: underline;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 10px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: var(--shadow-soft);
  z-index: 100;
}

.skip:focus {
  left: 12px;
}

.bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(
      900px 500px at 20% 10%,
      rgba(79, 70, 229, 0.14),
      transparent 60%
    ),
    radial-gradient(
      800px 500px at 80% 20%,
      rgba(6, 182, 212, 0.12),
      transparent 60%
    ),
    radial-gradient(
      900px 700px at 50% 95%,
      rgba(79, 70, 229, 0.09),
      transparent 55%
    );
  filter: saturate(110%);
  pointer-events: none;
  z-index: -1;
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    1200px 420px at 50% 0%,
    rgba(2, 6, 23, 0.04),
    transparent 60%
  );
  opacity: 0.7;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 18px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(15, 23, 42, 0.10);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand__logo {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.4px;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.brand__logoImg {
  width: 34px;
  height: 34px;
  display: block;
  object-fit: contain;
}

.brand__text {
  font-weight: 800;
  text-transform: lowercase;
  letter-spacing: 0.3px;
}

.nav {
  display: flex;
  gap: 16px;
}

.nav__link {
  color: var(--muted);
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
}

.nav__link:hover {
  color: var(--text);
  background: rgba(15, 23, 42, 0.05);
  text-decoration: none;
}

.hero {
  padding: 66px 0 38px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
  align-items: center;
}

.badge {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 12px;
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  width: fit-content;
}

.hero__title {
  font-size: 56px;
  margin: 14px 0 8px;
  letter-spacing: 0.6px;
  line-height: 1.05;
}

.hero__subtitle {
  margin: 0;
  font-size: 20px;
  color: rgba(15, 23, 42, 0.86);
}

.hero__desc {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 52ch;
}

.cta {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.2px;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease,
    border-color 160ms ease;
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #ffffff;
  box-shadow: 0 18px 60px rgba(79, 70, 229, 0.20);
}

.btn--primary:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 22px 70px rgba(79, 70, 229, 0.22);
}

.btn--ghost {
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(15, 23, 42, 0.10);
  color: var(--text);
}

.btn--ghost:hover {
  text-decoration: none;
  transform: translateY(-1px);
  background: rgba(15, 23, 42, 0.06);
}

.fineprint {
  margin-top: 12px;
  color: var(--muted2);
  font-size: 12px;
}

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

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(15, 23, 42, 0.10);
  border-radius: 999px;
  color: rgba(15, 23, 42, 0.74);
  font-size: 12px;
  box-shadow: 0 10px 28px rgba(2, 6, 23, 0.06);
}

.pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
}

.mock {
  border-radius: 26px;
  border: 1px solid rgba(15, 23, 42, 0.10);
  background: rgba(15, 23, 42, 0.04);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mock__top {
  height: 44px;
  background: rgba(15, 23, 42, 0.04);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.mock__screen {
  padding: 18px;
}

.mock__img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.10);
  background: rgba(15, 23, 42, 0.02);
}

.section {
  padding: 48px 0;
}

.section--soft {
  background: rgba(15, 23, 42, 0.03);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.section__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: 0.2px;
}

.section__desc {
  margin: 10px 0 0;
  color: var(--muted);
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(15, 23, 42, 0.55);
}

.grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.card {
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 16px 16px 14px;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.card:hover {
  transform: translateY(-2px);
  background: rgba(15, 23, 42, 0.05);
  box-shadow: var(--shadow-soft);
}

.card__title {
  margin: 0;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.14),
    rgba(6, 182, 212, 0.12)
  );
  border: 1px solid rgba(15, 23, 42, 0.10);
}

.card__text {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.stats {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.stat {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(15, 23, 42, 0.10);
  padding: 14px 14px 12px;
  box-shadow: 0 12px 34px rgba(2, 6, 23, 0.06);
}

.stat__k {
  font-size: 12px;
  color: rgba(15, 23, 42, 0.62);
}

.stat__v {
  margin-top: 6px;
  font-weight: 850;
  font-size: 20px;
  letter-spacing: 0.2px;
}

.stat__s {
  margin-top: 6px;
  font-size: 13px;
  color: rgba(15, 23, 42, 0.55);
}

.qa {
  margin-top: 12px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 12px 14px;
}

.qa__q {
  cursor: pointer;
  font-weight: 700;
}

.qa__a {
  margin-top: 10px;
  color: var(--muted);
}

.qa[open] {
  background: rgba(15, 23, 42, 0.05);
}

.contact {
  margin-top: 18px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 14px;
}

.contact__item + .contact__item {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.contact__label {
  color: var(--muted2);
  font-size: 13px;
}

.contact__value {
  margin-top: 4px;
  font-weight: 650;
}

.muted {
  color: var(--muted2);
  font-weight: 500;
}

.quote {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.quote__item {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(15, 23, 42, 0.10);
  padding: 14px;
  box-shadow: 0 12px 34px rgba(2, 6, 23, 0.06);
}

.quote__text {
  color: rgba(15, 23, 42, 0.74);
  font-size: 14px;
}

.quote__from {
  margin-top: 10px;
  color: rgba(15, 23, 42, 0.56);
  font-size: 12px;
}

.ctaBand {
  margin-top: 18px;
  border-radius: 24px;
  background: linear-gradient(
    135deg,
    rgba(79, 70, 229, 0.10),
    rgba(6, 182, 212, 0.09)
  );
  border: 1px solid rgba(15, 23, 42, 0.10);
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.ctaBand__left {
  min-width: 240px;
}

.ctaBand__title {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.ctaBand__desc {
  margin: 8px 0 0;
  color: rgba(15, 23, 42, 0.64);
  font-size: 13px;
}

.footer {
  padding: 22px 0 26px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding-top: 16px;
}

.footer__links a {
  color: rgba(15, 23, 42, 0.78);
}

.footer__meta {
  color: var(--muted2);
}

.dot {
  margin: 0 8px;
  color: rgba(15, 23, 42, 0.28);
}

@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }
  .hero__title {
    font-size: 46px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .stats {
    grid-template-columns: 1fr;
  }
  .quote {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none;
  }
}