:root {
  --navy: #061b35;
  --navy-2: #0b2748;
  --ink: #020a14;
  --blue: #194c8f;
  --signal: #df2a2a;
  --gold: #f2b733;
  --white: #ffffff;
  --muted: #9fb2c5;
  --body: #d5e2ee;
  --panel: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.14);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --header-offset: 5.75rem;
  --pad-x: clamp(1.25rem, 7vw, 6.5rem);
  --font: "Inter", "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-offset);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--white);
  background: var(--navy);
  line-height: 1.6;
}

a {
  color: inherit;
}

button:not(:disabled),
[role="button"]:not(:disabled) {
  cursor: pointer;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--pad-x);
  top: 0.75rem;
  z-index: 40;
  transform: translateY(-160%);
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.skip-link:focus {
  transform: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--pad-x);
  background: rgba(6, 27, 53, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  text-decoration: none;
}

.brand-mark,
.mini-mark {
  display: inline-grid;
  place-items: center;
  width: 2.875rem;
  height: 2.875rem;
  flex: none;
  font-weight: 900;
}

.brand-mark {
  border-radius: 50%;
  background: linear-gradient(135deg, var(--signal), #ff6a4d);
  box-shadow: 0 0 0 8px rgba(223, 42, 42, 0.12);
}

.brand-text strong {
  display: block;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.8rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  color: var(--body);
}

.main-nav a {
  text-decoration: none;
  font-weight: 600;
}

.main-nav a:hover,
.card-link:hover,
.lang-switch button:hover,
.contact-lines a:hover {
  color: var(--gold);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  background: transparent;
  color: var(--white);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  font-size: 1.35rem;
  line-height: 1;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
}

.lang-switch button {
  min-height: 2.75rem;
  padding: 0 0.35rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 800;
}

.lang-switch button[aria-pressed="true"] {
  color: var(--white);
}

.lang-slash {
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.72fr);
  gap: 3rem;
  align-items: center;
  padding: clamp(3.5rem, 8vw, 7rem) var(--pad-x) clamp(3rem, 7vw, 6rem);
  background:
    radial-gradient(circle at 86% 18%, rgba(223, 42, 42, 0.2), transparent 32%),
    radial-gradient(circle at 10% 0%, rgba(25, 76, 143, 0.55), transparent 34%),
    linear-gradient(160deg, var(--navy), var(--ink));
}

.eyebrow,
.tag,
.status {
  margin: 0 0 0.75rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 800;
  font-size: 0.78rem;
}

.tag,
.status {
  letter-spacing: 0.1em;
}

h1,
h2,
h3 {
  line-height: 1.08;
  margin: 0;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 5.6vw, 5.15rem);
  max-width: 16ch;
  letter-spacing: -0.045em;
}

.hero-copy,
.lede {
  max-width: 42rem;
  color: var(--body);
  font-size: 1.125rem;
}

.hero-copy {
  margin: 1.5rem 0 2rem;
}

.hero-actions,
.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

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

.btn-primary {
  background: var(--signal);
  color: var(--white);
}

.btn-primary:hover {
  background: #c81f1f;
}

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--white);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hero-card,
.hub-grid article,
.text-panel,
.brand-card,
.contact-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
}

.hero-card {
  padding: 2rem;
  box-shadow: var(--shadow);
}

.status {
  display: inline-block;
  margin-bottom: 1.25rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(242, 183, 51, 0.14);
}

.hero-card h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.hero-card p {
  margin: 0.95rem 0 0;
}

.hero-card p,
.hub-grid p,
.text-panel p,
.brand-card p,
.brand-card li,
.contact-card p,
.contact-lines {
  color: var(--body);
}

.section {
  padding: clamp(4rem, 8vw, 5.75rem) var(--pad-x);
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 52rem;
  margin-bottom: 2.4rem;
}

.section h2,
.contact-card h2 {
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  letter-spacing: -0.04em;
}

.lede {
  margin: 1rem 0 0;
}

.hub-grid,
.brand-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.hub-grid article,
.brand-card {
  padding: 1.75rem;
}

.hub-grid h3 {
  margin-bottom: 0.75rem;
  font-size: 1.3rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 2.75rem;
  align-items: start;
}

.split .section-heading {
  margin-bottom: 0;
}

.text-panel {
  padding: 2rem;
}

.text-panel p + p {
  margin-top: 1rem;
}

.brands-section {
  background: linear-gradient(180deg, var(--navy), var(--navy-2));
}

.brand-card {
  min-height: 28rem;
  display: flex;
  flex-direction: column;
}

.brand-card.featured {
  border-color: rgba(223, 42, 42, 0.72);
  box-shadow: 0 18px 60px rgba(223, 42, 42, 0.15);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.6rem;
}

.mini-mark {
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
}

.pulse {
  background: var(--signal);
}

.tag {
  margin: 0;
  text-align: right;
}

.brand-card h3 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.7rem, 2.4vw, 2.35rem);
}

.brand-card ul {
  margin: 0.6rem 0 1.4rem;
  padding-left: 1.15rem;
  list-style: disc;
}

.brand-card li + li {
  margin-top: 0.35rem;
}

.card-links {
  margin-top: auto;
  flex-direction: column;
  align-items: flex-start;
}

.card-link {
  color: var(--gold);
  text-decoration: none;
  font-weight: 800;
}

.ghost {
  opacity: 0.86;
}

.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.35rem;
  margin-top: 1.5rem;
}

.flow-item {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.flow-step {
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--body);
  font-weight: 700;
}

.flow-arrow {
  color: var(--gold);
  font-weight: 800;
}

.contact-section {
  background:
    radial-gradient(circle at 8% 90%, rgba(223, 42, 42, 0.18), transparent 34%),
    linear-gradient(135deg, var(--navy-2), var(--navy));
}

.contact-card {
  max-width: 52rem;
  padding: 2.5rem;
}

.contact-card h2 {
  margin: 0.2rem 0 1rem;
}

.contact-lines {
  margin-top: 1.5rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
}

.contact-lines p {
  margin: 0.35rem 0;
}

.founder {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.7rem;
  color: var(--white);
  font-size: 1.2rem;
}

.contact-lines a {
  color: var(--gold);
  font-weight: 700;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding: 1.6rem var(--pad-x);
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--ink);
}

.site-footer p {
  margin: 0;
  max-width: 40rem;
}

.site[lang="zh-Hans"] h1,
.site[lang="zh-Hans"] h2,
.site[lang="zh-Hans"] h3 {
  letter-spacing: 0;
  line-height: 1.28;
}

.site[lang="zh-Hans"] .eyebrow,
.site[lang="zh-Hans"] .tag,
.site[lang="zh-Hans"] .status {
  letter-spacing: 0.06em;
}

@media (max-width: 1040px) {
  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 0.4rem var(--pad-x) 1.1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    background: rgba(6, 27, 53, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a,
  .lang-switch {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 860px) {
  .hero,
  .split,
  .hub-grid,
  .brand-cards {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }

  .brand-card {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}