:root {
  --ink: #1a1a1a;
  --paper: #f5f0e8;
  --blue: #0d4a6e;
  --green: #00c48c;
  --gold: #f0a500;
  --gray: #333333;
  --line: #e8e0d4;
  --white: #ffffff;
  --red: #e74c3c;
  --sky: #e8f4f8;
  --rail-w: 280px;
  --max: 1200px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  --read-progress: 0%;
  --font-title: Impact, "Arial Black", "Noto Sans SC Black", sans-serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-data: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.7;
}

body::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: var(--read-progress);
  height: 4px;
  background: linear-gradient(90deg, var(--green), var(--gold));
  z-index: 3000;
  pointer-events: none;
}

h1,
h2,
h3 {
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.1;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.25rem, 2vw, 2rem);
}

p {
  margin-top: 0;
}

a {
  color: var(--blue);
  text-underline-offset: 0.22em;
}

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

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

::selection {
  background: var(--green);
  color: var(--ink);
}

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

ul[class] {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 4000;
  padding: 0.6rem 1rem;
  background: var(--gold);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 0.2s;
}

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

.site-header {
  position: relative;
  background: var(--blue);
  color: var(--paper);
  z-index: 1000;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green) 0 68%, var(--gold) 68% 100%);
}

.header-inner {
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--paper);
  text-decoration: none;
}

.brand:hover {
  color: var(--paper);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: var(--green);
  color: var(--ink);
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 900;
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
  transition: background 0.2s;
}

.brand:hover .brand-mark {
  background: var(--gold);
}

.brand-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.brand-sub {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
  margin-top: 0.15rem;
}

.site-footer .brand-sub {
  color: var(--gold);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: var(--paper);
  padding: 0.5rem 0.6rem;
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}

.nav-toggle-box {
  position: relative;
  width: 24px;
  height: 14px;
  display: inline-block;
}

.nav-toggle-box span,
.nav-toggle-box::before,
.nav-toggle-box::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

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

.nav-toggle-box::before {
  top: 0;
}

.nav-toggle-box::after {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box::after {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle-label {
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav {
  display: none;
}

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

.nav-list a {
  display: block;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  color: var(--paper);
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.nav-list a:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
}

.nav-list a[aria-current="page"] {
  background: var(--green);
  color: var(--ink);
  box-shadow: 0 0 0 3px rgba(0, 196, 140, 0.28);
}

.nav-cta {
  display: block;
  text-align: center;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
  background: var(--green);
  color: var(--ink);
  transform: translateY(-2px);
}

.header-stats {
  display: none;
  margin-top: auto;
  gap: 0.75rem;
  padding: 1rem 0 0.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.header-stat {
  flex: 1;
  font-family: var(--font-data);
  color: var(--paper);
}

.header-stat strong {
  display: block;
  font-size: 1.25rem;
  line-height: 1.2;
  color: var(--green);
}

.header-stat span {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: rgba(245, 240, 232, 0.65);
}

@media (max-width: 1023.98px) {
  .site-header {
    position: sticky;
    top: 0;
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    min-height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blue);
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    display: none;
  }

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

  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .nav-cta {
    margin-top: 1rem;
  }

  .header-stats {
    display: none;
  }
}

@media (min-width: 1024px) {
  body {
    padding-left: var(--rail-w);
  }

  .site-header {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--rail-w);
    height: 100vh;
    display: flex;
  }

  .header-inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .brand {
    padding: 2rem 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .site-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .nav-toggle {
    display: none;
  }

  .header-stats {
    display: flex;
  }

  .nav-cta {
    margin-top: 1rem;
  }
}

.site-footer {
  background: var(--ink);
  color: var(--paper);
  margin-top: 4rem;
  padding: 3.5rem clamp(1rem, 4vw, 2.5rem) 1.5rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.footer-brand .brand {
  color: var(--paper);
}

.footer-brand .brand-name {
  color: var(--paper);
}

.trust-statement {
  margin: 1.5rem 0 0;
  padding-left: 1rem;
  border-left: 4px solid var(--green);
  font-family: var(--font-data);
  font-size: 0.875rem;
  color: rgba(245, 240, 232, 0.85);
}

