:root {
  --ox-ink: #0e1621;
  --ox-ink-soft: #1c2a3a;
  --ox-mist: #d7e2ec;
  --ox-paper: #f3f7fb;
  --ox-apricot: #f0783c;
  --ox-apricot-deep: #d45c22;
  --ox-teal: #1a9b8e;
  --ox-teal-soft: #b8ebe4;
  --ox-line: rgba(14, 22, 33, 0.1);
  --ox-glow: rgba(240, 120, 60, 0.35);
  --ox-radius: 18px;
  --ox-shadow: 0 18px 48px rgba(14, 22, 33, 0.14);
  --ox-font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ox-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --ox-max: 1120px;
  --ox-header-h: 64px;
  --ox-dock-h: auto;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--ox-font);
  color: var(--ox-ink);
  background:
    radial-gradient(1200px 520px at 8% -10%, rgba(26, 155, 142, 0.16), transparent 60%),
    radial-gradient(900px 480px at 100% 0%, rgba(240, 120, 60, 0.18), transparent 55%),
    linear-gradient(180deg, #eef4f9 0%, var(--ox-paper) 38%, #e9f1f6 100%);
  line-height: 1.75;
  min-height: 100vh;
}

body.ox-lock {
  overflow: hidden;
}

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

a {
  color: var(--ox-teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--ox-apricot-deep);
}

.ox-wrap {
  width: min(100% - 2rem, var(--ox-max));
  margin-inline: auto;
}

.ox-topbar {
  position: sticky;
  top: 0;
  z-index: 80;
  backdrop-filter: blur(16px);
  background: rgba(243, 247, 251, 0.86);
  border-bottom: 1px solid var(--ox-line);
}

.ox-nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--ox-header-h);
  gap: 1rem;
}

.ox-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ox-ink);
}

.ox-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 8px 20px var(--ox-glow);
}

.ox-brand strong {
  font-family: var(--ox-display);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.ox-links {
  display: none;
  gap: 1.25rem;
  align-items: center;
}

.ox-links a {
  color: var(--ox-ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  position: relative;
}

.ox-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ox-apricot), var(--ox-teal));
  transition: width 0.25s ease;
}

.ox-links a:hover::after,
.ox-links a.is-active::after {
  width: 100%;
}

.ox-burger {
  width: 44px;
  height: 44px;
  border: 1px solid var(--ox-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.ox-burger span {
  width: 18px;
  height: 2px;
  background: var(--ox-ink);
  border-radius: 2px;
  transition: transform 0.2s ease;
}

.ox-veil {
  position: fixed;
  inset: 0;
  background: rgba(14, 22, 33, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 90;
}

.ox-veil.is-open {
  opacity: 1;
  pointer-events: auto;
}

.ox-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(82vw, 320px);
  height: 100%;
  background: linear-gradient(165deg, #122033, #1a2f3f 55%, #16343a);
  color: #fff;
  transform: translateX(105%);
  transition: transform 0.28s ease;
  z-index: 100;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ox-drawer.is-open {
  transform: translateX(0);
}

.ox-drawer a {
  color: #e8f4f2;
  text-decoration: none;
  padding: 0.75rem 0.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 1.05rem;
}

.ox-promo {
  background: linear-gradient(120deg, rgba(26, 155, 142, 0.12), rgba(240, 120, 60, 0.14));
  border-bottom: 1px solid var(--ox-line);
  padding: 0.65rem 0 0.85rem;
}

.ox-promo-title {
  margin: 0 0 0.35rem;
  font-size: 0.82rem;
  color: var(--ox-ink-soft);
  text-align: center;
  letter-spacing: 0.06em;
}

.ox-promo-rail,
.ox-dock-rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem 0.35rem;
}

.ox-ad-chip {
  width: calc(20% - 0.35rem);
  max-width: 76px;
  text-decoration: none;
  color: var(--ox-ink-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.68rem;
}

.ox-ad-chip img {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(14, 22, 33, 0.12);
  background: #fff;
}

.ox-ad-chip span {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}

.ox-dock {
  position: sticky;
  top: var(--ox-header-h);
  z-index: 70;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--ox-line);
  padding: 0.45rem 0 0.65rem;
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.ox-dock.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.ox-dock-label {
  margin: 0 0 0.3rem;
  text-align: center;
  font-size: 0.75rem;
  color: #5b6b7a;
}

.ox-hero {
  position: relative;
  padding: 2.4rem 0 2rem;
  overflow: hidden;
}

.ox-hero::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--ox-glow), transparent 68%);
  top: -40px;
  right: -60px;
  animation: ox-drift 9s ease-in-out infinite alternate;
}

.ox-hero::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 155, 142, 0.28), transparent 70%);
  bottom: 10%;
  left: -50px;
  animation: ox-drift 11s ease-in-out infinite alternate-reverse;
}

@keyframes ox-drift {
  from {
    transform: translateY(0) scale(1);
  }
  to {
    transform: translateY(18px) scale(1.06);
  }
}

.ox-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.6rem;
}

.ox-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ox-teal);
  margin-bottom: 0.6rem;
}

.ox-kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--ox-apricot);
}

.ox-hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--ox-display);
  font-size: clamp(1.85rem, 5.4vw, 2.85rem);
  line-height: 1.25;
  font-weight: 400;
  color: var(--ox-ink);
}

