:root {
  --ink: #0a0a0a;
  --ink-secondary: #525252;
  --ink-muted: #8a8a8a;
  --ink-inverse: #ffffff;
  --line-strong: #e5e5e5;
  --line-subtle: #f0f0f0;
  --surface: #ffffff;
  --canvas: #fafaf9;
  --canvas-raised: #f5f5f4;
  --blue: #002fa7;
  --blue-hover: #001f75;
  --blue-soft: #e6ebf5;
  --blue-ring: rgba(0, 47, 167, 0.16);
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --header-h: 58px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  width: 100%;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

img,
svg {
  display: block;
}

button,
a {
  cursor: pointer;
}

a:focus-visible,
button:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 3px var(--blue-ring);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 40px;
  border-bottom: 1px solid var(--line-strong);
  background: rgba(250, 250, 249, 0.94);
  backdrop-filter: blur(12px);
}

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

.brand-logo {
  width: 128px;
  max-height: 28px;
  height: auto;
  object-fit: contain;
}

.brand-text {
  color: var(--ink-secondary);
  font-size: 13px;
  line-height: 1.3;
  white-space: nowrap;
}

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

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-md);
  color: var(--ink-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: background 150ms ease, color 150ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--canvas-raised);
  color: var(--ink);
}

.site-nav .nav-lang {
  color: var(--blue);
}

.menu-button {
  display: none;
  appearance: none;
  -webkit-appearance: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-md);
  background: var(--ink);
  color: var(--ink-inverse);
}

.menu-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.5;
}

.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 40px 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 48px;
  padding-bottom: 48px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--line-strong);
}

.page-hero {
  padding-bottom: 40px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--line-strong);
}

.tag,
.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  white-space: normal;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

.hero h1,
.page-hero h1 {
  width: 100%;
  max-width: 760px;
  margin: 20px 0 16px;
  color: var(--ink);
  font-size: 58px;
  line-height: 1.12;
  font-weight: 520;
  overflow-wrap: anywhere;
}

.page-hero h1 {
  font-size: 44px;
}

.hero p,
.page-hero p {
  width: 100%;
  max-width: 680px;
  margin: 0;
  color: var(--ink-secondary);
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button.primary {
  background: var(--blue);
  color: var(--ink-inverse);
}

.button.primary:hover {
  background: var(--blue-hover);
}

.button.secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

.button.secondary:hover {
  border-color: var(--ink);
  background: var(--canvas-raised);
}

.hero-panel,
.panel,
.card,
.article,
.split-media,
.copy-block {
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.hero-main,
.panel-value,
.card,
.article,
.copy-block,
.page-hero,
.footer {
  min-width: 0;
  overflow-wrap: anywhere;
}

.hero-panel {
  align-self: start;
  overflow: hidden;
}

.panel-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-subtle);
}

.panel-row:last-child {
  border-bottom: 0;
}

.panel-label {
  color: var(--ink-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.panel-value {
  min-width: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
}

.section {
  margin-bottom: 48px;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-strong);
}

.split {
  display: grid;
  grid-template-columns: 420px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.split-media {
  padding: 28px;
}

.split-media img {
  width: 100%;
  max-width: 100%;
  height: auto;
}

.copy-block,
.article,
.panel {
  padding: 24px;
}

.copy-block h2,
.article h2,
.panel h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.35;
  font-weight: 520;
}

.copy-block h3,
.article h3,
.panel h3 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
  font-weight: 520;
}

.copy-block p,
.article p,
.panel p {
  margin: 0 0 14px;
  color: var(--ink-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.inline-link {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
}

.inline-link:hover {
  color: var(--blue-hover);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 12px;
}

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

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

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

.card {
  min-width: 0;
  padding: 24px;
}

.card-num {
  display: block;
  margin-bottom: 10px;
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 600;
}

.card h2,
.card h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.4;
  font-weight: 520;
}

.card p,
.card li {
  color: var(--ink-secondary);
  font-size: 14px;
  line-height: 1.65;
}

.card p {
  margin: 0 0 10px;
}

.card ul,
.article ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.card li,
.article li {
  position: relative;
  padding: 10px 0;
  border-top: 1px solid var(--line-subtle);
}

.partner-grid span,
.meta-list span {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink-secondary);
  font-size: 14px;
  line-height: 1.45;
}

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

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

.article-header {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-subtle);
}

.article-kicker {
  color: var(--ink-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.quote {
  margin: 0;
  padding: 20px 24px;
  border-left: 3px solid var(--blue);
  background: var(--surface);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.65;
}

.footer {
  border-top: 1px solid var(--line-strong);
  background: var(--surface);
}

.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 0.85fr 1.3fr;
  gap: 40px;
  padding: 40px;
}

.footer h2 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
  font-weight: 600;
}

.footer p,
.footer a {
  margin: 0 0 8px;
  color: var(--ink-secondary);
  font-size: 13px;
  line-height: 1.7;
}

.footer a:hover {
  color: var(--blue);
}

@media (max-width: 1080px) {
  .hero,
  .split {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-panel,
  .split-media {
    max-width: 680px;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .topbar {
    height: var(--header-h);
    padding: 0 16px;
  }

  .brand-logo {
    width: 112px;
  }

  .brand-text {
    display: none;
  }

  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    border-bottom: 1px solid var(--line-strong);
    background: var(--canvas);
  }

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

  .site-nav a {
    justify-content: flex-start;
    min-height: 44px;
    padding: 0 8px;
  }

  .page {
    padding: 40px 16px 56px;
  }

  .hero {
    gap: 28px;
    padding-bottom: 36px;
    margin-bottom: 36px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 36px;
  }

  .hero p,
  .page-hero p {
    font-size: 15px;
  }

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

  .button {
    width: 100%;
    min-height: 44px;
  }

  .panel-row {
    grid-template-columns: 92px minmax(0, 1fr);
    padding: 14px 16px;
  }

  .split-media,
  .copy-block,
  .card,
  .article,
  .panel {
    padding: 20px;
  }

  .copy-block h2,
  .article h2,
  .panel h2 {
    font-size: 22px;
  }

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

  .footer-grid {
    gap: 24px;
    padding: 32px 16px;
  }
}

@media (max-width: 380px) {
  .hero h1,
  .page-hero h1 {
    font-size: 32px;
  }

  .panel-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}