.footer-heading {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

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

.footer-list li {
  margin-bottom: 0.5rem;
}

.footer-list a {
  color: var(--paper);
  text-decoration: none;
  padding: 0.15rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.footer-list a:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}

.footer-contact p {
  margin: 0.35rem 0;
  color: var(--paper);
}

.footer-contact address {
  font-style: normal;
  color: var(--paper);
}

.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  color: rgba(245, 240, 232, 0.68);
  font-size: 0.8125rem;
}

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

@media (min-width: 1024px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer-legal {
    flex-direction: row;
    justify-content: space-between;
  }
}

.to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 2200;
  background: var(--blue);
  color: #ffffff;
  border: 2px solid var(--green);
  border-radius: 999px;
  padding: 0.6rem 1rem;
  font-weight: 800;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  background: var(--green);
  color: var(--ink);
}

.container {
  max-width: var(--max);
  margin-inline: auto;
  padding: 3rem clamp(1rem, 4vw, 2rem);
}

.section {
  margin: 2rem 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-head::after {
  content: "";
  height: 2px;
  flex: 1;
  background: var(--line);
}

.layout-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.span-3,
.span-4,
.span-6,
.span-8,
.span-12 {
  grid-column: span 12;
}

@media (min-width: 768px) {
  .span-3 {
    grid-column: span 3;
  }

  .span-4 {
    grid-column: span 4;
  }

  .span-6 {
    grid-column: span 6;
  }

  .span-8 {
    grid-column: span 8;
  }

  .span-12 {
    grid-column: span 12;
  }
}

.panel {
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.panel--clip {
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.panel-pad {
  padding: clamp(1.25rem, 3vw, 2rem);
}

.hero-frame {
  position: relative;
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--blue);
  padding: clamp(1.25rem, 3vw, 2.5rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--blue);
  border: 2px solid var(--blue);
  color: #ffffff;
  padding: 0.7rem 1.2rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink);
}

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.btn--gold:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold);
}

.btn--ghost {
  background: transparent;
  border-color: var(--blue);
  color: var(--blue);
}

.btn--ghost:hover {
  background: var(--sky);
  color: var(--blue);
}

.tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--sky);
  color: var(--blue);
  border-left: 3px solid var(--green);
  padding: 0.25rem 0.625rem;
}

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

.stat-card {
  position: relative;
  overflow: hidden;
  background: var(--blue);
  color: var(--paper);
  padding: 1.25rem;
}

.stat-card::after {
  content: "";
  position: absolute;
  right: -14px;
  top: -14px;
  width: 48px;
  height: 48px;
  border: 4px solid var(--green);
  transform: rotate(45deg);
  opacity: 0.35;
  pointer-events: none;
}

.stat-value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1;
  color: var(--green);
}

.stat-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.875rem;
  color: rgba(245, 240, 232, 0.72);
}

@media (min-width: 768px) {
  .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tick-list {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
}

.tick-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.5rem;
}

.tick-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--green);
  font-weight: 900;
}

.timeline {
  position: relative;
  margin: 1.5rem 0;
  padding-left: 1.5rem;
  border-left: 2px solid var(--line);
}

.timeline-item {
  position: relative;
  padding: 0 0 1.25rem 1rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 0);
}

.timeline-item time {
  display: block;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--green);
}

.slant-line {
  height: 6px;
  border: 0;
  margin: 2rem 0;
  background: repeating-linear-gradient(135deg, var(--blue) 0 14px, transparent 14px 26px);
}

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--sky);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background:
    linear-gradient(135deg, rgba(13, 74, 110, 0.18) 25%, transparent 25%),
    linear-gradient(225deg, rgba(13, 74, 110, 0.18) 25%, transparent 25%);
  background-size: 20px 20px;
}

.media-frame img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.media-frame[data-caption]::after {
  content: attr(data-caption);
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 75%;
  padding: 0.25rem 0.625rem;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.75rem;
  font-family: var(--font-data);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 1rem 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--green);
}

.breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}

.breadcrumb [aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-data);
  background: var(--white);
}

.data-table caption {
  text-align: left;
  font-weight: 800;
  padding: 0.5rem 0;
}

.data-table th,
.data-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table th {
  background: var(--blue);
  color: #ffffff;
}

.prose {
  max-width: 70ch;
}

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

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