.ox-lead {
  margin: 0;
  font-size: 1.02rem;
  color: #3d4d5c;
  max-width: 38rem;
}

.ox-hero-visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--ox-shadow);
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: #101820;
  min-height: 240px;
}

.ox-hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 240px;
  opacity: 0.92;
  transform: scale(1.02);
  transition: transform 0.6s ease;
}

.ox-hero-visual:hover img {
  transform: scale(1.06);
}

.ox-hero-visual figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.85rem 1rem;
  background: linear-gradient(transparent, rgba(10, 16, 24, 0.82));
  color: #f4f8fb;
  font-size: 0.86rem;
}

.ox-section {
  padding: 2.2rem 0;
}

.ox-section h2 {
  margin: 0 0 0.85rem;
  font-family: var(--ox-display);
  font-size: clamp(1.45rem, 3.8vw, 2rem);
  font-weight: 400;
  line-height: 1.3;
}

.ox-section h3 {
  margin: 1.4rem 0 0.55rem;
  font-size: 1.15rem;
  color: var(--ox-ink-soft);
}

.ox-prose p {
  margin: 0 0 1rem;
  color: #334352;
  font-size: 0.98rem;
}

.ox-ribbon {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.45));
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: calc(var(--ox-radius) + 6px);
  padding: 1.35rem 1.2rem;
  box-shadow: 0 10px 30px rgba(14, 22, 33, 0.06);
  backdrop-filter: blur(10px);
}

.ox-split {
  display: grid;
  gap: 1.25rem;
  align-items: center;
}

.ox-split.reverse .ox-shot {
  order: -1;
}

.ox-shot {
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--ox-line);
  box-shadow: var(--ox-shadow);
  background: #111;
}

.ox-shot img {
  width: 100%;
  display: block;
}

.ox-mosaic {
  display: grid;
  gap: 0.9rem;
}

.ox-tile {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--ox-line);
  border-radius: var(--ox-radius);
  padding: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.ox-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(14, 22, 33, 0.1);
}

.ox-tile h3 {
  margin-top: 0.7rem;
}

.ox-tile p {
  margin: 0;
  color: #445566;
  font-size: 0.92rem;
}

.ox-tile img {
  border-radius: 12px;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.ox-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0;
}

.ox-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(26, 155, 142, 0.12), rgba(240, 120, 60, 0.12));
  color: var(--ox-ink-soft);
  font-size: 0.82rem;
  border: 1px solid rgba(26, 155, 142, 0.18);
}

.ox-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  padding: 0.72rem 1.25rem;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--ox-apricot), var(--ox-apricot-deep));
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 600;
  box-shadow: 0 10px 24px var(--ox-glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ox-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(212, 92, 34, 0.35);
}

.ox-cta.ghost {
  background: transparent;
  color: var(--ox-ink) !important;
  border: 1px solid var(--ox-line);
  box-shadow: none;
}

.ox-crumb {
  padding: 1rem 0 0.2rem;
  font-size: 0.86rem;
  color: #607080;
}

.ox-crumb a {
  color: #607080;
  text-decoration: none;
}

.ox-crumb span {
  margin: 0 0.35rem;
  opacity: 0.6;
}

.ox-legal {
  padding-bottom: 3rem;
}

.ox-legal .ox-ribbon {
  margin-top: 1rem;
}

.ox-error {
  min-height: 58vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 0;
}

.ox-error h1 {
  font-family: var(--ox-display);
  font-size: clamp(2.4rem, 8vw, 4rem);
  margin: 0 0 0.5rem;
  background: linear-gradient(90deg, var(--ox-teal), var(--ox-apricot));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ox-footer {
  margin-top: 2rem;
  padding: 2rem 0 5.5rem;
  background: linear-gradient(180deg, transparent, rgba(14, 22, 33, 0.04));
  border-top: 1px solid var(--ox-line);
}

.ox-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.2rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.ox-footer-nav a {
  color: var(--ox-ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
}

.ox-copy {
  text-align: center;
  color: #6a7a8a;
  font-size: 0.82rem;
  margin: 0;
}

.ox-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.ox-reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

.ox-quote {
  border-left: 3px solid var(--ox-apricot);
  padding: 0.2rem 0 0.2rem 1rem;
  margin: 1.2rem 0;
  color: #2f4050;
  font-size: 1.02rem;
}

.ox-timeline {
  display: grid;
  gap: 0.9rem;
  margin: 1rem 0;
}

.ox-timeline article {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0.8rem;
  align-items: start;
}

.ox-timeline b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border-radius: 10px;
  background: var(--ox-ink);
  color: #fff;
  font-size: 0.78rem;
}

@media (min-width: 720px) {
  .ox-links {
    display: flex;
  }

  .ox-burger {
    display: none;
  }

  .ox-ad-chip {
    width: calc(12.5% - 0.35rem);
  }

  .ox-hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .ox-split {
    grid-template-columns: 1fr 1fr;
  }

  .ox-split.reverse .ox-shot {
    order: 0;
  }

  .ox-split.reverse .ox-copyblock {
    order: -1;
  }

  .ox-mosaic {
    grid-template-columns: repeat(3, 1fr);
  }

  .ox-footer {
    padding-bottom: 3rem;
  }
}

@media (min-width: 980px) {
  .ox-mosaic.dense {
    grid-template-columns: repeat(4, 1fr);
  }
}