:root {
  --navy: #0b1f3a;
  --navy-mid: #123056;
  --navy-deep: #061428;
  --gold: #c4a35a;
  --gold-soft: #d4bc7d;
  --cream: #f6f2e9;
  --paper: #fffcf7;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --line: rgba(196, 163, 90, 0.28);
  --shadow: 0 18px 50px rgba(11, 31, 58, 0.12);
  --radius: 14px;
  --header-h: 72px;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(6, 20, 40, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(196, 163, 90, 0.18);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  flex-shrink: 0;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border: 1px solid var(--gold);
  color: var(--gold);
  display: grid;
  place-items: center;
  font-size: 16px;
  letter-spacing: 0;
  font-weight: 600;
}

.logo-text {
  font-size: 18px;
  letter-spacing: 0.18em;
  font-weight: 500;
}

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

.nav a {
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 12px;
  font-size: 14px;
  letter-spacing: 0.04em;
  border-bottom: 1px solid transparent;
}

.nav a:hover,
.nav a.is-active {
  color: var(--gold-soft);
  border-bottom-color: var(--gold);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(196, 163, 90, 0.4);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  position: relative;
  margin: 0 auto;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  place-items: center;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(6, 20, 40, 0.2), rgba(6, 20, 40, 0.82)),
    radial-gradient(1200px 500px at 80% -10%, rgba(196, 163, 90, 0.22), transparent 55%),
    linear-gradient(135deg, var(--navy-deep), var(--navy-mid) 55%, #1a3c67);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, #000 30%, transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  padding: 96px 0 80px;
}

.kicker {
  color: var(--gold);
  letter-spacing: 0.28em;
  font-size: 12px;
  text-transform: uppercase;
  margin: 0 0 18px;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
}

.hero p {
  max-width: 560px;
  margin: 0 0 36px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 2px;
  border: 1px solid var(--gold);
  letter-spacing: 0.12em;
  font-size: 14px;
  transition: 0.2s ease;
}

.btn-primary {
  background: var(--gold);
  color: var(--navy-deep);
}

.btn-primary:hover {
  background: var(--gold-soft);
}

.btn-ghost {
  color: #fff;
  background: transparent;
}

.btn-ghost:hover {
  background: rgba(196, 163, 90, 0.12);
}

.btn-dark {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.btn-dark:hover {
  background: var(--navy-mid);
}

section {
  padding: 88px 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: 40px;
}

.section-head h2,
.page-hero h1,
.article h1 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 560;
  letter-spacing: 0.08em;
  color: var(--navy);
}

.section-head p,
.lead {
  margin: 0;
  color: var(--muted);
}

.page-hero {
  background: var(--navy);
  color: #fff;
  padding: 72px 0 56px;
}

.page-hero h1 {
  color: #fff;
}

.page-hero p {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.72);
}

.grid-3,
.grid-4,
.grid-2 {
  display: grid;
  gap: 20px;
}

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

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

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

.card,
.stat,
.case-card,
.news-card,
.contact-card {
  background: #fff;
  border: 1px solid rgba(11, 31, 58, 0.06);
  box-shadow: var(--shadow);
}

.card,
.case-card,
.news-card,
.contact-card {
  padding: 28px;
  border-radius: var(--radius);
}

.card h3,
.case-card h3,
.news-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--navy);
  letter-spacing: 0.06em;
}

.card p,
.case-card p,
.news-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.card-index {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.2em;
  margin-bottom: 18px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--cream);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  background: transparent;
  box-shadow: none;
  border: 0;
  border-right: 1px solid var(--line);
  padding: 36px 20px;
  text-align: center;
}

.stat:last-child {
  border-right: 0;
}

.stat strong {
  display: block;
  font-size: 28px;
  color: var(--navy);
  font-weight: 560;
  letter-spacing: 0.04em;
}

.stat span {
  color: var(--muted);
  font-size: 13px;
}

.band {
  background: var(--cream);
}

.case-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tag {
  display: inline-block;
  padding: 4px 8px;
  border: 1px solid var(--line);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.sectors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sector {
  padding: 12px 18px;
  border: 1px solid var(--line);
  color: var(--navy);
  background: #fff;
  letter-spacing: 0.08em;
  font-size: 14px;
}

.cta {
  background: var(--navy-deep);
  color: #fff;
}

.cta h2 {
  color: #fff;
}

.cta p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}

.prose {
  max-width: 760px;
}

.prose h2,
.prose h3 {
  color: var(--navy);
  letter-spacing: 0.06em;
}

.prose p,
.prose li {
  color: #3b4654;
}

.prose ul {
  padding-left: 1.2em;
}

.legal {
  background: #fff;
  padding: 56px 0 96px;
}

.legal .prose {
  max-width: 800px;
}

.values {
  display: grid;
  gap: 16px;
}

.value-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
}

.value-row strong {
  color: var(--navy);
  letter-spacing: 0.08em;
}

.news-card time {
  display: block;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
}

.contact-list span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 4px;
}

.form {
  display: grid;
  gap: 14px;
}

.form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.form input,
.form textarea {
  width: 100%;
  border: 1px solid rgba(11, 31, 58, 0.12);
  background: var(--paper);
  padding: 12px 14px;
  color: var(--ink);
  outline: none;
}

.form input:focus,
.form textarea:focus {
  border-color: var(--gold);
}

.form-note {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.72);
  padding: 48px 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(196, 163, 90, 0.16);
}

.site-footer h3 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 15px;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.72);
}

.site-footer a:hover {
  color: var(--gold-soft);
}

.footer-links {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.risk {
  margin: 24px 0 0;
  font-size: 12px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
}

.copyright {
  margin: 18px 0 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.42);
}

.notice {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(196, 163, 90, 0.08);
  border-left: 3px solid var(--gold);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--navy-deep);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 0;
    border-bottom: 1px solid rgba(196, 163, 90, 0.18);
  }

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

  .nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .grid-3,
  .grid-4,
  .grid-2,
  .stats,
  .contact-grid,
  .footer-top,
  .value-row {
    grid-template-columns: 1fr;
  }

  .stat {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  section {
    padding: 64px 0;
  }
}