:root {
  --color-navy: #0A1F44;
  --color-navy-2: #16325F;
  --color-orange: #FF6B35;
  --color-orange-light: #FFD9C4;
  --color-bg: #F4F6F9;
  --color-white: #FFFFFF;
  --color-text: #1A1A1A;
  --color-muted: #5A687D;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "SFMono-Regular", Consolas, "Liberation Mono", "Courier New", monospace;
  --container: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
  --nav-h: 68px;
  --border-light: rgba(10, 31, 68, 0.12);
}

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

html {
  margin: 0;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
}

h1, h2, h3, h4, p, figure, ol, ul {
  margin: 0;
}

ul, ol {
  list-style: none;
  padding: 0;
}

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

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-orange);
}

button {
  font: inherit;
  cursor: pointer;
}

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

#main-content {
  display: block;
  scroll-margin-top: 76px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 2000;
  transform: translateY(-220%);
  background: var(--color-orange);
  color: var(--color-navy);
  font-weight: 700;
  padding: 8px 14px;
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-shell {
  padding: 56px 0 80px;
}

.section-narrow {
  max-width: 760px;
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid transparent;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-navy);
}

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

.btn-outline {
  border-color: rgba(10, 31, 68, 0.3);
  color: var(--color-navy);
}

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

.breadcrumbs {
  max-width: var(--container);
  margin-inline: auto;
  padding: 20px var(--gutter) 0;
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
}

.breadcrumbs-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
}

.breadcrumbs-item + .breadcrumbs-item::before {
  content: "/";
  color: var(--color-muted);
}

.breadcrumbs-link {
  color: var(--color-navy);
}

.breadcrumbs-link:hover {
  color: var(--color-orange);
}

.breadcrumbs-current {
  color: var(--color-orange);
  font-weight: 700;
}

.section-head {
  max-width: var(--container);
  margin-inline: auto;
  padding: 80px var(--gutter) 32px;
  display: grid;
  gap: 16px;
}

.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-orange);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-orange);
}

.section-title {
  color: var(--color-navy);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.section-lead {
  max-width: 640px;
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 17px;
}

.display-number {
  color: var(--color-orange);
  font-family: var(--font-num);
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.metric-number {
  color: var(--color-navy);
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

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

.grid-cols-2,
.grid-cols-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 700px) {
  .grid,
  .grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1024px) {
  .grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  position: relative;
  display: block;
  background: var(--color-white);
  border: 1px solid var(--border-light);
  border-top: 4px solid transparent;
  padding: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-top-color: var(--color-orange);
  box-shadow: 6px 6px 0 rgba(10, 31, 68, 0.08);
  transform: translateY(-2px);
}

.card-title {
  color: var(--color-navy);
  font-size: 20px;
  margin-bottom: 10px;
}

.card-body {
  color: var(--color-muted);
  font-size: 15px;
  margin-bottom: 16px;
}

.card-meta {
  color: var(--color-orange);
  font-size: 14px;
  font-weight: 700;
}

.card-link {
  font-weight: 700;
}

.note-block {
  border-left: 4px solid var(--color-orange);
  background: var(--color-orange-light);
  color: var(--color-navy);
  padding: 16px 18px;
  font-size: 15px;
}

.image-frame {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-2) 100%);
  color: rgba(255, 255, 255, 0.75);
}

.image-frame::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 80px;
  height: 80px;
  border: 2px solid var(--color-orange);
  opacity: 0.6;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame--tall {
  aspect-ratio: 3 / 4;
}

.image-frame--card {
  aspect-ratio: 16 / 10;
}

.image-frame__label {
  position: relative;
  z-index: 1;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header {
  position: relative;
  z-index: 100;
  background: var(--color-white);
}

.header-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin-inline: auto;
  padding: 12px var(--gutter);
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.9);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand-mark::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 18px;
  background: var(--color-orange);
}

.brand-mark:hover {
  color: var(--color-orange-light);
}

.brand-divider {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.35);
}

.brand-tagline {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-orange);
}

.header-navbar {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border-light);
}

.header-navbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-orange);
}

.nav-inner {
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  max-width: var(--container);
  min-height: var(--nav-h);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  align-items: stretch;
  gap: clamp(16px, 2.4vw, 36px);
}

.nav-item {
  display: flex;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 2px;
  color: var(--color-navy);
  font-size: 16px;
  font-weight: 700;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.nav-link:hover {
  color: var(--color-orange);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--color-orange);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--color-navy);
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 700;
}

.nav-toggle:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.nav-toggle-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-navy);
  transition: background 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--color-navy);
  transition: transform 0.2s ease;
}

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

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

.site-header[data-nav-open] .nav-toggle-icon {
  background: transparent;
}

.site-header[data-nav-open] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header[data-nav-open] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.header-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  pointer-events: none;
  z-index: 3;
}

.header-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--color-orange);
}

.site-footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.4fr;
  gap: 40px;
  max-width: var(--container);
  margin-inline: auto;
  padding: 64px var(--gutter) 40px;
}

.footer-brand-name {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.footer-slogan {
  color: var(--color-orange);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-about {
  max-width: 32em;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  line-height: 1.8;
}

.footer-heading {
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-link {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
}

.footer-link:hover {
  color: var(--color-orange-light);
}

.footer-contact .footer-meta {
  display: flex;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-bottom: 8px;
}

.footer-meta-label {
  display: inline-block;
  min-width: 4em;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 700;
}

.footer-icp {
  margin-top: 20px;
  padding-left: 8px;
  border-left: 3px solid var(--color-orange);
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  max-width: var(--container);
  margin-inline: auto;
  padding: 20px var(--gutter);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-copyright {
  font-size: 14px;
}

.footer-legal {
  display: flex;
  gap: 12px;
  font-size: 14px;
}

.footer-sep {
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 820px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 4px solid var(--color-orange);
    box-shadow: 0 16px 24px rgba(10, 31, 68, 0.08);
  }

  .site-header[data-nav-open] .site-nav {
    display: block;
  }

  .nav-list {
    display: grid;
    gap: 0;
  }

  .nav-item {
    border-top: 1px solid var(--border-light);
  }

  .nav-link {
    min-height: 48px;
    padding: 12px var(--gutter);
  }

  .nav-link::after {
    height: 3px;
    bottom: 0;
  }
}

@media (max-width: 520px) {
  .header-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .header-status {
    display: none;
  }

  .brand-tagline {
    font-size: 12px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}